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MOTOROLA

SEMICONDUCTOR

TECHNICAL DATA

225 mW SOT-23

Zener Voltage Regulator Diodes

GENERAL DATA APPLICABLE TO ALL SERIES IN THIS GROUP

Zener Voltage Regulator Diodes

Manufacturing Locations:

WAFER FAB: Phoenix, Arizona

ASSEMBLY: Seremban, Malaysia

TEST: Seremban, Malaysia

MAXIMUM CASE TEMPERATURE FOR SOLDERING

PURPOSES: 260°C for 10 seconds

THERMAL CHARACTERISTICS

Characteristic	Symbol	Max	Unit

Total Device Dissipation FR-5 Board,*	PD	225	mW
TA = 25°C
Derate above 25°C		1.8	mW/°C

Thermal Resistance Junction to Ambient	RθJA	556	°C/W
Total Device Dissipation	PD	300	mW
Alumina Substrate,** TA = 25°C
Derate above 25°C		2.4	mW/°C

Thermal Resistance Junction to Ambient	RθJA	417	°C/W
Junction and Storage Temeprature	TJ, Tstg	150	°C

GENERAL

DATA

225 mW SOT-23


3		1
Cathode		Anode

CASE 318-07, STYLE 8

SOT-23 (TO-236AB)

PLASTIC

*FR-5 = 1.0 x 0.75 x 0.62 in.

**Alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina.

Motorola TVS/Zener Device Data	225 mW SOT-23 Data Sheet
	7-139

GENERAL DATA Ð 225 mW SOT-23

TYPICAL CHARACTERISTICS

(mV/°C)	8										(mV/°C)	100
	7	TYPICAL TC VALUES
	6	TYPICAL TC VALUES
		FOR MMBZ5221BLT1 SERIES
COEFFICIENT		FOR MMBZ5221BLT1 SERIES									COEFFICIENT
	5
	4							VZ @ IZT
	3							VZ @ IZT
	3											10

TEMPERATURE	2										TEMPERATURE
	2
	1
	0
	±1
,											,
VZ	± 2										VZ
θ	± 2										θ
θ											θ
	± 3	3	4	5	6	7	8	9	10	11	12	1
	2	3	4	5	6	7	8	9	10	11	12
				VZ, NOMINAL ZENER VOLTAGE (V)

	TYPICAL TC VALUES
	FOR MMBZ5221BLT1 SERIES
	VZ @ IZT
10	100

VZ, NOMINAL ZENER VOLTAGE (V)

Figure 1. Temperature Coefficients	Figure 2. Temperature Coefficients
(Temperature Range ± 55°C to +150°C)	(Temperature Range ± 55°C to +150°C)

	1000					1000
			TJ = 25°C					75 V (MMBZ5267BLT1)
)			IZ(AC) = 0.1 IZ(DC)		CURRENT(mA)			91 V (MMBZ5270BLT1)
IMPEDANCE(Ω		IZ = 1 mA	f = 1 kHz
IMPEDANCE(Ω	100					100
	100					100
DYNAMIC,		5 mA			FORWARD
DYNAMIC,		20 mA			FORWARD
		20 mA
	10					10
ZT					F
					,
Z					I
							150°C	75°C	25°C	0°C
	1	1	10	100		1	0.5	0.6	0.7	0.8	0.9	1.0	1.1	1.2
		1	10	100		0.4	0.5	0.6	0.7	0.8	0.9	1.0	1.1	1.2
			VZ, NOMINAL ZENER VOLTAGE						VF, FORWARD VOLTAGE (V)

