RF & MICROWAVE TRANSISTORS UHF MOBILE APPLICATIONS
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SD1274
RF & MICROWAVE TRANSISTORS VHF MOBILE APPLICATIONS
....160 MHz 13.6 VOLTS COMMON EMITTER POUT = 30 W MIN. WITH 10 dB GAIN
.380 4L STUD (M135) epoxy sealed
ORDER CODE
B RA ND IN G
SD1274
SD1274
PIN CONNECTION
DESCRIPTION
The SD1274 is a 13.6 V Class C epitaxial silicon NPN planar transistor designed primarily for VHF communications. The SD1274 utilizes an emitter ballasted die geometry to withstand severe load mismatch conditions.
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C)
Symb ol
Parameter
VCBO
Collector-Base Voltage
VCEO
Collector-Emitter Voltage
VCES
Collector-Emitter Voltage
VEBO
Emitter-Base Voltage
IC Device Current
PDISS TJ
Power Dissipation Junction Temperature
TSTG
Storage Temperature
THERMAL DATA RTH(j-c) Junction-Case Thermal Resistance
June 1993
1.