參數(shù)資料
型號: 933978500112
廠商: NXP SEMICONDUCTORS
元件分類: 小信號晶體管
英文描述: UHF BAND, Si, N-CHANNEL, RF SMALL SIGNAL, MOSFET
封裝: CERAMIC PACKAGE-4
文件頁數(shù): 16/17頁
文件大小: 126K
代理商: 933978500112
November 1992
8
Philips Semiconductors
Product specication
UHF power MOS transistor
BLF521
List of components (class-AB test circuit)
Notes
1. American Technical Ceramics (ATC) capacitor, type 100B or other capacitor of the same quality.
2. American Technical Ceramics (ATC) capacitor, type 100A or other capacitor of the same quality.
3. The striplines are on a double copper-clad printed circuit board, with PTFE fibre-glass dielectric (
εr = 2.2),
thickness 1.6 mm.
COMPONENT
DESCRIPTION
VALUE
DIMENSIONS
CATALOGUE NO.
C1, C5, C8, C15
multilayer ceramic chip capacitor
(note 1)
390 pF, 500 V
C2, C13
lm dielectric trimmer
2 to 9 pF
2222 809 09002
C3
multilayer ceramic chip capacitor
(note 2)
5.6 pF, 500 V
C4
lm dielectric trimmer
2 to 18 pF
2222 809 09003
C6, C11
multilayer ceramic chip capacitor
2
× 100 nF in
parallel, 50 V
2222 852 47104
C7, C9
multilayer ceramic chip capacitor
100 nF, 50 V
2222 852 47104
C10
electrolytic capacitor
10
F, 63 V
2222 030 38109
C12
multilayer ceramic chip capacitor
(note 2)
9.1 pF, 50 V
C14
lm dielectric trimmer
1.4 to 5.5 pF
2222 809 09001
L1
stripline (note 3)
83
20
× 2mm
L2
stripline (note 3)
83
21
× 2mm
L3
stripline (note 3)
83
19
× 2mm
L4, L5
stripline (note 3)
67
12
× 3mm
L6
5 turns enamelled 0.5 mm copper
wire
62 nH
length 3.75 mm
int. dia. 3 mm
leads 2
× 4mm
L7
grade 3B Ferroxcube RF choke
4312 020 36642
L8
stripline (note 3)
83
18.6
× 2mm
L9
stripline (note 3)
83
31.6
× 2mm
L10
stripline (note 3)
83
2
× 2mm
R1
0.4 W metal lm resistor
274
2322 151 72741
R2
0.4 W metal lm resistor
1.96 k
2322 151 71962
R3
0.4 W metal lm resistor
1 M
2322 151 71005
R4
cermet potentiometer
5 k
R5
0.4 W metal lm resistor
7.5 k
2322 151 77502
R6
1 W metal lm resistor
10
2322 153 51009
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