SD1540-08 Datasheet, PDF (1/5 Pages) STMicroelectronics – RF & MICROWAVE TRANSISTORS AVIONICS APPLICATIONS

SD1540-08
RF & MICROWAVE TRANSISTORS
AVIONICS APPLICATIONS
. DESIGNED FOR HIGH POWER PULSED
IFF, DME, TACAN APPLICATIONS
. 350 WATTS (typ.) IFF 1030 - 1090 MHz
. 300 WATTS (min.) DME 1025 - 1150 MHz
. 290 WATTS (typ.) TACAN 960 - 1215 MHz
. 6.3 dB MIN. GAIN
. REFRACTORY GOLD METALLIZATION
. EMITTER BALLASTING AND LOW
THERMAL RESISTANCE FOR
RELIABILITY AND RUGGEDNESS
. 20:1 LOAD VSWR CAPABILITY AT
SPECIFIED OPERATING CONDITIONS
. INPUT/OUTPUT MATCHED, COMMON
BASE CONFIGURATION
.400 x .400. 2LFL (M138)
hermetically sealed
ORDER CODE
B RA ND IN G
SD1540-08
SD1540-8
PIN CONNECTION
DESCRIPTION
The SD1540-08 is a gold metallized silicon, NPN
power transistor designed for applications requiring
high peak power and low duty cycles such as
IFF, DME and TACAN. The SD1540 is packaged
in a metal/ceramic package with internal input/out-
put matching resulting in improved broadband per-
formance and a low thermal resistance.
ABSOLUTE MAXIMUM RATINGS (Tcase = 25^°C)
Symb ol
Parameter
VCBO
Collector-Base Voltage
V_CES
Collector-Emitter Voltage
V_EBO
Emitter-Base Voltage
IC
Device Current
PDISS
Power Dissipation
T_J
T_STG
Junction Temperature
Storage Temperature
THERMAL DATA
RTH(j-c) Junction-Case Thermal Resistance
November 1992
1. Collector
2. Base
3. Emitter
4. Base
Value
Unit
65
V
65
V
3.5
V
22
A
875
W
+200
°_C
− 65 to +150
°_C
0.20
°C/W
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