December 1997

9

Philips Semiconductors

Product specification

VHF power MOS transistor

BLF276

Notes

1. American Technical Ceramics (ATC) capacitor, type 100B or other capacitor of the same quality.

2. American Technical Ceramics (ATC) capacitor, type 175B or other capacitor of the same quality.

3. The striplines are on a double copper-clad printed circuit board, with epoxy fibre-glass PTFE dielectric (

L12

3 turns enamelled 1.5 mm copper

wire

50 nH

length 4.8 mm

int. dia. 5 mm

leads 2

× 4 mm

L13

stripline (note 3)

31

Ω

length 5 mm

width 6 mm

L14

1 turn enamelled 1.5 mm copper

wire

int. dia. 2.8 mm

leads 2

× 1mm

L15

stripline (note 3)

36

Ω

length 16.5 mm

width 5 mm

L16

stripline (note 3)

36

Ω

length 8 mm

width 5 mm

L17

2 turns enamelled 1.5 mm copper

wire

17 nH

length 4.7 mm

int. dia. 4 mm

leads 2

× 2 mm

L18

stripline (note 3)

36

Ω

length 17.5 mm

width 5 mm

L19, L20

stripline (note 3)

36

Ω

length 8.5 mm

width 5 mm

L21

grade 3B Ferroxcube wide-band RF

choke

4312 020 36642

R1

1 W metal film resistor

9.09

Ω

2222 153 59098

R2

10 turns potentiometer

50 k

Ω

R3

0.4 W metal film resistor

400 k

Ω

2322 151 74024

R4

0.4 W metal film resistor

10

Ω

2322 151 11009

COMPONENT

DESCRIPTION

VALUE

DIMENSIONS

CATALOGUE NO.