.
.
.
.
.
.
鈭?/div>
30 dB
P
OUT
=
20 W MIN. WITH 15 dB GAIN
.380 4LFL (M113)
epoxy sealed
ORDER CODE
SD1285
BRANDING
SD1285
PIN CONNECTION
DESCRIPTION
The SD1285 is a 12.5 V epitaxial NPN planar
transistor designed primarily for SSB communica-
tions. This device utilizes emitter ballasting to
achieve extreme ruggedness under severe oper-
ating conditions.
ABSOLUTE MAXIMUM RATINGS
(T
case
=
25
擄
C)
Symbol
Parameter
Value
Unit
1. Collector
2. Emitter
3. Base
4. Emitter
V
CBO
V
CEO
V
EBO
I
C
P
DISS
T
J
T
STG
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Device Current
Power Dissipation
Junction Temperature
Storage Temperature
36
18
4.0
4.5
80
+200
鈭?/div>
65 to +150
V
V
V
A
W
擄
C
擄
C
THERMAL DATA
R
TH(j-c)
Junction-Case Thermal Resistance
October 1992
2.2
擄C/W
1/3
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