VHF MOBILE APPLICATIONS

RF & MICROWAVE TRANSISTORS

.500 6LFL (M111)

epoxy sealed

.

175 MHz

.

12.5 VOLTS

.

COMMON EMITTER

.

DESCRIPTION

The SD1477 is a 12.5 V Class C epitaxial silicon

NPN planar transistor designed primarily for VHF

FM communications. This device utilizes diffused

emitter resistors to withstand extremely high VSWR

under rated operating conditions, and is internally

input matched to optimize power gain and effi-

ciency over the 136 - 175 MHz band.

PIN CONNECTION

BRANDING

SD1477

ORDER CODE

SD1477

= 25°C)

Symbol

Parameter

Value

Uni t

Collector-Base Voltage

36

V

Collector-Emitter Voltage

18

V

Collector-Emitter Voltage

36

V

Emitter-Base Voltage

4.0

V

Device Current

20

A

Power Dissipation

270

W

Junction Temperature

+200

°C

Storage Temperature

− 65 to +150

°C

Junction-Case Thermal Resistance

0.65

°C/W

SD1477

1. Collector

3. Emitter

2. Base

4. Emitter

THERMAL DATA

November 1992

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