參數資料
型號: MPF102
廠商: ON SEMICONDUCTOR
元件分類: 功率晶體管
英文描述: JFET VHF Amplifier
中文描述: VHF BAND, Si, N-CHANNEL, RF SMALL SIGNAL, JFET, TO-92
封裝: CASE 29-11, TO-226AA, 3 PIN
文件頁數: 2/8頁
文件大?。?/td> 270K
代理商: MPF102
2
Motorola Small–Signal Transistors, FETs and Diodes Device Data
P
POWER GAIN
2.0
ID, DRAIN CURRENT (mA)
Figure 1. Effects of Drain Current
4.0
24
8.0
12
16
20
0
4.0
6.0
8.0
10
12
14
f = 100 MHz
400 MHz
Tchannel = 25
°
C
VDS = 15 Vdc
VGS = 0 V
Figure 2. 100 MHz and 400 MHz Neutralized Test Circuit
*L1
17 turns, (approx. — depends upon circuit layout) AWG #28
enameled copper wire, close wound on 9/32
ceramic coil
form. Tuning provided by a powdered iron slug.
4–1/2 turns, AWG #18 enameled copper wire, 5/16
long,
3/8
I.D. (AIR CORE).
3–1/2 turns, AWG #18 enameled copper wire, 1/4
long,
3/8
I.D. (AIR CORE).
*
L2
*
L3
**L1
6 turns, (approx. — depends upon circuit layout) AWG #24
enameled copper wire, close wound on 7/32
ceramic coil
form. Tuning provided by an aluminum slug.
1 turn, AWG #16 enameled copper wire, 3/8
I.D.
(AIR CORE).
1/2 turn, AWG #16 enameled copper wire, 1/4
I.D.
(AIR CORE).
**
L2
**
L3
Adjust VGS for
ID = 50 mA
VGS < 0 Volts
NOTE:
The noise source is a hot–cold body
(AIL type 70 or equivalent) with a
test receiver (AIL type 136 or equivalent).
Reference
Designation
VALUE
100 MHz
400 MHz
C1
7.0 pF
1.8 pF
C2
1000 pF
17 pF
C3
3.0 pF
1.0 pF
C4
1–12 pF
0.8–8.0 pF
C5
1–12 pF
0.8–8.0 pF
C6
0.0015
μ
F
0.001
μ
F
C7
0.0015
μ
F
0.001
μ
F
L1
3.0
μ
H*
0.2
μ
H**
L2
0.15
μ
H*
0.03
μ
H**
L3
0.14
μ
H*
0.022
μ
H**
INPUT
TO 50
SOURCE
NEUTRALIZING
COIL
L1
C5
L3
Rg
C1
C6
C4
L2
C3
TO 500
LOAD
CASE
C7
COMMON
VDS
+15 V
ID = 5.0 mA
VGS
C2
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