2731-20R1
Microsemi reserves the right to change, without notice, the specifications and information contained herein. Visit
our web site at www.microsemi.com or contact our factory direct.
2731-20
20Watts, 36 Volts, 100us, 10%
Radar 2700-3100 MHz
GENERAL DESCRIPTION
The 2731-20is an internally matched, COMMON BASE bipolar transistor
capable of providing 20Watts of pulsed RF output power at 100 pulse width,
10% duty factor across the 2700 to 3100 MHz band. The transistor prematch
and test fixture has been optimized through the use of 10 Ohm TRL Analysis.
This ceramic sealed transistor is specifically designed for S-band radar
applications. It utilizes gold metalliza tion a nd emitter ba llastin g to pro vide high
reliability and supreme ruggedness.
CASE OUTLINE
55KCR-1
Common Base
ABSOLUTE MAXIMUM RATINGS
Maximum Power Dissipation
Device Dissipation @ 2 5 °C1 70 W
Maximum Volt ag e a nd C urre nt
Collector to Base Voltage (BVces) 65 V
Emitter to Base Voltage (BVebo) 3.0 V
Peak Collector Current (Ic) 1.85 A
Maxi mum Temper at ur e s
Storage Temperature -65 to +200 °C
Operating Junction Te mperature +200 °C
ELECTRICAL CHARACTERISTICS @ 25°
°°
°C
SYMBOL CHARACTERISTICS TEST CONDITIONS MIN TYP MAX UNITS
Pout Power Output F=2700-3100 MHz 20 W
Pg Power Gain Pulse Width = 100s 8.2 dB
ηc Collector Efficiency Duty Factor = 10 % 45 %
Rl Return Loss Power Input = 3W -7 dB
VSWR-S Load Mismatch Stability Vcc = +36V 1.5:1
VSWR-T Load Mismatch Tolerance F = 2700, 2900, 3100 MHz 3:1
FUNCTIONAL CHAR ACTERISTICS @ 25°
°°
°C
Ices Collector to Emitter Leakage Vce=40V 1.5 mA
BVces Collector to Emitter Breakdown Ic = 10 mA 65 V
θjc1 Thermal Resistance 2.5 °C/W
2731-20R1
Microsemi reserves the right to change, without notice, the specifications and information contained herein. Visit
our web site at www.microsemi.com or contact our factory direct.
2731-20
2731-20R1
Microsemi reserves the right to change, without notice, the specifications and information contained herein. Visit
our web site at www.microsemi.com or contact our factory direct.
