BLW85 データシートの表示（PDF） - Philips Electronics

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BLW85

HF/VHF power transistor

Philips Electronics 

Philips Semiconductors

HF/VHF power transistor

150

handbook, full pagewidth

1888MJK

Product specification

BLW85

72

L3

R1

C3a

L2

C1

C2

L1

L4

C3b

1888MJK

L8

C4

C5

+VCC

R2

L6

C6a

L5

C7

C8

L7

C6b

rivet

MGP605

Fig.8 Component layout and printed-circuit board for 175 MHz test circuit.

The circuit and the components are situated on one side of the epoxy fibre-glass board, the other side being fully

metallized to serve as earth. Earth connections are made by means of hollow rivets, whilst under the emitter leads Cu

straps are used for a direct contact between upper and lower sheets.

To minimize the dielectric losses, the ground plane under the interconnection of L7 and C7 has been removed.

March 1993

7

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