SD1457 データシートの表示（PDF） - STMicroelectronics

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SD1457

RF POWER BIPOLAR TRANSISTORS FM BROADCAST APPLICATIONS

STMicroelectronics 

SD1457

RF POWER BIPOLAR TRANSISTORS

FM BROADCAST APPLICATIONS

FEATURES SUMMARY

■ 108 MHz

■ 28 VOLTS

■ EFFICIENCY 75%

■ COMMON EMITTER

■ GOLD METALLIZATION

■ POUT = 75 W MIN. WITH 10.0 dB GAIN

Figure 1. Package

DESCRIPTION

The SD1457 is a 28 V gold metallized epitaxial sil-

icon NPN planar transistor designed for FM VHF

broadcast transmitters.

This device utilizes diffused emitter resistors to

achieve infinite VSWR at rated operating condi-

tions.

.500 4L FL (M174)

epoxy sealed

Figure 2. Pin Connection

Table 1. Order Codes

Order Codes

SD1457

Marking

SD1457

1. Collector

2. Emitter

3. Base

4. Emitter

Package

M174

Packaging

PLASTIC TRAYS

June 2004

REV. 2

1/8

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