HF/VHF APPLICATIONS

RF & MICROWAVE TRANSISTORS

.380 4LFL (M113)

epoxy sealed

.

50 MHz

.

12.5 VOLTS

.

EFFICIENCY 55%

.

COMMON EMITTER

.

GOLD METALLIZATION

.

DESCRIPTION

The SD1446 is a 12.5 V Class C epitaxial silicon

NPN planar transistor designed primarily for land

mobile transmitter applications. This device utilizes

emitter ballasting and is extremely stable and ca-

pable of withstanding high VSWR under operating

conditions.

PIN CONNECTION

BRANDING

SD1446

ORDER CODE

SD1446

= 25°C)

Symbol

Parameter

Value

Uni t

Collector-Base Voltage

36

V

Collector-Emitter Voltage

18

V

Emitter-Base Voltage

3.5

V

Device Current

12.0

A

Power Dissipation

183

W

Junction Temperature

+200

°C

Storage Temperature

− 65 to +150

°C

Junction-Case Thermal Resistance

1.05

°C/W

SD1446

1. Collector

3. Base

2. Emitter

4. Emitter

THERMAL DATA

November 1992

1/5