Datasheet

UNISONIC TECHNOLOGIES CO., LTD
MMBT4401
NPN SILICON TRANSISTOR
NPN GENERAL PURPOSE
AMPLIFIER
3
DESCRIPTION

2
The UTC MMBT4401 is designed for use as a medium power
amplifier and switch requiring collector currents up to 500mA.
1
SOT-23
(JEDEC TO-236)
3
2
1
SOT-323

ORDERING INFORMATION
Ordering Number
Note:

MMBT4401G-AE3-R
MMBT4401G-AL3-R
Pin Assignment: E: Emitter
B: Base
Package
SOT-23
SOT-323
Pin Assignment
1
2
3
E
B
C
E
B
C
Packing
Tape Reel
Tape Reel
C: Collector
MARKING
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Copyright © 2014 Unisonic Technologies Co., Ltd
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
NPN SILICON TRANSISTOR
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified) (Note)
PARAMETER
SYMBOL
RATINGS
UNIT
Collector-Base Voltage
VCBO
60
V
Collector-Emitter Voltage
VCEO
40
V
Emitter-Base Voltage
VEBO
6
V
Collector Current-Continuous
IC
600
mA
350
mW
Total Device Dissipation
PD
Derate above 25℃
2.8
mW/°C
Junction Temperature
TJ
+150
°C
Storage Temperature
TSTG
-40 ~ +150
°C
Note: 1. These are steady state limits. The factory should be consulted on applications involving pulsed or low duty
cycle operations.
2. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

THERMAL DATA (TA=25°C, unless otherwise specified)
CHARACTERISTIC
Junction to Ambient

SYMBOL
θJA
RATING
357
UNIT
°C/W
ELECTRICAL CHARACTERISTICS (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
OFF CHARACTERISTICS
Collector-Base Breakdown Voltage
BVCBO IC=0.1mA, IE=0
Collector-Emitter Breakdown Voltage (note)
BVCEO IC=1mA, IB=0
Emitter-Base Breakdown Voltage
BVEBO IE=0.1mA, IC=0
Collector Cut-off Current
ICEX
VCE=35V, VEB=0.4V
Base Cut-off Current
IBL
VCE=35V, VEB=0.4V
ON CHARACTERISTICS (note)
VCE=1V, IC=0.1mA
hFE1
hFE2
VCE=1V, IC=1mA
DC Current Gain
hFE3
VCE=1V, IC=10mA
hFE4
VCE=1V, IC=150mA
hFE5
VCE=2V, IC=500mA
VCE(SAT1) IC=150mA, IB=15mA
Collector-Emitter Saturation Voltage
VCE(SAT2) IC=500mA, IB=50mA
VBE(SAT1) IC=150mA, IB=15mA
Base-Emitter Saturation Voltage
VBE(SAT2) IC=500mA, IB=50mA
SMALL SIGNAL CHARACTERISTICS1
Current Gain Bandwidth Product
fT
VCE=10V, IC=20mA, f=100MHz
Collector-Base Capacitance
CCB
VCB=5V, IE=0, f=140kHz
Emitter-Base Capacitance
CEB
VBE=0.5V, IC=0, f=140kHz
Input Impedance
hIE
VCE=10V, IC=1mA, f=1kHz
Voltage Feedback Ratio
hRE
VCE=10V, IC=1mA, f=1kHz
Small-Signal Current Gain
hFE
VCE=10V, IC=1mA, f=1kHz
Output Admittance
hOE
VCE=10V, IC=1mA, f=1kHz
SWITCHING CHARACTERISTICS
VCC=30V, VEB=2V, IC=150mA
Delay Time
tD
IB1=15mA
VCC=30V, VEB=2V, IC=150mA
Rise Time
tR
IB1=15mA
Storage Time
tS
VCC=30V, IC=150mA
Fall Time
tF
IB1= IB2=15mA
Note: Pulse test: PulseWidth≤300s, Duty Cycle≤2%
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
TYP MAX UNIT
60
40
6
20
40
80
100
40
0.75
250
1
0.1
40
1
V
V
V
µA
µA
300
0.4
0.75
0.95
1.2
V
V
V
V
MHz
6.5
pF
30
pF
15
kΩ
8
×10-4
500
30 µmhos
15
ns
20
ns
225
ns
30
ns
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
NPN SILICON TRANSISTOR
TEST CIRCUIT
30V
200Ω
16V
0
1KΩ
≤220ns
500Ω
Figure1. Saturated Turn-On Switching Timer
-1.5V 6V
1k
Note:BVEBO=5V
30V
0
≤220ns
37Ω
1KΩ
50Ω
Figure2. Saturated Turn-Off Switching Timer
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VCE =5V
400
300
200
100
125 C
25 C
-40 C
0
0.1 0.3 1 3 10 30 100 300
Collector Current, IC (mA)
Collector-Emitter Voltage, VCESAT (V)
500
Typical Pulsed Current Gain
vs Collector Current
Collector-Emitter Saturation Voltage
vs Collector Current
0.4
β=10
0.3
125 C
0.2
25 C
0.1
-40 C
1
10
100
Collector Current, IC (mA)
500
Base-Emitter OnVoltage, VBEON (V)
Typical Pulsed Current Gain, hFE
TYPICAL CHARACTERISTICS
Base-Emitter Voltage, VBESAT (V)

NPN SILICON TRANSISTOR
500
Collector-Cutoff Current
vs Ambient Temperature
100
VCB=40V
10
Emitter Transition and Output
Capacitance vs Reverse Bias Voltage
20
f=1MHz
16
Cte
12
1
8
0.1
Cob
4
25
50
75
100 125 150
Ambient Temperature, TA(℃)
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0.1
1
10
Reverse Bias Voltage (V)
100
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TYPICAL CHARACTERISTICS(Cont.)
400
Turn On and Turn Off Times
vs Collector Current
320
IB1=IB2=
320
240
240
160
160
tS
80
toff
tF
tR
tD
ton
0
10
100
1000
Collector Current, IC (mA)
100
1000
Collector Current, IC (mA)
Char.Relative To Voltage at VCE=10V
Power Dissipation, PD (W)
Char.Relative To Voltage At
IC=10mA
0
10
IC
10
VCC =25V
VCC =25V
80
Switching Times
vs Collector Current
400
IC
IB1=IB2= 10
Char.Relative To Voltage at TA=25℃

NPN SILICON TRANSISTOR
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TYPICAL CHARACTERISTICS(Cont.)
IC, Collector Current (mA)

NPN SILICON TRANSISTOR
1400
1200
1000
800
600
400
200
100
80
60
40
20
0
S.O.A
1mS
1S
20
40
50
30
10
VCE, Collector-Emitter Voltage (Volts)
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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