Figure 3. Effect of Zener Voltage on

Figure 4. Typical Forward Voltage

Zener Impedance

225 mW SOT-23 Data Sheet

Motorola TVS/Zener Device Data

7-140

GENERAL DATA Ð 225 mW SOT-23

		TYPICAL CHARACTERISTICS
	1000				1000
		0 V BIAS	TA = 25°C		100
		0 V BIAS		A)	100
		1 V BIAS		A)	10
		1 V BIAS		μ
C, CAPACITANCE (pF)				μ
				, LEAKAGE CURRENT (
	100				1
					1
		BIAS AT			0.1							+150°C
		BIAS AT			0.1
		50% OF VZ NOM			0.01
	10				0.01
	10											+ 25°C
					0.001							+ 25°C
				R	0.001
				R
				I								± 55°C
					0.0001							± 55°C
					0.0001
	1	10	100	0.00001		10	20	30	40	50	60	70	80	90
	1	10	100		0	10	20	30	40	50	60	70	80	90
		VZ, NOMINAL ZENER VOLTAGE (V)						VZ, NOMINAL ZENER VOLTAGE (V)

Figure 5. Typical Capacitance

Figure 6. Typical Leakage Current

	100
(mA)CURRENT	1						T	A = 25	°C



, ZENER	10


















Z	0.1
Z
I
I
	0.01





		0	2	4	6	8	10			12

VZ, ZENER VOLTAGE (V)

I Z , ZENER CURRENT (mA)

100

TA = 25°C

0.1

0.0110

VZ, ZENER VOLTAGE (V)

Figure 7. Zener Voltage versus Zener Current	Figure 8. Zener Voltage versus Zener Current
(VZ Up to 12 V)	(12 V to 91 V)

Motorola TVS/Zener Device Data	225 mW SOT-23 Data Sheet
	7-141

GENERAL DATA Ð 225 mW SOT-23

ELECTRICAL CHARACTERISTICS (Pinout: 1-Anode, 2-NC, 3-Cathode) (VF = 0.9 V Max @ IF = 10 mA for all types)

		Zener Voltage				Max Zener			Max		Zener Voltage		Max Zener		Zener Voltage		Max Zener
		VZ1 (Volts)				Impedance		Reverse			VZ2 (Volts)		Impedance		VZ3 (Volts)		Impedance		dVZ/dt		C pF
		@ IZT1 = 5 mA				Z		Leakage			@ IZT2 = 1 mA		Z		@ IZT3 = 20 mA		Z		(mV/k)		C pF
			(Note 1)			ZT1		Current			(Note 1)		ZT2		(Note 1)		ZT3		@ IZT1 = 5 mA		Max
			(Note 1)			(Ohms)		Current			(Note 1)		(Ohms)		(Note 1)		(Ohms)		@ IZT1 = 5 mA		Max
Type						@ I	=	IR		V			@ I	=			@ I	=			@ VR = 0
Number	Marking	Nom		Min	Max	ZT1		μ	@	R	Min	Max	ZT2		Min	Max	ZT3		Min	Max	f = 1 MHz
Number	Marking	Nom		Min	Max	5 mA		A		Volts	Min	Max	1 mA		Min	Max	20 mA		Min	Max
BZX84C2V4LT1	Z11	2.4		2.2	2.6	100		50		1	1.7	2.1	600		2.6	3.2	50		±3.5	0	450
BZX84C2V7LT1	Z12	2.7		2.5	2.9	100		20		1	1.9	2.4	600		3	3.6	50		±3.5	0	450
BZX84C3V0LT1	Z13	3		2.8	3.2	95		10		1	2.1	2.7	600		3.3	3.9	50		±3.5	0	450
BZX84C3V3LT1	Z14	3.3		3.1	3.5	95		5		1	2.3	2.9	600		3.6	4.2	40		±3.5	0	450
BZX84C3V6LT1	Z15	3.6		3.4	3.8	90		5		1	2.7	3.3	600		3.9	4.5	40		±3.5	0	450

BZX84C3V9LT1	Z16	3.9		3.7	4.1	90		3		1	2.9	3.5	600		4.1	4.7	30		±3.5	±2.5	450
BZX84C4V3LT1	W9	4.3		4	4.6	90		3		1	3.3	4	600		4.4	5.1	30		±3.5	0	450
BZX84C4V7LT1	Z1	4.7		4.4	5	80		3		2	3.7	4.7	500		4.5	5.4	15		±3.5	0.2	260
BZX84C5V1LT1	Z2	5.1		4.8	5.4	60		2		2	4.2	5.3	480		5	5.9	15		±2.7	1.2	225
BZX84C5V6LT1	Z3	5.6		5.2	6	40		1		2	4.8	6	400		5.2	6.3	10		±2.0	2.5	200

