1998 Jan 29

2

Philips Semiconductors

Product specification

UHF power MOS transistor

BLF404

FEATURES

• High power gain

• Easy power control

• Gold metallization

• Good thermal stability

• Withstands full load mismatch

• Designed for broadband operation.

APPLICATIONS

• Communication transmitters in the VHF/UHF range with

a nominal supply voltage of 12.5 V.

DESCRIPTION

Silicon N-channel enhancement mode vertical D-MOS

power transistor in an 8-lead SOT409A SMD package with

a ceramic cap.

PINNING

PIN

DESCRIPTION

1, 8

source

2, 3

gate

4, 5

source

6, 7

drain

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-AB

500

12.5

4

≥10

≥50

CAUTION

This product is supplied in anti-static packing to prevent damage caused by electrostatic discharge during transport

and handling. For further information, refer to Philips specs.: SNW-EQ-608, SNW-FQ-302A, and SNW-FQ-302B.