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MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

Order this document by MRF166C/D

The RF MOSFET Line

RF Power

Field Effect Transistors

N±Channel Enhancement Mode MOSFETs

Designed primarily for wideband large±signal output and driver from 30±500 MHz.

•Low Crss Ð 4.5 pF @ V DS = 28 V

•MRF166C Ð Typical Performance at 400 MHz, 28 Vdc Output Power = 20 W

Gain = 17 dB Efficiency = 55%

•Replacement for Industry Standards such as MRF136, DV2820, BLF244, SD1902, and ST1001

•100% Tested for Load Mismatch at all Phase Angles with 30:1 VSWR

•Facilitates Manual Gain Control, ALC and Modulation Techniques

•Excellent Thermal Stability, Ideally Suited for Class A Operation

•Circuit board photomaster available upon request by

contacting RF Tactical Marketing in Phoenix, AZ.

MAXIMUM RATINGS

MRF166C

20 W, 500 MHz

MOSFET

BROADBAND

RF POWER FETs

CASE 319±07, STYLE 3

Rating	Symbol	Value	Unit

Drain±Gate Voltage	VDSS	65	Vdc
Drain±Gate Voltage	VDGR	65	Vdc
(RGS = 1.0 MΩ)
Gate±Source Voltage	VGS	± 40	Adc
Drain Current Ð Continuous	ID	4.0	Adc
Total Device Dissipation @ TC = 25°C	PD	70	Watts
Derate Above 25°C		0.4	W/°C

Storage Temperature Range	Tstg	± 65 to 150	°C
Operating Junction Temperature	TJ	200	°C
THERMAL CHARACTERISTICS

Characteristic	Symbol	Max	Unit

Thermal Resistance, Junction to Case	RθJC	2.5	°C/W

NOTE Ð CAUTION Ð MOS devices are susceptible to damage from electrostatic charge. Reasonable precautions in handling and packaging MOS devices should be observed.

REV 7

Motorola, Inc. 1995

ELECTRICAL CHARACTERISTICS (TC = 25°C unless otherwise noted)

Characteristic	Symbol	Min	Typ	Max	Unit

OFF CHARACTERISTICS

Drain±Source Breakdown Voltage	V(BR)DSS	65		Ð	Ð	V
(VGS = 0 V, ID = 5.0 mA)
Zero Gate Voltage Drain Current	IDSS	Ð		Ð	1.0	mA
(VDS = 28 V, VGS = 0 V)
Gate±Source Leakage Current	IGSS	Ð		Ð	1.0	μA
(VGS = 40 V, VDS = 0 V)
ON CHARACTERISTICS

Gate Threshold Voltage	VGS(th)	1.0		3.0	6.0	V
(VDS = 10 V, ID = 25 mA)
Forward Transconductance	gfs	600		800	Ð	mhos
(VDS = 10 V, ID = 1.5 A)
DYNAMIC CHARACTERISTICS

Input Capacitance	Ciss	Ð		30	Ð	pF
(VDS = 28 V, VGS = 0 V, f = 1.0 MHz)
Output Capacitance	Coss	Ð		35	Ð	pF
(VDS = 28 V, VGS = 0 V, f = 1.0 MHz)
Reverse Transfer Capacitance	Crss	Ð		4.5	Ð	pF
(VDS = 28 V, VGS = 0 V, f = 1.0 MHz)
FUNCTIONAL CHARACTERISTICS

Noise Figure	NF	Ð		2.5	Ð	dB
(VDD = 28 V, f = 30 MHz, IDQ = 50 mA)
Common Source Power Gain	Gps	14		17	Ð	dB
(VDD = 28 V, Pout = 20 W, f = 400 MHz, IDQ = 100 mA)
Drain Efficiency	η	50		55	Ð	%
(VDD = 28 V, Pout = 20 W, f = 400 MHz, IDQ = 100 mA)
Electrical Ruggedness	ψ
(VDD = 28 V, Pout = 20 W, f = 400 MHz, IDQ = 100 mA,	ψ		No Degradation in Output Power
Load VSWR 30:1 at All Phase Angles)

MRF166C	MOTOROLA RF DEVICE DATA
2

C10

RFC1

C11

VDD = 28 V

C13

Vdc

C12

RFC2

RF OUTPUT

RF INPUT

D.U.T.