BZX84C6V2LT1	Z4	6.2		5.8	6.6	10		3		4	5.6	6.6	150		5.8	6.8	6		0.4	3.7	185
BZX84C6V8LT1	Z5	6.8		6.4	7.2	15		2		4	6.3	7.2	80		6.4	7.4	6		1.2	4.5	155
BZX84C7V5LT1	Z6	7.5		7	7.9	15		1		5	6.9	7.9	80		7	8	6		2.5	5.3	140
BZX84C8V2LT1	Z7	8.2		7.7	8.7	15		0.7		5	7.6	8.7	80		7.7	8.8	6		3.2	6.2	135
BZX84C9V1LT1	Z8	9.1		8.5	9.6	15		0.5		6	8.4	9.6	100		8.5	9.7	8		3.8	7.0	130

BZX84C10LT1	Z9	10		9.4	10.6	20		0.2		7	9.3	10.6	150		9.4	10.7	10		4.5	8.0	130
BZX84C11LT1	Y1	11		10.4	11.6	20		0.1		8	10.2	11.6	150		10.4	11.8	10		5.4	9.0	130
BZX84C12LT1	Y2	12		11.4	12.7	25		0.1		8	11.2	12.7	150		11.4	12.9	10		6.0	10.0	130
BZX84C13LT1	Y3	13		12.4	14.1	30		0.1		8	12.3	14	170		12.5	14.2	15		7.0	11.0	120
BZX84C15LT1	Y4	15		13.8	15.6	30		0.05		10.5	13.7	15.5	200		13.9	15.7	20		9.2	13.0	110

BZX84C16LT1	Y5	16		15.3	17.1	40		0.05		11.2	15.2	17	200		15.4	17.2	20		10.4	14.0	105
BZX84C18LT1	Y6	18		16.8	19.1	45		0.05		12.6	16.7	19	225		16.9	19.2	20		12.4	16.0	100
BZX84C20LT1	Y7	20		18.8	21.2	55		0.05		14	18.7	21.1	225		18.9	21.4	20		14.4	18.0	85
BZX84C22LT1	Y8	22		20.8	23.3	55		0.05		15.4	20.7	23.2	250		20.9	23.4	25		16.4	20.0	85
BZX84C24LT1	Y9	24		22.8	25.6	70		0.05		16.8	22.7	25.5	250		22.9	25.7	25		18.4	22.0	80

													ZZT2
						ZZT1							Below				ZZT3
						Below							@ IZT4 =				Below		dVZ/dt
		VZ1 Below				@ IZT1 =					VZ2 Below		0.5 mA		VZ3 Below		@ IZT3 =		(mV/k) Below
		@ IZT1 = 2 mA				2 mA					@ IZT2 = 0.1 mA		(Note 2)		@ IZT3 = 10 mA		10 mA		@ IZT1 = 2 mA
BZX84C27LT1	Y10	27		25.1	28.9	80		0.05		18.9	25	28.9	300		25.2	29.3	45		21.4	25.3	70
BZX84C30LT1	Y11	30		28	32	80		0.05		21	27.8	32	300		28.1	32.4	50		24.4	29.4	70
BZX84C33LT1	Y12	33		31	35	80		0.05		23.1	30.8	35	325		31.1	35.4	55		27.4	33.4	70
BZX84C36LT1	Y13	36		34	38	90		0.05		25.2	33.8	38	350		34.1	38.4	60		30.4	37.4	70
BZX84C39LT1	Y14	39		37	41	130		0.05		27.3	36.7	41	350		37.1	41.5	70		33.4	41.2	45

