October 1992

8

Philips Semiconductors

Product specification

UHF push-pull power MOS transistor

BLF547

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

4. The striplines are on a double copper-clad printed circuit board, with PTFE fiber-glass dielectric (

thickness 0.79 mm.

C13, C16

electrolytic capacitor

10

µF, 63 V

2222 030 28109

C18

multilayer ceramic chip capacitor

(note 2)

10 pF

C19

multilayer ceramic chip capacitor

(note 2)

27 pF

C20

multilayer ceramic chip capacitor

(note 2)

8.2 pF

C23, C24

multilayer ceramic chip capacitor

(note 1)

30 pF

L1, L3, L22, L24

stripline (note 4)

34.5

Ω

length 66.5 mm

width 4 mm

L2, L23

semi-rigid cable

50

Ω

length 66.5 mm

width 3.6 mm

L4, L5

stripline (note 4)

22.3

Ω

length 35 mm

width 7 mm

L6, L7

stripline (note 4)

22.3

Ω

length 10 mm

width 7 mm

L8, L9

stripline (note 4)

22.3

Ω

length 5.5 mm

width 7 mm

L10, L11, L16, L17

grade 3B Ferroxcube RF choke

4312 020 36640

L12, L15

1 turn enamelled 1.5 mm copper

wire

17 nH

length 5 mm

int. dia. 9 mm

leads 2

× 5 mm

L13, L14

stripline (note 4)

22.3

Ω

length 15 mm

width 7 mm

L18, L19

stripline (note 4)

22.3

Ω

length 36 mm

width 7 mm

L20, L21

stripline (note 4)

22.3

Ω

length 8.5 mm

width 7 mm

R1, R5

0.4 W metal film resistor

24.7 k

Ω

2322 151 72473

R2, R6

10 turn potentiometer

5 k

Ω

R3, R4

0.4 W metal film resistor

10.5 k

Ω

2322 151 71053

R7, R8

1 W metal film resistor

10

Ω

2322 151 71009

COMPONENT

DESCRIPTION

VALUE

DIMENSIONS

CATALOGUE NO.