C1, C7 Ð 270 pF Chip Capacitor

L1 Ð #18 AWG, 2 Turns, 0.25 ″ ID

0.15″

Wide

C2, C6 Ð Johanson Trimmer Capacitor, 2± 20 pF

L2 Ð #18 AWG Hairpin 0.7 ″

long, bend into hairpin

C3 Ð 21 pF Mini Unelco

RFC1 Ð Ferroxcube VK200±19/4B

C4, C8, C9 Ð 0.01 mF

RFC2 Ð 18 Turns #18 AWG Enameled, 0.3 ″ ID

C5 Ð 18 pF Mini Unelco

R1 Ð 220 W 1/2 Watt

C10, C11 Ð 680 pF Feed Through

R2 Ð 1.8 k W 1/4 Watt

C12, C13 Ð 50

mF, 50 V

R3 Ð 10 k W, 10 Turns Bourns

D1 Ð 1N5925A Motorola Zener

R4 Ð 10 k 1/4 Watt

Z1 Ð Microstrip Line 0.150 ″

wide, 0.420″

long

Z2 Ð Microstrip Line 0.150 ″

wide, 0.350″

long

Z3 Ð Microstrip Line 0.150 ″

wide, 0.350″

long

Board Material Ð Teflon fiberglass

Z4 Ð Microstrip Line 0.150 ″

wide, 0.450″

long

2 oz. Copper clad both sides, er = 2.55

Z5 Ð Microstrip Line 0.150 ″

wide, 1.1″ long

0.060″

Dielectric Thickness

Z6 Ð Microstrip Line 0.150 ″

wide, 0.650″

long

Z7 Ð Microstrip Line 0.150 ″

wide, 0.200″

long

Figure 1. MRF166C 400 MHz Test Circuit

					TYPICAL CHARACTERISTICS
	100							10
(pF)	50		Coss				(AMPS)
(pF)			Ciss				(AMPS)		TC = 25°C
									TC = 25°C
CAPACITANCEC,	20						CURRENTDRAIN
CAPACITANCEC,	10						CURRENTDRAIN	1
	10							1
	5		Crss
							,
		VGS = 0 V					D
		VGS = 0 V					I
	2	f = 1 MHz
	1	5	10	15	20	25		0.1	10	100
	0	5	10	15	20	25		0	10	100
		VDS, DRAIN±SOURCE VOLTAGE (VOLTS)							VDS, DRAIN±SOURCE VOLTAGE (VOLTS)

Figure 2. Capacitance versus Drain±Source Voltage

Figure 3. DC Safe Operating Area

MOTOROLA RF DEVICE DATA	MRF166C
	3

TYPICAL CHARACTERISTICS

	35										16
, OUTPUT POWER (WATTS)	30									OUTPUTPOWER (WATTS)	14
	25							f = 400 MHz			12
	20										10								f = 400 MHz
	20							500 MHz											f = 400 MHz
								500 MHz			8
	15										8
	15										6
											6
	10						VDS = 28 V				4
o							I	= 100 mA		,								V	= 13.5 V
o							I	= 100 mA		o								V	= 13.5 V
P							DQ			P								DS
	5										2							IDQ = 100 mA
	0	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8		0	0	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8
	0	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8		0	0	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8

Pin, INPUT POWER (WATTS)	Pin, INPUT POWER (WATTS)
Figure 4. Output Power versus Input Power	Figure 5. Output Power versus Input Power

Po, OUTPUT POWER (WATTS)