BZX84C43LT1	Y15	43		40	46	150		0.05		30.1	39.7	46	375		40.1	46.5	80		37.6	46.6	40
BZX84C47LT1	Y16	47		44	50	170		0.05		32.9	43.7	50	375		44.1	50.5	90		42.0	51.8	40
BZX84C51LT1	Y17	51		48	54	180		0.05		35.7	47.6	54	400		48.1	54.6	100		46.6	57.2	40
BZX84C56LT1	Y18	56		52	60	200		0.05		39.2	51.5	60	425		52.1	60.8	110		52.2	63.8	40
BZX84C62LT1	Y19	62		58	66	215		0.05		43.4	57.4	66	450		58.2	67	120		58.8	71.6	35

BZX84C68LT1	Y20	68		64	72	240		0.05		47.6	63.4	72	475		64.2	73.2	130		65.6	79.8	35
BZX84C75LT1	Y21	75		70	79	255		0.05		52.5	69.4	79	500		70.3	80.2	140		73.4	88.6	35

NOTES: 1. Zener voltage is measured with a pulse test current (IZ) applied at an ambient temperature of 25°C.

2. The zener impedance, ZZT2, for the 27 through 75 volt types is tested at 0.5 mA rather than the test current of 0.1 mA used for VZ2.

225 mW SOT-23 Data Sheet	Motorola TVS/Zener Device Data
7-142

GENERAL DATA Ð 225 mW SOT-23

Zener Voltage Regulator Diodes Ð Surface Mounted

225 mW SOT-23

NOTES:

1.DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.

2.CONTROLLING DIMENSION: INCH.

3.MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS. MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL.

	A
	L
	3	S
	B	S
1	2
V	G

	INCHES		MILLIMETERS
DIM	MIN	MAX	MIN	MAX
A	0.1102	0.1197	2.80	3.04
B	0.0472	0.0551	1.20	1.40
C	0.0350	0.0440	0.89	1.11
D	0.0150	0.0200	0.37	0.50
G	0.0701	0.0807	1.78	2.04
H	0.0005	0.0040	0.013	0.100
J	0.0034	0.0070	0.085	0.177
K	0.0180	0.0236	0.45	0.60
L	0.0350	0.0401	0.89	1.02
S	0.0830	0.0984	2.10	2.50
V	0.0177	0.0236	0.45	0.60

STYLE 8:

PIN 1. ANODE

2.NO CONNECTION

3.CATHODE

		C
D	H	K	J

CASE 318-07

PLASTIC

0.037

0.037 0.95

0.95

0.079

2.0

0.035

0.9

0.031

inches

0.8mm

SOT-23 Footprint

(Refer to Section 10 for Surface Mount, Thermal Data and Footprint Information.)

MULTIPLE PACKAGE QUANTITY (MPQ)

REQUIREMENTS

Package Option	Type No. Suffix	MPQ (Units)

Tape and Reel	T1	3K

Tape and Ammo	T3	10K

(Refer to Section 10 for more information on Packaging Specifications.)

Motorola TVS/Zener Device Data	225 mW SOT-23 Data Sheet
	7-143

GENERAL DATA Ð 225 mW SOT-23

ELECTRICAL CHARACTERISTICS (Pinout: 1-Anode, 2-NC, 3-Cathode) (VF = 0.9 V Max @ IF = 10 mA for all types.)

			Zener
		Test	Voltage	ZZK	ZZT	Max
		Current	VZ (± 5%)	ZZK	IZ = IZT	Max	@	VR
		IZT	Nominal	IZ = 0.25 mA	@ 10% Mod	IR	@	VR
Device	Marking	mA	(Note 1)	Ω Max	Ω Max	μA		V

MMBZ5221BLT1	18A	20	2.4	1200	30	100		1
MMBZ5222BLT1	18B	20	2.5	1250	30	100		1
MMBZ5223BLT1	18C	20	2.7	1300	30	75		1
MMBZ5224BLT1	18D	20	2.8	1400	30	75		1
MMBZ5225BLT1	18E	20	3	1600	29	50		1

MMBZ5226BLT1	8A	20	3.3	1600	28	25		1
MMBZ5227BLT1	8B	20	3.6	1700	24	15		1
MMBZ5228BLT1	8C	20	3.9	1900	23	10		1
MMBZ5229BLT1	8D	20	4.3	2000	22	5		1
MMBZ5230BLT1	8E	20	4.7	1900	19	5		2

