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MRF857 Datasheet

  • MRF857

  • NPN SILICON RF POWER TRANSISTOR

  • 6頁(yè)

  • MOTOROLA   MOTOROLA

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MOTOROLA
The RF Line
SEMICONDUCTOR TECHNICAL DATA
Order this document
by MRF857/D
NPN Silicon
RF Power Transistor
Designed for 24 Volt UHF large鈥搒ignal, common emitter, class A linear
amplifier applications in industrial and commercial equipment operating in the
range of 800 鈥?960 MHz.
鈥?/div>
Specified for VCE = 24 Vdc, IC = 0.3 Adc Characteristics
Output Power = 2.1 Watts CW
Minimum Power Gain = 12.5 dB
Minimum ITO = + 43 dBm
Typical Noise Figure = 5.25 dB
鈥?/div>
Characterized with Small鈥揝ignal S鈥揚(yáng)arameters and Series Equivalent
Large鈥揝ignal Parameters from 800 鈥?960 MHz
鈥?/div>
Silicon Nitride Passivated
鈥?/div>
100% Tested for Load Mismatch Stress at All Phase Angles with 30:1
VSWR @ 24 Vdc, IC = 0.3 Adc and Rated Output Power
鈥?/div>
Will Withstand RF Input Overdrive of 0.4 W CW
鈥?/div>
Gold Metallized, Emitter Ballasted for Long Life and Resistance to Metal
Migration
鈥?/div>
Circuit board photomaster available upon request by contacting
RF Tactical Marketing in Phoenix, AZ.
MRF857S
CLASS A
800 鈥?960 MHz
2.1 W (CW), 24 V
NPN SILICON
RF POWER TRANSISTOR
CASE 305D鈥?1, STYLE 1
MAXIMUM RATINGS
Rating
Collector鈥揈mitter Voltage
Collector鈥揃ase Voltage
Emitter鈥揃ase Voltage
Total Device Dissipation @ TC = 50擄C
Derate above 50擄C
Operating Junction Temperature
Storage Temperature Range
Symbol
VCEO
VCBO
VEBO
PD
TJ
Tstg
Characteristic
Thermal Resistance (TJ = 150擄C, TC = 50擄C)
Symbol
R
胃JC
Symbol
V(BR)CEO
V(BR)CES
V(BR)CBO
V(BR)EBO
ICES
Min
28
55
55
4
鈥?/div>
Typ
35
85
85
5
鈥?/div>
Value
30
55
4
17
0.114
200
鈥?65 to +150
Unit
Vdc
Vdc
Vdc
Watts
W/擄C
擄C
擄C
THERMAL CHARACTERISTICS
Max
8.4
Unit
擄C/W
ELECTRICAL CHARACTERISTICS
Characteristic
OFF CHARACTERISTICS
Collector鈥揈mitter Breakdown Voltage (IC = 20 mA, IB = 0)
Collector鈥揈mitter Breakdown Voltage (IC = 20 mA, VBE = 0)
Collector鈥揃ase Breakdown Voltage (IC = 20 mA, IE = 0)
Emitter鈥揃ase Breakdown Voltage (IE = 1 mA, IC = 0)
Collector Cutoff Current (VCB = 24 V, IE = 0)
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
1
Vdc
Vdc
Vdc
Vdc
mA
(continued)
Max
Unit
REV 3
漏
MOTOROLA RF DEVICE DATA
Motorola, Inc. 1997
MRF857S
1

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