- •CONTENTS
- •Part Numbering
- •for General Purpose GRM15/18/21/31 Series
- •for General Purpose GRM32 Series
- •Ultra-small GRM03 Series
- •Tight Tolerance GRM03/15 Series
- •Thin Type
- •GRM Series Data
- •Microchips GMA Series
- •Specifications and Test Methods
- •Capacitor Arrays GNM Series
- •for Ultrasonic Sensors GRM Series
- •Specifications and Test Methods
- •Low ESL LLL/LLA/LLM Series
- •High-Q GJM Series
- •Tight Tolerance High-Q GJM Series
- •Specifications and Test Methods
- •High Frequency GQM Series
- •Specifications and Test Methods
- •High Frequency Type ERB Series
- •Specifications and Test Methods
- •ERB Series Data
- •Package
- •Notice
- •Reference Data
- •Medium Voltage Low Dissipation Factor
- •Medium Voltage High Capacitance for General Use
- •Only for LCD Backlight Inverter Circuit
- •Only for Information Devices/Tip & Ring
- •Only for Camera Flash Circuit
- •AC250V (r.m.s.) Type (Which Meet Japanese Law)
- •Safety Standard Recognized Type GC (UL, IEC60384-14 Class X1/Y2)
- •Safety Standard Recognized Type GD (IEC60384-14 Class Y3)
- •Safety Standard Recognized Type GF (IEC60384-14 Class Y2, X1/Y2)
- •Safety Standard Recognized Type GB (IEC60384-14 Class X2)
- •GA3 Series Specifications and Test Methods
- •GRM/GR4/GR7/GA2/GA3 Series Data (Typical Example)
- •Package
- •Notice
- •ISO 9001 Certifications
! |
Note |
• This PDF catalogeaise•P downloadedadr |
rating andfrom!theCAUTIONwebsite(oforMurataorage,s Manufacturingating,ope |
rating,co., ltdsoldTherefore,ring,. |
mounit’singspecificationsnd handling)areinsubjecthis catalochangeto to preventor oursmproductsking and/orin it mayburning,be discontinuedtc. |
without advance notice. Please check with our |
C02E.pdf |
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sales |
or |
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!Note |
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representativess• Th catalogproductnlyhas engineerscaltyp |
spbeforecificatorderingons because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. |
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• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. |
07.2.6 |
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Reference Data
1. Solderability
(1) Test Method
Subject the chip capacitor to the following conditions. Then apply flux (an ethanol solution of 25% rosin) to the chip and dip it in 230D eutectic solder for 2 seconds. Conditions:
Expose prepared at room temperature (for 6 months and 12 months, respectively)
Prepared at high temperature (for 100 hours at 85D) Prepared left at high humidity (for 100 hours under 90%RH to 95%RH at 40D)
Table 1
(2) Test Samples
GRM21 : Products for flow/reflow soldering.
(3) Acceptance Criteria
With a 60-power optical microscope, measure the surface area of the outer electrode that is covered with solder.
(4) Results
Refer to Table 1.
Sample |
Initial State |
Prepared at Room Temperature |
Prepared at High |
Prepared at High Humidity |
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6 months |
12 months |
Temperature for |
for 100 Hours at 90 to |
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100 Hours at 85D |
95% RH and 40D |
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GRM21 for flow/reflow soldering |
95 to 100% |
95 to 100% |
95% |
90 to 95% |
95% |
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2.Board Bending Strength for Solder Fillet Height
(1)Test Method
Solder the chip capacitor to the test PCB with the amount of solder paste necessary to achieve the fillet heights. Then bend the PCB using the method illustrated and measure capacitance.
