MPS5179
2
Motorola Small–Signal Transistors, FETs and Diodes Device Data
ELECTRICAL CHARACTERISTICS
(TA = 25°C unless otherwise noted) (Continued)
Characteristic
Symbol Min Max Unit
SMALL–SIGNAL CHARACTERISTICS
Current–Gain — Bandwidth Product
(1)
(IC = 5.0 mAdc, VCE = 6.0 Vdc, f = 100 MHz)
f
T
900 2000 MHz
Collector–Base Capacitance
(VCB = 10 Vdc, IE = 0, f = 0.1 to 1.0 MHz)
C
cb
— 1.0 pF
Small Signal Current Gain
(IC = 2.0 mAdc, VCE = 6.0 Vdc, f = 1.0 kHz)
h
fe
25 300 —
Collector Base Time Constant
(IE = 2.0 mAdc, VCB = 6.0 Vdc, f = 31.9 MHz)
rb′C
c
3.0 14 ps
Noise Figure (See Figure 1)
(IC = 1.5 mAdc, VCE = 6.0 Vdc, RS = 50 ohms, f = 200 MHz)
NF — 5.0 dB
Common–Emitter Amplifier Power Gain (See Figure 1)
(VCE = 6.0 Vdc, IC = 5.0 mAdc, f = 200 MHz)
G
pe
15 — dB
1. fT is defined as the frequency at which |hfe| extrapolates to unity.
DC
COMMON
TYPE
1N3195
TYPE
1N3195
1200
91
FROM 50
Ω
SOURCE
1.0 – 5.0
L3
EXTERNAL
SHIELD
L2
2.0 – 10
C7
TO 50
Ω
LOAD
2.0 – 10
C6
0.1
µ
F
0.001
µ
F
RFC
1.0
µ
H
0.1
µ
F
1200
+V
CC
10 k
1200
–V
EE
C
in
3.0 – 35C22.0 – 10
L1
0.02
µ
F
Figure 1. 200 MHz Amplifier Power Gain
and Noise Figure Circuit
L1 1–3/4 Turns, #18 AWG, 0.5″ L, 0.5″ Diameter
L2 2 Turns, #16 AWG, 0.5″ L, 0.5″ Diameter
L3 2 Turns, #13 AWG, 0.25″ L, 0.5″ Diameter (Position 1/4″ from L2)
Q