MMBZ5231BLT1	8F	20	5.1	1600	17	5		2
MMBZ5232BLT1	8G	20	5.6	1600	11	5		3
MMBZ5233BLT1	8H	20	6	1600	7	5		3.5
MMBZ5234BLT1	8J	20	6.2	1000	7	5		4
MMBZ5235BLT1	8K	20	6.8	750	5	3		5

MMBZ5236BLT1	8L	20	7.5	500	6	3		6
MMBZ5237BLT1	8M	20	8.2	500	8	3		6.5
MMBZ5238BLT1	8N	20	8.7	600	8	3		6.5
MMBZ5239BLT1	8P	20	9.1	600	10	3		7
MMBZ5240BLT1	8Q	20	10	600	17	3		8

MMBZ5241BLT1	8R	20	11	600	22	2		8.4
MMBZ5242BLT1	8S	20	12	600	30	1		9.1
MMBZ5243BLT1	8T	9.5	13	600	13	0.5		9.9
MMBZ5244BLT1	8U	9	14	600	15	0.1		10
MMBZ5245BLT1	8V	8.5	15	600	16	0.1		11

MMBZ5246BLT1	8W	7.8	16	600	17	0.1		12
MMBZ5247BLT1	8X	7.4	17	600	19	0.1		13
MMBZ5248BLT1	8Y	7	18	600	21	0.1		14
MMBZ5249BLT1	8Z	6.6	19	600	23	0.1		14
MMBZ5250BLT1	81A	6.2	20	600	25	0.1		15

MMBZ5251BLT1	81B	5.6	22	600	29	0.1		17
MMBZ5252BLT1	81C	5.2	24	600	33	0.1		18
MMBZ5253BLT1	81D	5	25	600	35	0.1		19
MMBZ5254BLT1	81E	4.6	27	600	41	0.1		21
MMBZ5255BLT1	81F	4.5	28	600	44	0.1		21

MMBZ5256BLT1	81G	4.2	30	600	49	0.1		23
MMBZ5257BLT1	81H	3.8	33	700	58	0.1		25
MMBZ5258BLT1	81J	3.4	36	700	70	0.1		27
MMBZ5259BLT1	81K	3.2	39	800	80	0.1		30
MMBZ5260BLT1	18F	3	43	900	93	0.1		33

MMBZ5261BLT1	81M	2.7	47	1000	105	0.1		36
MMBZ5262BLT1	81N	2.5	51	1100	125	0.1		39
MMBZ5263BLT1	81P	2.2	56	1300	150	0.1		43
MMBZ5264BLT1	81Q	2.1	60	1400	170	0.1		46
MMBZ5265BLT1	81R	2	62	1400	185	0.1		47

MMBZ5266BLT1	81S	1.8	68	1600	230	0.1		52
MMBZ5267BLT1	81T	1.7	75	1700	270	0.1		56
MMBZ5268BLT1	81U	1.5	82	2000	330	0.1		62
MMBZ5269BLT1	81V	1.4	87	2200	370	0.1		68
MMBZ5270BLT1	81W	1.4	91	2300	400	0.1		69

NOTE 1. Zener voltage is measured with a pulse test current (IZT) applied at an ambient temperature of 25°C.

225 mW SOT-23 Data Sheet	Motorola TVS/Zener Device Data
7-144

MOTOROLA

SEMICONDUCTOR

TECHNICAL DATA

Designer's Data Sheet	MMSZ5221BT1-
	MMSZ5270BT1*
Surface Mount Silicon Zener Diodes
	MMSZ4678T1-
Plastic SOD%123 Package	MMSZ4717T1
Three complete series of Zener Diodes are offered in the convenient, surface mount	MMSZ2V4T1-
	MMSZ75T1
plastic SOD-123 package. These devices provide a convenient alternative to the leadless	MMSZ75T1

