September 1992

8

Philips Semiconductors

Product specification

VHF power MOS transistor

BLF245

List of components (class-B test circuit)

Notes

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

2. The striplines are mounted on a double copper-clad PCB with epoxy fibre-glass dielectric (

COMPONENT

DESCRIPTION

VALUE

DIMENSIONS

CATALOGUE NO.

C1

film dielectric trimmer

4 to 40 pF

2222 809 07008

C2, C8

film dielectric trimmer

5 to 60 pF

2222 809 07011

C3

multilayer ceramic chip capacitor

100 pF

2222 854 13101

C4, C6

multilayer ceramic chip capacitor

100 nF

2222 852 47104

C5

ceramic capacitor

100 pF

2222 680 10101

C7

multilayer ceramic chip capacitor

(note 1)

18 pF

C9

multilayer ceramic chip capacitor

(note 1)

27 pF

C10

multilayer ceramic chip capacitor

(note 1)

24 pF

L1

3 turns enamelled 0.5 mm copper

wire

13.5 nH

length 3.5 mm

int. dia. 2 mm

leads 2

× 2mm

L2, L3

stripline (note 2)

30

Ω

10

× 6mm

L4

6 turns enamelled 1.5 mm copper

wire

98 nH

length 12.5 mm

int. dia. 5 mm

leads 2

× 2mm

L5

grade 3B Ferroxcube RF choke

4312 020 36640

L6

2 turns enamelled 1.5 mm copper

wire

24.5 nH

length 4 mm

int. dia. 5 mm

leads 2

× 2mm

R1

metal film resistor

1 k

Ω

R2

metal film resistor

1 M

Ω

R3

metal film resistor

10

Ω