.
.
.
.
.
.
.
鈭?/div>
30 dB
GOLD METALLIZATION
COMMON EMITTER
P
OUT
=
250 W PEP WITH 14.5 dB GAIN
.550 4LFL (M177)
epoxy sealed
ORDER CODE
SD1728
BRANDING
TH430
PIN CONNECTION
DESCRIPTION
The SD1728 is a 50 V epitaxial silicon NPN planar
transistor designed primarily for SSB and VHF
communications. This device utilizes emitter bal-
lasting for improved ruggedness and reliability.
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
110
55
4.0
40
330
+200
鈭?/div>
65 to +150
V
V
V
A
W
擄
C
擄
C
THERMAL DATA
R
TH(j-c)
November 1992
Junction-Case Thermal Resistance
0.4
擄C/W
1/9
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