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參數(shù)資料
| 型號： | 933978520112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 功率晶體管 |
| 英文描述： | 2 CHANNEL, VHF BAND, Si, N-CHANNEL, RF POWER, MOSFET |
| 封裝： | CERAMIC PACKAGE-4 |
| 文件頁數(shù)： | 9/21頁 |
| 文件大?。?/td> | 179K |
| 代理商： | 933978520112 |
1996 Oct 21
17
Philips Semiconductors
Product Specication
VHF push-pull power MOS transistor
BLF278
Notes
1. American Technical Ceramics capacitor, type 100B or other capacitor of the same quality.
2. L1, L3 to L13, L18 to L22 and L24 are microstriplines on a double copper-clad printed-circuit board, with fibre-glass
reinforced PTFE dielectric (
εr = 2.2), thickness 116 inch; thickness of copper sheet 2 × 35 m.
3. L2 and L23 are soldered on to striplines L1 and L24 respectively.
L14, L17
2
× grade 3B Ferroxcube
wideband HF chokes in parallel
4312 020 36642
L15, L16
13
4 turns enamelled 2 mm copper
wire
40 nH
int. dia. 10 mm
leads 2
× 7mm
space 1 mm
L18, L19
stripline; note 2
43
length 13 mm
width 6 mm
L20, L21
stripline; note 2
43
length 29.5 mm
width 6 mm
R1
metal lm resistor
10
, 0.4 W
R2, R7
10 turns potentiometer
50 k
R3, R6
metal lm resistor
1 k
, 0.4 W
R4, R5
metal lm resistor
2
× 5.62 , in
parallel, 0.4 W
R8, R9
metal lm resistor
10
±5%, 1 W
R10
metal lm resistor
4
× 42.2 in
parallel, 1 W
R11
metal lm resistor
5.11 k
, 1W
IC1
voltage regulator 78L05
COMPONENT
DESCRIPTION
VALUE
DIMENSIONS
CATALOGUE NO.
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