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2N4401 / MMBT4401
NPN General-Purpose Amplifier
Description
This device is designed for use as a medium power
amplifier and switch requiring collector currents up to
500 mA.
November 2014
EBC
TO-92
Figure 1. 2N4401 Device Package
C
SOT-23
Mark:2X
E
B
Figure 2. MMBT4401 Device Package
Ordering Information
Part Number
2N4401BU
2N4401TF
2N4401TFR
2N4401TA
2N4401TAR
MMBT4401
Marking
2N4401
2N4401
2N4401
2N4401
2N4401
2X
Package
TO-92 3L
TO-92 3L
TO-92 3L
TO-92 3L
TO-92 3L
SOT-23 3L
Packing Method
Bulk
Tape and Reel
Tape and Reel
Ammo
Ammo
Tape and Reel
© 2001 Fairchild Semiconductor Corporation
2N4401 / MMBT4401 Rev. 1.1.0
www.fairchildsemi.com
Typical Performance Characteristics (Continued)
400
IB1= IB2=
Ic
10
320
V cc = 25 V
240
160
80
0
10
t off
t on
100
I C - COLLECTOR CURRENT (mA)
1000
Figure 9. Turn-On and Turn-Off Times vs.
Collector Current
1
0.75 TO-92
0.5
SOT-23
0.25
SOT-223
0
0 25 50 75 100 125 150
TEMPERATURE (oC)
Figure 11. Power Dissipation vs.
Ambient Temperature
400
IB1=
I B2 =
Ic
10
320
V cc = 25 V
240
160
80
0
10
ts
tr
tf
td
100
I C - COLLECTOR CURRENT (mA)
1000
Figure 10. Switching Times vs.Collector Current
8 VCE = 10 V
T A = 25oC
6
4
hoe
h re
2
h fe
h ie
0
0 10 20 30 40 50
I C - COLLECTOR CURRENT (mA)
60
Figure 12. Common Emitter Characteristics
2.4
VCE = 10 V
2 I C = 10 mA
1.6
1.2
hre hie
hfe
hoe
0.8
0.4
0
0 20 40 60 80 100
T A - AMBIENT TEMPERATURE (o C)
Figure 13. Common Emitter Characteristics
1.3
1.25
1.2
1.15
1.1
1.05
1
0.95
0.9
0.85
0.8
0.75
0
I C= 10 mA
T A = 25oC
h fe
h ie
h re
hoe
5 10 15 20 25 30
VCE - COLLECTOR VOLTAGE (V)
35
Figure 14. Common Emitter Characteristics
© 2001 Fairchild Semiconductor Corporation
2N4401 / MMBT4401 Rev. 1.1.0
5
www.fairchildsemi.com