TV/LINEAR APPLICATIONS

RF & MICROWAVE TRANSISTORS

. 438 x .450 2LFL (M173)

epoxy sealed

.

470 - 860 MHz

.

28 VOLTS

.

CLASS A PUSH PULL

.

DESIGNED FOR HIGH POWER LINEAR

OPERATION

.

HIGH SATURATED POWER CAPABILITY

.

GOLD METALLIZATION

.

DIFFUSED EMITTER BALLAST

RESISTORS

.

COMMON EMITTER CONFIGURATION

.

INTERNAL INPUT MATCHING

.

DESCRIPTION

The SD1490 is a gold metallized epitaxial silicon

NPN planar transistor using diffused emitter ballast

resistors for high linearity Class A operation in

UHF and Band IV, V television transmitters and

transposers.

PIN CONNECTION

BRANDING

SD1490

ORDER CODE

SD1490

= 25°C)

Symbol

Parameter

Value

Uni t

Collector-Base Voltage

45

V

Collector-Emitter Voltage

30

V

Emitter-Base Voltage

3.0

V

Device Current

8

A

Power Dissipation

135

W

Junction Temperature

+200

°C

Storage Temperature

− 50 to +150

°C

Junction-Case Thermal Resistance

1.3

°C/W

SD1490

1. Collector

3. Emitter

2. Base

THERMAL DATA

June 1993

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