May 1991

8

Philips Semiconductors

Product specification

UHF power transistor

BLT53

Fig.10 Component layout for 470 MHz class-B test circuit.

The circuit and components are situated on one side of a copper-clad PTFE fibre-glass board; the other side is

unetched and serves as a ground plane. Earth connections from the component side to the ground plane are

made by means of hollow rivets.

Dimensions in mm.

handbook, full pagewidth

MBH108

input

50

Ω

output

50

Ω

rivet (4x)

52.7

41.1

146

47

C1

L2

L1

R1

C3

C4

L3

C5

L5

C6

C7

C8

R2

VCC

L4

C2