34 package style.	*Motorola Preferred Device Series
	*Motorola Preferred Device Series
• 500 mW Rating on FR-4 or FR-5 Board
• 500 mW Rating on FR-4 or FR-5 Board
• Package Designed for Optimal Automated Board Assembly
• Corrosion Resistant Finish, Easily Solderable	PLASTIC SURFACE
• ESD Rating of Class 3 (exceeding 16 kV) per the Human Body Model		MOUNT
• Small Package Size for High Density Applications	ZENER DIODES
• Available in 8 mm Tape and Reel	500 MILLIWATTS
Add ªT1º to the device number to order the 7 inch/3000 unit reel.	1.8 ± 91 VOLTS

Add ªT3º to the device number to order the 13 inch/10,000 unit reel.

• Wafer Fab Location: Phoenix, Arizona
• Wafer Fab Location: Phoenix, Arizona
Assembly/Test Location: Seremban, Malaysia	1		2
MMSZ5221BT1 thru MMSZ5270BT1

		1: CATHODE
		1: CATHODE
• General Purpose, Medium Current		2: ANODE
• Wide Voltage Range Ð 2.4 to 91 Volts

MMSZ4678T1 thru MMSZ4717T1

•Low Operating Currents, Low Leakage, Sharp Breakdown Characteristics

•Wide Voltage Range Ð 1.8 to 43 Volts

MMSZ2V4T1 thru MMSZ75T1

•Specified Similar to European BZV55C Series

•Wide Voltage Range Ð 2.4 to 75 Volts

CASE 425, STYLE 1

PLASTIC

DEVICE RATING (TA = 25°C unless otherwise noted)

Rating	Symbol	Value	Unit

Power Dissipation on FR-4 or FR-5 Board [1]	PD	500	mW
Derate above TL = 75°C	Ð	6.7	mW/°C
Thermal Resistance Junction to Lead [2]	RθJL	150	°C/W
Thermal Resistance Junction to Ambient [2]	RθJA	340	°C/W
Thermal Resistance Junction to Ambient [2]	RθJA	340
Junction Temperature Range	TJ	±55 to +150	°C
Storage Temperature Range	Tstg	±55 to +150	°C
Lead Solder Temperature ± Maximum (10 sec. duration)	Ð	260	°C

[1]FR-4 or FR-5 = 3.5 x 1.5 inches, using the Motorola minimum recommended footprint as shown in Figure 11.

[2]Thermal Resistance measurement obtained via Infrared Scan Method

Designer's Data for ªWorst Case'' Conditions Ð The Designer's Data Sheet permits the design of most circuits entirely from the information presented. Limit curves Ð representing boundaries on device characteristics Ð are given to facilitate ªworst case'' design.

Designer's is a trademark of Motorola, Inc.

Thermal Clad is a trademark of the Bergquist Company.

Preferred devices are Motorola recommended choices for future use and best overall value.

Motorola TVS/Zener Device Data	500 mW Leadless (SOD-123) Data Sheet
	7-145

MMSZ5221BT1, MMSZ4678T1, MMSZ2V4T1 Series

TYPICAL CHARACTERISTICS

(mV/°C)	8										(mV/°C)	100
	7	TYPICAL TC VALUES
	6	TYPICAL TC VALUES
		FOR MMSZ5221BT1 SERIES
COEFFICIENT		FOR MMSZ5221BT1 SERIES									COEFFICIENT
	5
	4							VZ @ IZT
	3							VZ @ IZT
	3											10

TEMPERATURE	2										TEMPERATURE
	2
	1
	0
	±1
,											,
VZ	± 2										VZ
θ	± 2										θ
θ											θ
	± 3	3	4	5	6	7	8	9	10	11	12	1
	2	3	4	5	6	7	8	9	10	11	12
				VZ, NOMINAL ZENER VOLTAGE (V)

	TYPICAL TC VALUES
	FOR MMSZ5221BT1 SERIES
	VZ @ IZT
10	100

VZ, NOMINAL ZENER VOLTAGE (V)

