2N4123, 2N4124
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
OFF CHARACTERISTICS
Characteristic
Symbol
Min Max
Unit
Collector−Emitter Breakdown Voltage (Note 1)
(IC = 1.0 mAdc, IE = 0)
V(BR)CEO
Vdc
2N4123
30 −
2N4124
25 −
Collector−Base Breakdown Voltage
(IC = 10 mAdc, IE = 0)
V(BR)CBO
Vdc
2N4123
40 −
2N4124
30 −
Emitter−Base Breakdown Voltage
(IE = 10 mAdc, IC = 0)
Collector Cutoff Current
(VCB = 20 Vdc, IE = 0)
Emitter Cutoff Current
(VEB = 3.0 Vdc, IC = 0)
ON CHARACTERISTICS
V(BR)EBO
5.0
−
Vdc
ICBO
nAdc
− 50
IEBO
nAdc
− 50
DC Current Gain (Note 1)
(IC = 2.0 mAdc, VCE = 1.0 Vdc)
2N4123
2N4124
hFE
50 150
120 360
−
(IC = 50 mAdc, VCE = 1.0 Vdc)
Collector−Emitter Saturation Voltage (Note 1)
(IC = 50 mAdc, IB = 5.0 mAdc)
Base−Emitter Saturation Voltage (Note 1)
(IC = 50 mAdc, IB = 5.0 mAdc)
SMALL−SIGNAL CHARACTERISTICS
Current−Gain − Bandwidth Product
(IC = 10 mAdc, VCE = 20 Vdc, f = 100 MHz)
Input Capacitance
(VEB = 0.5 Vdc, IC = 0, f = 1.0 MHz)
Collector−Base Capacitance
(IE = 0, VCB = 5.0 V, f = 1.0 MHz)
Small−Signal Current Gain
(IC = 2.0 mAdc, VCE = 10 Vdc, RS = 10 k W, f = 1.0 kHz)
Current Gain − High Frequency
(IC = 10 mAdc, VCE = 20 Vdc, f = 100 MHz)
2N4123
2N4124
VCE(sat)
VBE(sat)
25 −
60 −
Vdc
− 0.3
Vdc
− 0.95
2N4123
2N4124
2N4123
2N4124
2N4123
2N4124
fT
Cibo
Ccb
hfe
|hfe|
250 −
300 −
− 8.0
− 4.0
50 200
120 480
2.5 −
3.0 −
MHz
pF
pF
−
−
(IC = 2.0 mAdc, VCE = 10 V, f = 1.0 kHz)
(IC = 2.0 mAdc, VCE = 10 V, f = 1.0 kHz)
Noise Figure
(IC = 100 mAdc, VCE = 5.0 Vdc, RS = 1.0 k W, f = 1.0 kHz)
1. Pulse Test: Pulse Width = 300 ms, Duty Cycle = 2.0%.
2N4123
2N4124
2N4123
2N4124
NF
50 200
120 480
− 6.0
− 5.0
dB
http://onsemi.com
2
