SD1894 datasheet(1/4 Pages) STMICROELECTRONICS

Part #	SD1894

Description	RF & MICROWAVE TRANSISTORS SATELLITE COMMUNICATIONS APPLICATIONS

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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RF & MICROWAVE TRANSISTORS

SATELLITE COMMUNICATIONS APPLICATIONS

.250x.3202LFL (M170)

epoxy sealed

.

CLASS C

.

1.6 GHz

.

COMMON BASE

.

REFRACTORY/GOLD METALLIZATION

.

EFFICIENCY

= 50% MIN.

.

POUT

= 4.5 W MIN. WITH 10 dB GAIN

DESCRIPTION

The SD1894 is a common base silicon NPN bipolar

device optimized for 1.6 GHz SATCOM applica-

tions.

The SD1894 offers superior gain and collector effi-

ciency, making it an ideal choice for Class C power

amplifiers used in portable as well as fixed SAT-

COM terminals.

PIN CONNECTION

BRANDING

SD1894

ORDER CODE

SD1894

ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C)

Symbol

Parameter

Valu e

Uni t

VCBO

Collector-Base Voltage

45

V

VCES

Collector-Emitter Voltage

45

V

VEBO

Emitter-Base Voltage

3.0

V

IC

Device Current

375

mA

PDISS

Power Dissipation

12.5

W

TJ

Junction Temperature

+200

°C

TSTG

Storage Temperature

− 65 to +150

°C

RTH(j-c)

Junction-Case Thermal Resistance

14.0

°C/W

SD1894

1. Collector

3. Base

2. Emitter

THERMAL DATA

February 4, 1997

1/4

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