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Capacitor |
20 |
50 |
Pressurizing |
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Speed : 1.0mm/sec. |
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Pressurize |
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13 |
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Supporting |
R230 |
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Note : The material of pressure application jig and |
45 |
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45 |
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support is the quenched metal. |
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Base |
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(hardness HB 183-255 or superhardness |
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,QRU¢£¶100 |
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HRA90 or more) |
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Flexure |
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Thickness |
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ST§•W®VYZ]ß™´Æ |
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1.65 |
Capacitance Meter |
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1.0 |
1.2 |
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40 |
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Solder Amount |
Larger Fillet. |
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Fillet up to Chip |
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4.0 |
1.6 |
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Material : GlassX[\©¨Epoxy |
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: Copper Foil (0.35mm thick) |
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: Solder Resist |
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(in mm) |
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(2) Test Samples
GRM21: 5C/R7/F5 Characteristics T=0.6mm
(3) Acceptance Criteria
Products should be determined to be defective if the change in capacitance has exceeded the values specified in Table 2.
Table 2
1 Characteristics |
Change in Capacitance |
5C |
Within T5% or T0.5pF, whichever is greater |
R7 |
Within T12.5% |
F5 |
Within T20% |
Continued on the following page. 
92
! |
Note |
• This PDF catalogeaise•P downloadedadr |
rating andfrom!theCAUTIONwebsite(oforMurataorage,s Manufacturingating,ope |
rating,co., ltdsoldTherefore,ring,. |
mounit’singspecificationsnd handling)areinsubjecthis catalochangeto to preventor oursmproductsking and/orin it mayburning,be discontinuedtc. |
without advance notice. Please check with our |
C02E.pdf |
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sales |
or |
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. |
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!Note |
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representativess• Th catalogproductnlyhas engineerscaltyp |
spbeforecificatorderingons because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. |
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• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. |
07.2.6 |
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Reference Data
Continued from the preceding page.
(4) Results
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GRM21 5C (T=0.6) |
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100 |
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(%) |
80 |
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Fillet up to Chip |
(%) |
Rate |
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Rate |
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60 |
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Thickness |
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Survival |
40 |
Larger Fillet |
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Survival |
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20 |
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0 |
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6 |
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Flexure (mm) |
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GRM21 F5 (T=0.6) |
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100 |
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(%) |
80 |
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Fillet up to Chip |
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Rate |
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60 |
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Thickness |
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Survival |
40 |
Larger Fillet |
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20 |
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6 |
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Flexure (mm) |
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GRM21 R7 (T=0.6)
100 |
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80 |
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Fillet up to Chip |
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60 |
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Thickness |
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40 |
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Larger Fillet |
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Flexure (mm) |
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3. Temperature Cycling for Solder Fillet Height |
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(1) Test Method |
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[Temperature Cycling] |
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Solder the chips to the substrate of various test fixtures |
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using sufficient amounts of solder to achieve the required |
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+125D |
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13 |
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fillet height. Then subject the fixtures to the cycle |
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illustrated below 200 times. |
Room Temperature |
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Time (min.) |
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-55D |
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5 |
30 |
5 |
30 |
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q Solder Amount |
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[Solder Amount] |
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Alumina substrates are typically designed for reflow |
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Glass Epoxy |
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soldering. |
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Substrate |
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Alumina |
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or Paper Phenol |
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Glass epoxy or paper phenol substrates are typically |
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T0.7T 0.5T |
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used for flow soldering. |
SolderAmount |
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1.6T1.3T T |
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Paper phenol |
(Thickness: 1.64mm) |
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w Material |
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Alumina |
(Thickness: 0.64mm) |
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Glass epoxy |
(Thickness: 1.64mm) |
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Solder to be used |
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6Z4 Eutectic solder |
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e Land Dimension |
[Land Dimension] |
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Land Pattern |
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1.5 |
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Alumina |
Ag/Pd=72/28 |
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Substrate |
Thickness: 10 to 12 m |
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1.5 |
1.2 |
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Glass Epoxy |
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Substrate |
Cu |
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(in mm) |
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Thickness: 35 |
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Paper Phenol |
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Substrate |
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Continued on the following page. |
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93
! |
Note |
• This PDF catalogeaise•P downloadedadr |
rating andfrom!theCAUTIONwebsite(oforMurataorage,s Manufacturingating,ope |
rating,co., ltdsoldTherefore,ring,. |
mounit’singspecificationsnd handling)areinsubjecthis catalochangeto to preventor oursmproductsking and/orin it mayburning,be discontinuedtc. |
without advance notice. Please check with our |
C02E.pdf |
||
|
sales |
or |
|
. |
|
|
|
||
|
!Note |
|
|
|
|
|
|
||
|
|
|
representativess• Th catalogproductnlyhas engineerscaltyp |
spbeforecificatorderingons because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. |
|||||
|
|
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. |
07.2.6 |
||||||
Reference Data
Continued from the preceding page.
