1/9

June 2004

SD1477

RF POWER BIPOLAR TRANSISTORS

VHF MOBILE APPLICATIONS

REV. 2

FEATURES SUMMARY

DESCRIPTION

The SD1477 is a 12.5 V Class C epitaxial silicon

NPN planar transistor designed primarily for VHF

FM communications. This device utilizes diffused

emitter resistors to withstand extremely high

VSWR under rated operating conditions, and is in-

ternally input matched to optimize power gain and

efficiency over the 136 - 175 MHz band.

Figure 1. Package

Figure 2. Pin Connection

Table 1. Order Codes

.500 6L FL (M111)

epoxy sealed

1. Collector

3. Emitter

2. Base

4. Emitter

Order Codes

Marking

Package

Packaging

SD1477

SD1477

M111

PLASTIC TRAYS