參數(shù)資料
型號: 934019790115
廠商: NXP SEMICONDUCTORS
元件分類: 小信號晶體管
英文描述: UHF BAND, Si, NPN, RF SMALL SIGNAL TRANSISTOR
封裝: PLASTIC, SC-73, 4 PIN
文件頁數(shù): 10/12頁
文件大?。?/td> 102K
代理商: 934019790115
1996 May 09
7
Philips Semiconductors
Product specication
UHF power transistor
BLT81
List of components used in test circuit (see Figs 7 and 8)
Notes
1. American Technical Ceramics type 100B or capacitor of same quality.
2. The striplines are on a double copper-clad printed-circuit board, with PTFE fibre-glass dielectric (
ε
r = 2.2); thickness
1
16"; thickness of the copper sheet 35 m.
COMPONENT
DESCRIPTION
VALUE
DIMENSIONS
CATALOGUE No.
C1, C14
multilayer ceramic chip capacitor; note 1 100 pF
C2
multilayer ceramic chip capacitor; note 1 3 pF
C3, C5, C11, C13
lm dielectric trimmer
1.4 to 5.5 pF
2222 809 09004
C4
multilayer ceramic chip capacitor; note 1 5.6 pF
C6, C7, C10
multilayer ceramic chip capacitor; note 1 5.1 pF
C8
multilayer ceramic chip capacitor; note 1 3.6 pF
C9
multilayer ceramic chip capacitor; note 1 220 pF
C12
multilayer ceramic chip capacitor;
1 nF
L1
stripline; note 2
50
length 26.6 mm
width 4.85 mm
L2
10 turns enamelled 0.6 mm copper wire
250 nH
int. dia. 4.5 mm
leads 2
× 5mm
L3, L9
grade 3B Ferroxcube wideband
HF choke
4312 020 36640
L4
stripline; note 2
50
length 18 mm
width 4.85 mm
L5
stripline; note 2
75
length 3.5 mm
width 2.5 mm
L6
stripline; note 2
50
length 10 mm
width 4.85 mm
L7
4 turns enamelled 0.6 mm copper wire
65 nH
int. dia. 4.5 mm
leads 2
× 5mm
L8
stripline; note 2
50
length 15 mm
width 4.85 mm
L10
stripline; note 2
50
length 24.6 mm
width 4.85 mm
R1, R2
metal lm resistor
10
, 0.25 W
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