(2) Test Samples
GRM21 5C/R7/F5 Characteristics T=0.6mm
(3) Acceptance Criteria
Products are determined to be defective if the change in capacitance has exceeded the values specified in Table 3.
Table 3
Characteristics |
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Change in Capacitance |
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5C |
Within T2.5% or T0.25pF, whichever is greater |
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R7 |
Within T7.5% |
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F5 |
Within T20% |
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(4) Results |
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Alumina Substrate (Thickness 0.64mm) |
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GRM21 5C (T=0.6) |
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GRM21 R7 (T=0.6) |
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100 |
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100 |
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AccumulatedPer- |
Defectivecent(%) |
80 |
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AccumulatedPer- |
Defectivecent(%) |
80 |
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e |
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60 |
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40 |
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e |
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w |
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qw |
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Number of Cycles |
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Number of Cycles |
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GRM21 F5 (T=0.6) |
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AccumulatedPer- |
Defectivecent(%) |
80 |
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e |
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Number of Cycles |
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13
GRM21 5C (T=0.6)
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100 |
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AccumulatedPer- |
Defectivecent(%) |
80 |
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60 |
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Number of Cycles |
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Glass Epoxy Substrate (Thickness 1.6mm)
GRM21 R7 (T=0.6)
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100 |
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AccumulatedPer- |
Defectivecent(%) |
80 |
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Number of Cycles |
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Accumulated Per-
GRM21 F5 (T=0.6)
100 |
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(%) |
80 |
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Defective |
60 |
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40 |
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cent |
20 |
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e |
0 |
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qw |
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50 |
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200 |
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Number of Cycles |
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Paper Phenol Substrate (Thickness 1.6mm)
GRM21 5C (T=0.6)
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100 |
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AccumulatedPer- |
Defectivecent(%) |
80 |
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60 |
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|
|
||
|
|
40 |
|
|
|
|
|
|
|
|
|
|
|
20 |
|
|
|
|
|
|
|
|
|
|
|
0 |
|
|
|
|
|
|
|
|
qwe |
|
|
0 |
50 |
100 |
150 |
200 |
|||||
|
|
|
|
|
|
|
|
Number of Cycles |
|||
GRM21 R7 (T=0.6)
|
100 |
|
|
|
|
|
|
|
|
|
|
AccumulatedPer- |
Defectivecent(%) |
80 |
|
|
|
|
|
|
|
|
|
60 |
|
|
|
|
|
|
|
|
|
||
|
|
40 |
|
|
|
|
|
|
|
|
|
|
|
20 |
|
|
|
|
|
|
|
|
|
|
|
0 |
|
|
|
|
|
|
|
e |
qw |
|
|
|
|
|
|
|
|
|
|
||
|
|
0 |
50 |
100 |
150 |
200 |
|||||
|
|
|
|
|
|
|
|
Number of Cycles |
|||
|
|
GRM21 F5 (T=0.6) |
|
|
|||
|
100 |
|
|
|
|
|
|
Accumulated Per- |
cent Defective (%) |
80 |
|
|
|
|
|
60 |
|
|
|
|
|
||
40 |
|
|
|
|
|
||
20 |
|
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|
|
||
0 |
|
|
|
e |
qw |
||
|
|
|
|
||||
|
|
|
|
|
|
||
|
|
0 |
50 |
100 |
150 |
200 |
|
|
|
|
|
|
Number of Cycles |
||
Continued on the following page. 
