參數(shù)資料
型號: BLW78
廠商: NXP SEMICONDUCTORS
元件分類: 功率晶體管
英文描述: HF/VHF power transistor
中文描述: VHF BAND, Si, NPN, RF POWER TRANSISTOR
封裝: CERAMIC, SOT-121B, 4 PIN
文件頁數(shù): 11/16頁
文件大?。?/td> 83K
代理商: BLW78
August 1986
11
Philips Semiconductors
Product specification
HF/VHF power transistor
BLW78
List of components:
C1 = 33 pF ceramic capacitor (500 V)
C2 = 100 pF air dielectric trimmer (single insulated rotor type)
C3 = 280 pF air dielectric trimmer (single non-insulated rotor type)
C4 = 180 pF polystyrene capacitor
C5 = C6 = C7 = 3,9 nF ceramic capacitor
C8 = 2
×
33 pF ceramic capacitors in parallel (500 V)
C9 = 330 nF polyester capacitor
C10 = 82 pF ceramic capacitor (500 V)
C11 = 100 pF air dielectric trimmer (single insulated rotor type)
C12 = 180 pF air dielectric trimmer (single non-insulated rotor type)
C13 = 150 pF polystyrene capacitor
C14 = 390 nF polyester capacitor
L1 = 72 nH; 3 turns Cu wire (1,0 mm); int. dia. 7 mm; length 4,8 mm; leads 2
×
5 mm
L2 = Cu strip (28 mm
×
5 mm
×
0,2 mm); 18 mm at 3 mm above printed-circuit board
L3 = Ferroxcube choke coil (cat. no. 4312 020 36640)
L4 = 300 nH; 6 turns Cu wire (1,5 mm); int. dia. 12 mm; length 16 mm; leads 2
×
5 mm
L5 = 330 nH; 7 turns Cu wire (1,5 mm); int. dia. 12 mm; length 20,8 mm; leads 2
×
5 mm
R1 = 1,5 k
(
±
5%) carbon resistor (0,5 W)
R2 = 100
(
±
5%) carbon resistor (0,5 W)
R3 = 68
(
±
5%) carbon resistor (0,5 W)
R4 = 100
wirewound potentiometer
R5 = 33
(
±
5%) carbon resistor (0,5 W)
R6 = 0,68
(
±
10%) wirewound resistor (7 W)
R7 = 120
wirewound resistor (8 W)
R8 = 10
(
±
10%) carbon resistor (0,5 W)
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