SD1898 データシートの表示（PDF） - STMicroelectronics

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SD1898

RF & MICROWAVE TRANSISTORS 1.6 GHz SATCOM APPLICATIONS

STMicroelectronics 

SD1898

RF & MICROWAVE TRANSISTORS

1.6 GHz SATCOM APPLICATIONS

......1.65 GHz

28 VOLTS

EFFICIENCY 40% MIN.

CLASS C OPERATION

COMMON BASE

POUT = 32 W MIN. WITH 9 dB GAIN

.400 SQ. 2LFL (M186)

epoxy sealed

ORDER CODE

SD1898

B RA ND IN G

1898

PIN CONNECTION

DESCRIPTION

The SD1898 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. SD1898 is packaged in a cost-effective

epoxy sealed housing.

ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C)

Symb ol

Parameter

VCBO

VCEO

VEBO

IC

PDISS

TJ

TSTG

Collector-Base Voltage

Collector-Emitter Voltage

Emitter-Base Voltage

Device Current

Power Dissipation

Junction Temperature

Storage Temperature

THERMAL DATA

RTH(j-c) Junction-Case Thermal Resistance

November 1992

1. Collector

2. Base

3. Emitter

4. Base

Value

Unit

45

V

15

V

3.5

V

7.8

A

87.5

W

+200

°C

− 65 to +150

°C

2.0

°C/W

1/4

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