94
! |
Note |
• This PDF catalogeaise•P downloadedadr |
rating andfrom!theCAUTIONwebsite(oforMurataorage,s Manufacturingating,ope |
rating,co., ltdsoldTherefore,ring,. |
mounit’singspecificationsnd handling)areinsubjecthis catalochangeto to preventor oursmproductsking and/orin it mayburning,be discontinuedtc. |
without advance notice. Please check with our |
C02E.pdf |
||
|
sales |
or |
|
. |
|
|
|
||
|
!Note |
|
|
|
|
|
|
||
|
|
|
representativess• Th catalogproductnlyhas engineerscaltyp |
spbeforecificatorderingons because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. |
|||||
|
|
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. |
07.2.6 |
||||||
Continued from the preceding page.
4. Board Bending Strength for Board Material
(1) Test Method
Solder the chip to the test board. Then bend the board using the method illustrated below, to measure capacitance.
|
Capacitor |
|
45 |
45 |
Supporting |
Base |
||
1.0 |
1.2 |
1.65 |
|
|
|
|
|
40 |
|
|
|
|
|
4.0 |
1.6 |
|
|
100 |
|
ST§•±`: Copper Foil (0.035mm´®ßZWVthick)
: Solder Resist
(2) Test Samples
GRM21 5C/R7/F5 Characteristics T=0.6mm typical
(3) Acceptance Criteria
Products should be determined to be defective if the change in capacitance has exceeded the values specified in Table 4.
Table 4
Characteristics |
Change in Capacitance |
5C |
Within T5% or T0.5pF, whichever is greater |
R7 |
Within T12.5% |
F5 |
Within T20% |
(4) Results
|
GRM21 5C (T=0.6) |
|
|||
|
100 |
|
|
Paper Phenol |
|
|
|
|
|
||
(%) |
80 |
|
|
,QRSUVY]^¢£§¶ß™ÆØ |
|
|
|
|
|
||
Rate |
60 |
Glass Epoxy |
|
|
|
|
|
|
|||
Survival |
40 |
|
|
|
|
20 |
|
|
|
||
|
0 |
|
|
|
|
|
|
|
|
|
|
|
0 |
2 |
4 |
WXZ[\®©´¨ |
8 |
|
6 |
||||
Flexure (mm)
|
GRM21 F5 (T=0.6) |
|
|
||
|
100 |
|
|
|
|
(%) |
80 |
|
|
Paper Phenol |
|
|
|
|
|
||
|
|
|
|
|
|
Rate |
60 |
|
|
|
|
|
|
|
|
|
|
Survival |
40 |
|
|
|
|
20 |
Glass Epoxy |
|
|
|
|
|
|
|
|
||
|
0 |
|
|
|
|
|
0 |
2 |
4 |
6 |
8 |
Flexure (mm)
Reference Data
20 |
50 |
Pressurizing |
|
|
|
|
Speed : 1.0mm/sec. |
|
|
|
|
|
|
Pressurize |
|
R230
Note : Material of the pressurizing jig and
the supporting base must be hardened steel (Hardness : HB183 to 255 or carbide Hardness
: HRA90 min.)
Flexure
Capacitance Meter
Solder Amount
Up to Chip
Thickness
(in mm)
13
|
GRM21 R7 (T=0.6) |
|
|
|||
|
100 |
|
|
|
|
|
|
80 |
|
|
|
Paper Phenol |
|
(%) |
|
|
|
|
|
|
|
|
|
|
|
|
|
Rate |
60 |
|
|
|
|
|
|
|
|
|
|
|
|
Survival |
40 |
|
|
|
|
|
20 |
Glass Epoxy |
|
|
|
||
|
|
|
|
|
||
|
0 |
|
|
|
|
|
|
0 |
2 |
|
4 |
6 |
8 |
|
|
|
|
TWXZ[\`•®©´¨±,QRSUVY]^¢£§¶ß™ÆØ |
|
|
|
|
|
|
|
|
|
|
|
|
Flexure (mm) |
|
|
|
Continued on the following page. 
