參數(shù)資料
型號: 933817030112
廠商: NXP SEMICONDUCTORS
元件分類: 功率晶體管
英文描述: VHF BAND, Si, N-CHANNEL, RF POWER, MOSFET
封裝: CERAMIC PACKAGE-4
文件頁數(shù): 9/11頁
文件大小: 81K
代理商: 933817030112
September 1992
7
Philips Semiconductors
Product specication
HF/VHF power MOS transistor
BLF242
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 on a double copper-clad printed circuit board, with epoxy fibre-glass dielectric (
εr = 4.5),
thickness 1
16 inch.
COMPONENT
DESCRIPTION
VALUE
DIMENSIONS
CATALOGUE NO.
C1, C2, C7
lm dielectric trimmer
4 to 40 pF
2222 809 08002
C3
multilayer ceramic chip capacitor
(note 1)
100 pF
C4, C8
ceramic chip capacitor
100 nF
2222 852 47104
C6
lm dielectric trimmer
5 to 60 pF
2222 809 08003
C9
electrolytic capacitor
2.2
F, 40 V
L1
5 turns enamelled 0.7 mm copper wire
53 nH
length 5.4 mm
int. dia. 3 mm
leads 2
× 5mm
L2, L3
stripline (note 2)
30
10
× 6mm
L4
11 turns enamelled 1 mm copper wire
500 nH
length 15.5 mm
int. dia. 8 mm
leads 2
× 5mm
L5
5 turns enamelled 1 mm copper wire
79 nH
length 9.1 mm
int. dia. 5 mm
leads 2
× 5mm
L6
grade 3B Ferroxcube RF choke
4312 020 36640
R1
0.5 W metal lm resistor
47
R2
0.5 W metal lm resistor
10
Fig.11 Test circuit for class-B operation.
f = 175 MHz.
handbook, full pagewidth
MGP145
input
50
C1
C3
L6
R2
L1
L2
D.U.T.
L3
L5
+VG
L4
R1
C2
C7
C8
C9
+VD
C6
C5
output
50
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