SD1897 datasheet(1/4 Pages) STMICROELECTRONICS

Part #	SD1897

Description	RF & MICROWAVE TRANSISTORS 1.65 GHz SATCOM APPLICATIONS

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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1.65 GHz SATCOM APPLICATIONS

RF & MICROWAVE TRANSISTORS

. 250 x .320 2LFL (M170)

epoxy sealed

.

1.65 GHz

.

28 VOLTS

.

CLASS C OPERATION

.

COMMON BASE

.

POUT

= 10 W MIN. WITH 11.0 dB GAIN

DESCRIPTION

The SD1897 is a 28 V Class C silicon NPN tran-

sistor designed for INMARSAT and other 1.65 GHz

SATCOM applications. A gold metallized emitter-

ballasted die geometry is employed providing high

gain and efficiency while ensuring long term re-

liability and ruggedness under severe operating

conditions. SD1897 is packaged in a cost-effective

epoxy sealed housing.

PIN CONNECTION

BRANDING

1897

ORDER CODE

SD1897

ABSOLUTE MAXIMUM RATINGS (Tcase

= 25°C)

Symbol

Parameter

Value

Uni t

VCBO

Collector-Base Voltage

45

V

VCEO

Collector-Emitter Voltage

15

V

VEBO

Emitter-Base Voltage

3.5

V

IC

Device Current

2.3

A

PDISS

Power Dissipation

29

W

TJ

Junction Temperature

+200

°C

TSTG

Storage Temperature

− 65 to +150

°C

RTH(j-c)

Junction-Case Thermal Resistance

6.0

°C/W

SD1897

1. Collector

3. Base

2. Emitter

THERMAL DATA

July 1993

1/4

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