DESCRIPTION
The SD1897 is a 28 V Class C silicon NPN transistor 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.

. 1.65 GHz
. 28 VOLTS
. CLASS C OPERATION
. COMMON BASE
. POUT = 10 W MIN. WITH 11.0 dB GAIN