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): 2/21頁
文件大?。?/td> 179K
代理商: 933978520112
1996 Oct 21
10
Philips Semiconductors
Product Specication
VHF push-pull power MOS transistor
BLF278
Notes
1. American Technical Ceramics capacitor, type 100B or capacitor of same quality.
2. L1 to L10, L13, L14, L17 to L21 and L23 are striplines on a double copper-clad printed-circuit board, with fibre-glass
PTFE dielectric (
εr = 2.2), thickness 116 inch; thickness of copper sheet 2 × 35 m.
3. L22 is soldered on to stripline L21.
L17, L18
stripline; note 2
43
length 24.5 mm
width 6 mm
L19, L20
stripline; note 2
43
length 66 mm
width 6 mm
L21, L23
stripline; note 2
50
length 160 mm
width 4.8 mm
L22
semi-rigid cable; note 3
50
ext. dia. 3.6 mm
outer conductor
length 160 mm
R1
metal lm resistor
10
, 0.4 W
R2, R7
10 turn potentiometer
50 k
R3, R6
metal lm resistor
3
× 12.1 in
parallel, 0.4 W
R4, R5
metal lm resistor
10
; 0.4 W
R8, R9
metal lm resistor
10
±5%, 1 W
R10
metal lm resistor
4
× 10 in
parallel, 1 W
R11
metal lm resistor
5.11 k
, 1W
IC1
voltage regulator 78L05
T1
1:1 Balun; 7 turns type 4C6 50
coaxial cable wound around toroid
14
× 9 × 5 mm
4322 020 90770
COMPONENT
DESCRIPTION
VALUE
DIMENSIONS
CATALOGUE NO.
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