1998 Jan 28

2

Philips Semiconductors

Product specification

UHF power transistor

BLT52

FEATURES

• Emitter ballasting resistors for an optimum

temperature profile

• Gold metallization ensures excellent reliability.

APPLICATIONS

• Common emitter class-B operation in portable radio

transmitters in the 470 MHz communication band.

DESCRIPTION

NPN silicon planar epitaxial power transistor encapsulated

in a ceramic SOT409A SMD package.

PINNING

PIN

DESCRIPTION

1, 4, 5, 8

emitter

2, 3

base

6, 7

collector

Fig.1 Simplified outline SOT409A.

handbook, halfpage

MBK150

Top view

14

85

QUICK REFERENCE DATA

MODE OF OPERATION

f

(MHz)

(V)

(W)

(dB)

(%)

CW, class-B

470

7.5

7

≥8

≥50

typ. 9.5

typ. 65

63

≥8

≥50

typ. 9.5

typ. 55