Figure 1. Temperature Coefficients	Figure 2. Temperature Coefficients
(Temperature Range ± 55°C to +150°C)	(Temperature Range ± 55°C to +150°C)

PD, POWER DISSIPATION (WATTS)

1.2
1.2
1.0
1.0				PD versus T
0.8				PD versus T		L
0.6
0.6		PD versus TA
		PD versus TA
0.4
0.4
0.2
0.2
0
0	0	25	50		75		100	125	150
				T, TEMPERATURE (°C)

	1000
(WATTS)				RECTANGULAR
(WATTS)				WAVEFORM, TA = 25°C
SURGE POWER	100
SURGE POWER
, PEAK	10
, PEAK
pk
P
	10.1	1	10	100	1000

PW, PULSE WIDTH (ms)

Figure 3. Steady State Power Derating

Figure 4. Maximum Nonrepetitive Surge Power

	1000					1000
			TJ = 25°C					75 V (MMSZ5267BT1)
)			IZ(AC) = 0.1 IZ(DC)		CURRENT(mA)			91 V (MMSZ5270BT1)
IMPEDANCE(Ω		IZ = 1 mA	f = 1 kHz
IMPEDANCE(Ω	100					100
	100					100
DYNAMIC,		5 mA			FORWARD
DYNAMIC,		20 mA			FORWARD
		20 mA
	10					10
ZT					F
					,
Z					I
							150°C	75°C	25°C	0°C
	1	1	10	100		1	0.5	0.6	0.7	0.8	0.9	1.0	1.1	1.2
		1	10	100		0.4	0.5	0.6	0.7	0.8	0.9	1.0	1.1	1.2
			VZ, NOMINAL ZENER VOLTAGE						VF, FORWARD VOLTAGE (V)

	Figure 5. Effect of Zener Voltage on	Figure 6. Typical Forward Voltage
	Zener Impedance

500 mW Leadless (SOD-123) Data Sheet		Motorola TVS/Zener Device Data
7-146

		MMSZ5221BT1, MMSZ4678T1, MMSZ2V4T1 Series
			TYPICAL CHARACTERISTICS
	1000				1000
		0 V BIAS	TA = 25°C		100
		0 V BIAS		A)	100
		1 V BIAS		A)	10
		1 V BIAS		μ
C, CAPACITANCE (pF)				μ
				, LEAKAGE CURRENT (
	100				1
					1
		BIAS AT			0.1							+150°C
		BIAS AT			0.1
		50% OF VZ NOM			0.01
	10				0.01
	10											+ 25°C
					0.001							+ 25°C
				R	0.001
				R
				I								± 55°C
					0.0001							± 55°C
					0.0001
	1	10	100	0.00001		10	20	30	40	50	60	70	80	90
	1	10	100		0	10	20	30	40	50	60	70	80	90
		VZ, NOMINAL ZENER VOLTAGE (V)						VZ, NOMINAL ZENER VOLTAGE (V)

Figure 7. Typical Capacitance

Figure 8. Typical Leakage Current

	100
(mA)CURRENT	1						T	A = 25	°C



, ZENER	10


















Z	0.1
Z
I
I
	0.01





		0	2	4	6	8	10			12

VZ, ZENER VOLTAGE (V)

I Z , ZENER CURRENT (mA)

100

TA = 25°C

0.1

0.0110

VZ, ZENER VOLTAGE (V)

Figure 9. Zener Voltage versus Zener Current	Figure 10. Zener Voltage versus Zener Current
(VZ Up to 12 V)	(12 V to 91 V)

Motorola TVS/Zener Device Data	500 mW Leadless (SOD-123) Data Sheet
	7-147

MMSZ5221BT1, MMSZ4678T1, MMSZ2V4T1 Series

ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted [1]), (VF = 0.9 V Max. @ IF = 10 mA for all types)