32
32	f =	400 MHz					Pin =	0.8 W
	f =	400 MHz
28	I		= 100 mA
	DQ
24
24
20
20								0.4 W
16
16
12								0.2 W
8
8
4
4
0
0	14		16	18	20	22	24		26	28
12	14		16	18	20	22	24		26	28

VDS, DRAIN±SOURCE (VOLTS)

Figure 6. Output Power versus Voltage

	400		f = 500 MHz
			f = 500 MHz
200			400
Zin		200
	100		ZOL*
	100
100	Zo	= 50 Ω
	Zo	= 50 Ω

VDD = 28 V, IDQ = 100 mA

f	Zin	ZOL*
MHz	OHMS	OHMS

	(Pout = 20 W)
100	11.0 ± j21.0	8.50 ± j10.0
200	4.20 ± j12.6	6.00 ± j9.00
400	1.90 ± j5.80	4.50 ± j6.70
500	1.50 ± j4.10	4.20 ± j5.40

ZOL* = Conjugate of the optimum load impedance into which the device output operates at a given output power, voltage and frequency.

	Figure 7. Series Equivalent Input and Output Impedance

MRF166C	MOTOROLA RF DEVICE DATA
4

PACKAGE DIMENSIONS

	-A-	Q 2 PL
IDENTIFICATION	L	0.15 (0.006) M	T	A	M	N	M
NOTCH							NOTES:
							NOTES:
6	5	4					1.	DIMENSIONING AND TOLERANCING PER
6	5	4						ANSI Y14.5M, 1982.
								ANSI Y14.5M, 1982.
							2.	CONTROLLING DIMENSION: INCH.

										-N-
														INCHES		MILLIMETER
													DIM	MIN	MAX	MIN	MAX
1		2	3				K						A	0.965	0.985	24.52	25.01
							K						B	0.355	0.375	9.02	9.52
													C	0.230	0.260	5.85	6.60
	F												D	0.115	0.125	2.93	3.17
	F												D	0.115	0.125	2.93	3.17
				D 2 PL									E	0.102	0.114	2.59	2.90
													F	0.075	0.085	1.91	2.15
													F	0.075	0.085	1.91	2.15
					0.38 (0.015) M			T	A	M	N M		H	0.160	0.170	4.07	4.31
													H	0.160	0.170	4.07	4.31
													J	0.004	0.006	0.11	0.15
													J	0.004	0.006	0.11	0.15
													K	0.090	0.110	2.29	2.79
		B											L	0.725 BSC		18.42 BSC
						0.38 (0.015) M			T	A M		N M	L	0.725 BSC		18.42 BSC
						0.38 (0.015) M			T	A M		N M	N	0.225	0.241	5.72	6.12
													Q	0.125	0.135	3.18	3.42

	J
			STYLE 3:
	C		PIN 1.	SOURCE (COMMON)
H	C		2.	GATE (INPUT)
H	E		2.	GATE (INPUT)
	E		3.	SOURCE (COMMON)
	-T-	SEATING	4.	SOURCE (COMMON)
	-T-	SEATING	5.	DRAIN (OUTPUT)
		PLANE	5.	DRAIN (OUTPUT)
			6.	SOURCE (COMMON)

CASE 319±07

ISSUE M

MOTOROLA RF DEVICE DATA	MRF166C
	5

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. ªTypicalº parameters can and do vary in different applications. All operating parameters, including ªTypicalsº must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.

How to reach us:
USA / EUROPE: Motorola Literature Distribution;	JAPAN: Nippon Motorola Ltd.; Tatsumi±SPD±JLDC, Toshikatsu Otsuki,
P.O. Box 20912; Phoenix, Arizona 85036. 1±800±441±2447	6F Seibu±Butsuryu±Center, 3±14±2 Tatsumi Koto±Ku, Tokyo 135, Japan. 03±3521±8315
MFAX: RMFAX0@email.sps.mot.com ± TOUCHTONE (602) 244±6609 HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
INTERNET: http://Design±NET.com	51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852±26629298

◊	MRF166C/D
	MRF166C/D

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