October 1992

8

Philips Semiconductors

Product specification

UHF push-pull power MOS transistor

BLF545

List of components (class-B test circuit)

Notes

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

COMPONENT

DESCRIPTION

VALUE

DIMENSIONS

CATALOGUE NO.

C1, C2

multilayer ceramic chip capacitor

(note 1)

5.1 pF

C3, C4

multilayer ceramic chip capacitor

(note 1)

16 pF

C5, C7, C20, C22

film dielectric trimmer

1.8 to 10 pF

2222 809 05002

C6

multilayer ceramic chip capacitor

(note 1)

22 pF

C8, C11, C12, C18

multilayer ceramic chip capacitor

100 nF

2222 852 47104

C9, C10, C14, C16

multilayer ceramic chip capacitor

(note 1)

390 pF

C13, C17

electrolytic capacitor

10

µF, 63 V

C15

multilayer ceramic chip capacitor

(note 1)

18 pF

C19

multilayer ceramic chip capacitor

(note 1)

13 pF

C21

multilayer ceramic chip capacitor

(note 1)

6.2 pF

C23, C24

multilayer ceramic chip capacitor

(note 1)

10 pF

L1, L3, L24, L26

stripline (note 2)

50

Ω

56

× 2.4 mm

L2, L25

semi-rigid cable (note 3)

50

Ω

ext. dia. 2.2 mm

ext. conductor

length 56 mm

L4, L5

stripline (note 2)

56

Ω

13.4

× 2 mm

L6, L7

stripline (notes 2 and 4)

56

Ω

9.6

× 2 mm

L8, L9

stripline (note 2)

42

Ω

9

× 3 mm

L10, L11

stripline (note 2)

42

Ω

6

× 3 mm

L12, L17

grade 3B Ferroxcube RF choke

4312 020 36642

L13, L16

4 turns enamelled 1.2 mm copper

wire

62 nH

length 7.6 mm

int. dia. 5 mm

leads 2

× 5 mm

L14, L15

stripline (note 2)

56

Ω

8

× 2 mm

L18, L19

stripline (note 2)

56

Ω

13

× 2 mm

L20, L21

stripline (note 2)

56

Ω

18

× 2 mm

L22, L23

stripline (note 2)

56

Ω

14

× 2 mm

R1

0.4 W metal film resistor

5.11

Ω

2322 151 75118

R2, R5

10 turns cermet potentiometer

50 k

Ω

R3, R4

0.4 W metal film resistor

10 k

Ω

2322 151 71003

R6, R7

0.4 W metal film resistor

205 k

Ω

2322 151 72054

R8, R9

1 W metal film resistor

10

Ω

2322 151 71009