BLF278 查看數據表（PDF） - Philips Electronics
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BLF278 Datasheet PDF : 21 Pages
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Philips Semiconductors
VHF push-pull power MOS transistor
Product Specification
BLF278
List of components (see Figs 12 and 13).
COMPONENT
DESCRIPTION
C1, C2, C33, C34 multilayer ceramic chip capacitor;
note 1
C3, C4
multilayer ceramic chip capacitor;
note 1
C5, C6, C28
film dielectric trimmer
C7
multilayer ceramic chip capacitor;
note 1
C8, C11, C12,
C15, C16, C19,
C36
C9, C10, C13,
C14, C20, C25
C17, C18, C22,
C23
C21, C24, C35
C26
multilayer ceramic chip capacitor
multilayer ceramic chip capacitor;
note 1
multilayer ceramic chip capacitor;
note 1
electrolytic capacitor
multilayer ceramic chip capacitor;
note 1
C27
multilayer ceramic chip capacitor;
note 1
C29
multilayer ceramic chip capacitor;
note 1
C30
C31, C32
L1, L2
film dielectric trimmer
multilayer ceramic chip capacitor;
note 1
stripline; note 2
VALUE
22 pF, 500 V
100 pF + 68 pF
in parallel, 500 V
5 to 60 pF
2 × 100 pF +
1 × 120 pF in
parallel, 500 V
100 nF, 500 V
1 nF, 500 V
470 pF, 500 V
10 µF, 63 V
2 × 15 pF +
1 × 18 pF in
parallel, 500 V
3 × 15 pF in
parallel, 500 V
2 × 18 pF +
1 × 15 pF in
parallel, 500 V
2 to 18 pF
3 × 43 pF in
parallel, 500 V
43 Ω
L3, L4
stripline; note 2
43 Ω
L5, L6
stripline; note 2
43 Ω
L7, L8
stripline; note 2
43 Ω
L9, L10
stripline; note 2
43 Ω
L11, L16
L12, L15
2 × grade 3B Ferroxcube wideband
HF chokes in parallel
4 turns enamelled 2 mm copper wire 85 nH
L13, L14
stripline; note 2
43 Ω
DIMENSIONS CATALOGUE NO.
2222 809 08003
2222 852 47104
2222 809 09006
length 57.5 mm
width 6 mm
length 29.5 mm
width 6 mm
length 14 mm
width 6 mm
length 6 mm
width 6 mm
length 17.5 mm
width 6 mm
4312 020 36642
length 13.5 mm
int. dia. 10 mm
leads 2 × 7 mm
length 19.5 mm
width 6 mm
1996 Oct 21
9
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