2N4401
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C unless otherwise noted)
Characteristic
OFF CHARACTERISTICS
Collector−Emitter Breakdown Voltage (Note 1)
(I
C
= 1.0 mAdc, I
B
= 0)
Collector−Base Breakdown Voltage
(I
C
= 0.1 mAdc, I
E
= 0)
Emitter−Base Breakdown Voltage
(I
E
= 0.1 mAdc, I
C
= 0)
Base Cutoff Current
(V
CE
= 35 Vdc, V
EB
= 0.4 Vdc)
Collector Cutoff Current
(V
CE
= 35 Vdc, V
EB
= 0.4 Vdc)
ON CHARACTERISTICS
(Note 1)
DC Current Gain
(I
C
= 0.1 mAdc, V
CE
= 1.0 Vdc)
(I
C
= 1.0 mAdc, V
CE
= 1.0 Vdc)
(I
C
= 10 mAdc, V
CE
= 1.0 Vdc)
(I
C
= 150 mAdc, V
CE
= 1.0 Vdc)
(I
C
= 500 mAdc, V
CE
= 2.0 Vdc)
Collector−Emitter Saturation Voltage (I
C
= 150 mAdc, I
B
= 15 mAdc)
Collector−Emitter Saturation Voltage
(I
C
= 500 mAdc, I
B
= 50 mAdc)
Base−Emitter Saturation Voltage (I
C
= 150 mAdc, I
B
= 15 mAdc)
Base−Emitter Saturation Voltage
(I
C
= 500 mAdc, I
B
= 50 mAdc)
SMALL−SIGNAL CHARACTERISTICS
Current−Gain − Bandwidth Product (I
C
= 20 mAdc, V
CE
= 10 Vdc, f = 100 MHz)
Collector−Base Capacitance (V
CB
= 5.0 Vdc, I
E
= 0, f = 1.0 MHz)
Emitter−Base Capacitance (V
EB
= 0.5 Vdc, I
C
= 0, f = 1.0 MHz)
Input Impedance (I
C
= 1.0 mAdc, V
CE
= 10 Vdc, f = 1.0 kHz)
Voltage Feedback Ratio (I
C
= 1.0 mAdc, V
CE
= 10 Vdc, f = 1.0 kHz)
Small−Signal Current Gain (I
C
= 1.0 mAdc, V
CE
= 10 Vdc, f = 1.0 kHz)
Output Admittance (I
C
= 1.0 mAdc, V
CE
= 10 Vdc, f = 1.0 kHz)
SWITCHING CHARACTERISTICS
Delay Time
Rise Time
Storage Time
Fall Time
(V
CC
= 30 Vdc, V
BE
= 2.0 Vdc,
I
C
= 150 mAdc, I
B1
= 15 mAdc)
(V
CC
= 30 Vdc, I
C
= 150 mAdc,
I
B1
= I
B2
= 15 mAdc)
t
d
t
r
t
s
t
f
−
−
−
−
15
20
225
30
ns
ns
ns
ns
f
T
C
cb
C
eb
h
ie
h
re
h
fe
h
oe
250
−
−
1.0
0.1
40
1.0
−
6.5
30
15
8.0
500
30
MHz
pF
pF
k ohms
X 10
−4
−
mmhos
h
FE
20
40
80
100
40
V
CE(sat)
V
BE(sat)
−
−
0.75
−
−
−
−
300
−
0.4
0.75
0.95
1.2
Vdc
Vdc
−
V
(BR)CEO
V
(BR)CBO
V
(BR)EBO
I
BEV
I
CEX
40
60
6.0
−
−
−
−
−
0.1
0.1
Vdc
Vdc
Vdc
mAdc
mAdc
Symbol
Min
Max
Unit
1. Pulse Test: Pulse Width
≤
300
ms,
Duty Cycle
≤
2.0%.
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