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SD1542-42 Datasheet, PDF (1/4 Pages) STMicroelectronics – RF & MICROWAVE TRANSISTORS AVIONICS APPLICATIONS
SD1542-42
RF & MICROWAVE TRANSISTORS
AVIONICS APPLICATIONS
. DESIGNED FOR HIGH POWER PULSED
IFF
. 600 WATTS (min.) IFF 1030 or 1090 MHz
. REFRACTORY GOLD METALLIZATION
. 6.0 dB MIN. GAIN
. LOW THERMAL RESISTANCE FOR
RELIABILITY AND RUGGEDNESS
. 30:1 LOAD VSWR CAPABILITY AT
SPECIFIED OPERATING CONDITIONS
. INPUT MATCHED, COMMON BASE
CONFIGURATION
.400 x .500 2LFL (M112)
hermetically sealed
ORDER CODE
SD1542-42
BRANDING
SD1542-42
PIN CONNECTION
DESCRIPTION
The SD1542-42 is a hermetically sealed, gold met-
allized, silicon NPN power transistor. The SD1542-
42 is designed for applications requiring high peak
power and low duty cycles such as IFF. The
SD1542-42 is packaged in a hermetic metal/ce-
ramic package with internal input matching, re-
sulting in improved broadband performance and
low thermal resistance.
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C)
Symbol
P ar ame te r
VCC
Collector-Supply Voltage*
IC
PDIS S
TJ
Device Current*
(TC ≤ 100°C)
Power Dissipation*
Junction Temperature
T ST G
Storage Temperature
THERMAL DATA
RTH(j-c) Junction-Case Thermal Resistance*
* Applies only to rated RF operation.
June 14, 1995
1. Collector
2. Base
3. Emitter
4. Base
V alu e
Un it
55
V
45
A
167 0
W
+200
°C
− 65 to +200
°C
0.0 6
°C/W
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