FM BROADCAST APPLICATIONS

RF & MICROWAVE TRANSISTORS

.500 4LFL (M174)

epoxy sealed

.

108 MHz

.

28 VOLTS

.

EFFICIENCY 75%

.

COMMON EMITTER

.

GOLD METALLIZATION

.

DESCRIPTION

The SD1143 is a 28 V gold metallized epitaxial

silicon NPN planar transistor designed for VHF

FM broadcast transmitters. This device utilizes dif-

fused emitter resistors to achieve infinite VSWR

at rated operating conditions.

PIN CONNECTION

BRANDING

SD1460

ORDER CODE

SD1460

= 25°C)

Symbol

Parameter

Value

Uni t

Collector-Base Voltage

60

V

Collector-Emitter Voltage

25

V

Collector-Emitter Voltage

60

V

Emitter-Base Voltage

4.0

V

Device Current

16

A

Power Dissipation

230

W

Junction Temperature

+200

°C

Storage Temperature

− 65 to +150

°C

Junction-Case Thermal Resistance

0.75

°C/W

SD1460

1. Collector

3. Base

2. Emitter

4. Emitter

THERMAL DATA

November 1992

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