95
! |
Note |
• This PDF catalogeaise•P downloadedadr |
rating andfrom!theCAUTIONwebsite(oforMurataorage,s Manufacturingating,ope |
rating,co., ltdsoldTherefore,ring,. |
mounit’singspecificationsnd handling)areinsubjecthis catalochangeto to preventor oursmproductsking and/orin it mayburning,be discontinuedtc. |
without advance notice. Please check with our |
C02E.pdf |
||
|
sales |
or |
|
. |
|
|
|
||
|
!Note |
|
|
|
|
|
|
||
|
|
|
representativess• Th catalogproductnlyhas engineerscaltyp |
spbeforecificatorderingons because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. |
|||||
|
|
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. |
07.2.6 |
||||||
Reference Data
Continued from the preceding page.
5. Break Strength
(1) Test Method
Place the chip on a steel plate as illustrated on the right. Increase load applied to a point near the center of the test sample.
(2) Test Samples
GRM21 5C/R7/F5 Characteristics
GRM31 5C/R7/F5 Characteristics
(3) Acceptance Criteria
Define the load that has caused the chip to break or crack, as the bending force.
|
(4) Explanation |
|
|
|
|
|
|
|
|
|
|
|
|
||||
|
Break strength, P, is proportionate to the square of the |
||||||||||||||||
|
thickness of the ceramic element and is expressed as a |
||||||||||||||||
|
curve of secondary degree. |
|
|
|
|
|
|
|
|
||||||||
|
The formula is: |
|
|
|
|
|
|
|
|
|
|
|
|
||||
|
P= |
2γ WT2 |
|
(N) |
|
|
|
|
|
|
|
|
|||||
|
3L |
|
|
|
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|
||||||||
|
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|
||||
|
W: Width of ceramic element |
(mm) |
|
|
|
|
|
||||||||||
|
T: Thickness of element |
(mm) |
|
|
|
|
|
||||||||||
|
L: Distance between fulcrums |
(mm) |
|
|
|
|
|
||||||||||
|
γ: Bending stress |
|
|
|
|
(N/mm2) |
|
|
|
|
|||||||
|
(5) Results |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
13 |
|
|
|
GRM21 |
|
|
|
|
|
|
|
|
|||||
|
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|
|||||||
|
|
140 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(N) |
120 |
|
|
|
|
|
|
5C |
|
R7 |
|
F5 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||||
|
|
Strength |
100 |
|
|
|
|
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|
|
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|
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|
|
||
|
|
80 |
|
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|
|
|
|
|
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|
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|
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||
|
|
-break |
|
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|
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|
60 |
|
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||
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|
Bending |
40 |
|
|
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|
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|
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||
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|
20 |
|
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||
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|
0 |
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|
|
0.4 |
|
0.8 |
|
1.2 |
1.6 |
|||||||
|
|
|
0 |
|
|
|
|||||||||||
|
|
|
|
|
|
|
Thickness of Ceramic Element (mm) |
|
|
||||||||
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
6. Thermal Shock
(1) Test method
After applying flux (an ethanol solution of 25% rosin), dip the chip in a solder bath (6Z4 eutectic solder) in accordance with the following
conditions:
(2) Test samples
GRM21 5C/R7/F5 Characteristics T=0.6mm typical
(3) Acceptance criteria
Visually inspect the test sample with a 60-power optical microscope. Chips exhibiting breaks or cracks should be determined to be defective.