		Zener Voltage							Max Reverse
			VZ @ IZT						Max Reverse
			VZ @ IZT			Test	Max Zener		Leakage
				Volts		Test			Leakage
				Volts		Current			Current	Test
			[1] [2]			Current	Impedance [3]		Current	Test
						IZT			IR @ VR	Voltage
Type							ZZT	ZZK		VR
Type							@ IZ = IZT	@ IZK = 0.25 mA
Number	Marking	Nom		Min	Max	mA	Ω	Ω	μA	Volts
MMSZ5221BT1	C1	2.4		2.28	2.52	20	30	1200	100	1
MMSZ5222BT1	C2	2.5		2.38	2.63	20	30	1250	100	1
MMSZ5223BT1	C3	2.7		2.57	2.84	20	30	1300	75	1
MMSZ5224BT1	C4	2.8		2.66	2.94	20	30	1400	75	1
MMSZ5225BT1	C5	3.0		2.85	3.15	20	30	1600	50	1

MMSZ5226BT1	D1	3.3		3.14	3.47	20	28	1600	25	1
MMSZ5227BT1	D2	3.6		3.42	3.78	20	24	1700	15	1
MMSZ5228BT1	D3	3.9		3.71	4.10	20	23	1900	10	1
MMSZ5229BT1	D4	4.3		4.09	4.52	20	22	2000	5	1
MMSZ5230BT1	D5	4.7		4.47	4.94	20	19	1900	5	2

MMSZ5231BT1	E1	5.1		4.85	5.36	20	17	1600	5	2
MMSZ5232BT1	E2	5.6		5.32	5.88	20	11	1600	5	3
MMSZ5233BT1	E3	6.0		5.70	6.30	20	7	1600	5	3.5
MMSZ5234BT1	E4	6.2		5.89	6.51	20	7	1000	5	4
MMSZ5235BT1	E5	6.8		6.46	7.14	20	5	750	3	5

MMSZ5236BT1	F1	7.5		7.13	7.88	20	6	500	3	6
MMSZ5237BT1	F2	8.2		7.79	8.61	20	8	500	3	6.5
MMSZ5238BT1	F3	8.7		8.27	9.14	20	8	600	3	6.5
MMSZ5239BT1	F4	9.1		8.65	9.56	20	10	600	3	7
MMSZ5240BT1	F5	10		9.50	10.50	20	17	600	3	8

MMSZ5241BT1	H1	11		10.45	11.55	20	22	600	2	8.4
MMSZ5242BT1	H2	12		11.40	12.60	20	30	600	1	9.1
MMSZ5243BT1	H3	13		12.35	13.65	9.5	13	600	0.5	9.9
MMSZ5244BT1	H4	14		13.30	14.70	9.0	15	600	0.1	10
MMSZ5245BT1	H5	15		14.25	15.75	8.5	16	600	0.1	11

MMSZ5246BT1	J1	16		15.20	16.80	7.8	17	600	0.1	12
MMSZ5247BT1	J2	17		16.15	17.85	7.4	19	600	0.1	13
MMSZ5248BT1	J3	18		17.10	18.90	7.0	21	600	0.1	14
MMSZ5249BT1	J4	19		18.05	19.95	6.6	23	600	0.1	14
MMSZ5250BT1	J5	20		19.00	21.00	6.2	25	600	0.1	15

MMSZ5251BT1	K1	22		20.90	23.10	5.6	29	600	0.1	17
MMSZ5252BT1	K2	24		22.80	25.20	5.2	33	600	0.1	18
MMSZ5253BT1	K3	25		23.75	26.25	5.0	35	600	0.1	19
MMSZ5254BT1	K4	27		25.65	28.35	4.6	41	600	0.1	21
MMSZ5255BT1	K5	28		26.60	29.40	4.5	44	600	0.1	21

[1]Nominal zener voltage is measured with the device junction in thermal equilibrium at TL = 30°C ± 1°C.

[2]All part numbers shown indicate a VZ tolerance of ±5%.

[3]ZZT and ZZK are measured by dividing the AC voltage drop across the device by the AC current applied. The specified limits are for IZ(AC) = 0.1 IZ(DC), with the AC frequency = 1 kHz.

500 mW Leadless (SOD-123) Data Sheet	Motorola TVS/Zener Device Data
7-148

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