SD1542-42
RF & MICROWAVE TRANSISTORS
AVIONICS APPLICATIONS
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.
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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 CO DE
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.
1. Collector
2. Base
3. Emitter
4. Base
ABSOLUTE MAXIMUM RATINGS
(T
case
=
25
擄
C)
Symbol
Parameter
Valu e
Un it
V
CC
I
C
P
DISS
T
J
T
STG
Collector-Supply Voltage*
Device Current*
Power Dissipation*
Junction Temperature
Storage Temperature
(T
C
鈮?/div>
100擄C)
55
45
1670
+200
鈭?/div>
65 to +200
V
A
W
擄
C
擄
C
THERMAL DATA
R
TH(j-c)
Junction-Case Thermal Resistance*
0.06
擄
C/W
* Applies only to rated RF operation.
June 14, 1995
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