Storage |
|
P Pressurizing |
Loading Jig End |
|
Amplifier |
speed : 2.5mm/sec. |
φ1.0mm |
||
scope |
||||
|
||||
|
Load cell |
|
||
|
|
Sample |
|
|
|
|
Steel plate |
P0.5mm |
|
W |
γ |
|
|
|
|
|
|
|
|
|
Chip Size |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
L |
W 5C |
R7 |
F5 |
||
|
|
|
|
|
|
|
|
T |
|
|
Charac- |
Charac- |
Charac- |
|
|
|
|
|
|
|
|
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|
|||||
|
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|
teristics |
teristics |
teristics |
||
|
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|
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|
|||
|
|
L |
|
|
|
|
|
|
GRM21 |
1.5 |
1.2 |
300 |
180 |
160 |
|
|
|
|
|
|
|
|
|
GRM31 |
2.7 |
1.5 |
|||
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|||
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|
|
(in mm)
GRM31
(N) |
140 |
|
|
|
|
|
|
|
|
|
|
|
|
120 |
|
|
|
|
|
5C |
|
|
|
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|
||
Strength |
|
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|
|
|
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|
||
100 |
|
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|
R7 |
|
F5 |
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
||
|
80 |
|
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|
|
break- |
|
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|
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|
|
|
|
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|
60 |
|
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|
|
|
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|
Bending |
|
|
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|
|
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|
40 |
|
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20 |
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0 |
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|
0.4 |
0.8 |
|
|
|
1.2 |
1.6 |
|||||
|
0 |
|
|
|
|||||||||
Thickness of Ceramic Element (mm)
|
|
|
|
|
|
Chip Capacitor |
Temperature |
|
|
|
|
Temperature |
||
|
|
|
|
|
|
|
||||||||
|
|
|
Dipping Speed : 25mm/sec. |
|
|
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|||
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Solder |
||
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T |
|
Natural |
|
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Solder Bath |
|
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|
Cooling |
|
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25D |
|
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||
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2 sec. |
Time |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Continued on the following page. 
96
! |
Note |
• This PDF catalogeaise•P downloadedadr |
rating andfrom!theCAUTIONwebsite(oforMurataorage,s Manufacturingating,ope |
rating,co., ltdsoldTherefore,ring,. |
mounit’singspecificationsnd handling)areinsubjecthis catalochangeto to preventor oursmproductsking and/orin it mayburning,be discontinuedtc. |
without advance notice. Please check with our |
C02E.pdf |
||
|
sales |
or |
|
. |
|
|
|
||
|
!Note |
|
|
|
|
|
|
||
|
|
|
representativess• Th catalogproductnlyhas engineerscaltyp |
spbeforecificatorderingons because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. |
|||||
|
|
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. |
07.2.6 |
||||||
Continued from the preceding page.
(4) Results
7. Solder Heat Resistance
(1) Test Method
qReflow soldering:
Apply about 300 m of solder paste over the alumina substrate. After reflow soldering, remove the chip and check for leaching that may have occurred on the
outer electrode.
wFlow soldering:
After dipping the test sample with a pair of tweezers in wave solder (eutectic solder), check for leaching that may have occurred on the outer electrode.
(2)Test samples
GRM21: For flow/reflow soldering T=0.6mm
(3) Acceptance criteria
The starting time of leaching should be defined as the time when the outer electrode has lost 25% of the total edge length of A-B-C-D as illustrated:
(4) Results
Reflow Soldering
D) |
280 |
|
|
|
|
|
|
|
|
( |
270 |
|
|
|
|
|
|
|
|
Temperature |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
260 |
|
|
|
|
|
|
|
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|
|
|
|
|
|
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|
250 |
|
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|
240 |
|
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|
Soldering |
230 |
|
|
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|
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||
220 |
|
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|
|
210 |
|
|
|
|
|
|
|
|
|
0 |
60 |
120 |
180 |
240 |
||||
Leaching Starting Time (sec.)
