SD1457
RF & MICROWAVE
TRANSISTORS FM BROADCAST APPLICATIONS
.
.
.
.
.
.
108 MHz 28 VOLTS EFFICIENCY 75% COMMON EMITTER GOLD METALLIZATION P OUT = 75 W MIN.
WITH 10.
0 dB GAIN
.
500 4LFL (M174) epoxy sealed ORDER CODE SD1457 BRANDING SD1457
com
PIN CONNECTION
DESCRIPTION The SD1457 is a 28 V gold metallized epitaxial silicon
NPN planar
transistor designed for FM VHF broadcast transmitters.
This device utlizes diffused emitter resistors to achieve infinite VSWR at rated operating conditions.
ABSOLUTE MAXIMUM RATINGS (T case = 25 ° C)
Symbol Parameter Value Unit 1.
Collector 2.
Emitter 3.
Base 4.
Emitter
VCBO VCEO VCES VEBO IC PDISS TJ T STG
Collector-Base Voltage Collector...