Dip Soldering
D) |
280 |
|
|
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|
( |
270 |
|
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|
Temperature |
|
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||
260 |
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250 |
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240 |
|
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|
|
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|
|
|
|
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|
Soldering |
230 |
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|
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|
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|
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||
220 |
|
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210 |
|
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0 |
10 |
20 |
30 |
40 |
50 |
60 |
||||||
Leaching Starting Time (sec.)
Reference Data
(%) |
100 |
|
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|
80 |
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Cracks |
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|
60 |
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||
of |
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F5 |
Incidence |
40 |
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||
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20 |
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R7 |
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5C |
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0 |
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200 |
240 |
280 |
|
320 |
360 |
|||||
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Temperature Differential |
T (D) |
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eDip soldering:
After dipping the test sample with a pair of tweezers in static solder (eutectic solder), check for leaching that
may have occurred on the outer electrode.
r Flux to be used: An ethanol solution of 25% rosin.
A
B |
13 |
|
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D |
C |
|
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Outer Electrode |
Flow Soldering
D) |
280 |
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( |
270 |
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Temperature |
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||
260 |
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250 |
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240 |
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|
Soldering |
230 |
|
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||
220 |
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210 |
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0 |
10 |
20 |
30 |
40 |
50 |
60 |
||||||
Leaching Starting Time (sec.)
Continued on the following page. 
97
! |
Note |
• This PDF catalogeaise•P downloadedadr |
rating andfrom!theCAUTIONwebsite(oforMurataorage,s Manufacturingating,ope |
rating,co., ltdsoldTherefore,ring,. |
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without advance notice. Please check with our |
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sales |
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||
|
!Note |
|
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|
representativess• Th catalogproductnlyhas engineerscaltyp |
spbeforecificatorderingons because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. |
|||||
|
|
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. |
07.2.6 |
||||||
Reference Data
Continued from the preceding page.
8.Thermal Shock when Making Corrections with a Soldering Iron
(1) Test Method
Apply a soldering iron meeting the conditions below to the soldered joint of a chip that has been soldered to a paper phenol board, while supplying wire solder. (Note: the soldering iron tip should not directly touch the ceramic element of the chip.)
(2) Test Samples
GRM21 5C/R7/F5 Characteristics T=0.6mm
(3) Acceptance Criteria for Defects
Observe the appearance of the test sample with a 60-power optical microscope. Those units displaying any breaks or cracks are determined to be defective.
(4) Results
|
|
|
GRM21 5C (T=0.6) |
|
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||||
|
(%) |
100 |
|
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|
80 |
|
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Cracksof |
|
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|
60 |
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Incidence |
40 |
|
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||
|
20 |
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0 |
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|
200 |
240 |
280 |
320 |
|
360 |
|||||
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|
Soldering Iron Tip Temperature (D) |
|
|
||||||
13 |
|
|
GRM21 F5 (T=0.6) |
|
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||||
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|||||
|
(%) |
100 |
|
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|
80 |
|
|
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|
Cracksof |
|
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||
|
60 |
|
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|
|
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|
|
|
|
|
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|
Incidence |
40 |
|
|
|
|
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|
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|
|
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|
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|
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|
|
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||
|
20 |
|
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0 |
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|
200 |
240 |
280 |
320 |
|
360 |
|||||
|
|
|
|
Soldering Iron Tip Temperature (D) |
|
|
||||||
|
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|
|
Wire Solder |
Soldering lron |
Mounting Solder |
|
|
Duration of |
|
Touching : |
|
Approx. 3 sec. |
Paper Phenol Substrate
Soldering Iron |
Tip diameter |
Ceramic heater 20W |
φ3mm |
GRM21 R7 (T=0.6)
(%) |
100 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
||
80 |
|
|
|
|
|
|
|
|
|
|
Cracksof |
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
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|
||
60 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Incidence |
40 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
20 |
|
|
|
|
|
|
|
|
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|
|
|
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|
0 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
200 |
240 |
280 |
320 |
360 |
|||||
Soldering Iron Tip Temperature (D)
98
