RoHSCOMPLIANT

MMBT4401
NPN General Purpose AmplifierFeatures
 Moisture sensitivity level 1
 Halogen free and RoHS compliant
 Surface mount package ideally suited forautomatic insertion
Application
 Signal amplification
 Switching circuit
Mechanical data Package： SOT-23
 Terminals：Tin plated leads, solderable
J-STD-002 and JESD22-B102

per■ Maximum Ratings (Ta=25℃ Unless otherwise specified)
Item

SymbolUnit

Conditions

Device marking code

Value
2X

Collector-base voltage

VCBOV

IC=10mA,IE=060

Collector-emitter voltage

VCEOV

IC =1mA,IB=040

Emitter-base voltage

VEBO

V

IE=100μA,IC=06

Collector current

ICmA

600

Power dissipation

PDmW

300

Junction temperature

TJ℃-55 to +150

Storage temperature

TSTG℃-55 to +150

1/6

S-S265
Rev. 2.6, 03-Feb-24

Yangzhou Yangjie Electronic Technology Co., Ltd.

www.21yangjie.com

MMBT4401■ Electrical Characteristics (Ta=25℃ Unless otherwise specified)
Item

SymbolUnit

Conditions

Min

Collector-base breakdown voltage

V(BR)CBOV

IC=10mA,IE=060

Collector-emitter breakdown voltage

V(BR)CEOVIC =1mA,IB=040

Emitter-base breakdown voltage

V(BR)EBOV

IE=100μA,IC=06

Collector-base cut-off current

ICBOnA

VCB=60V

100

Collector-emitter cut-off current

ICEOnA

VCE=35V

100

Emitter-base cut-off current

IEBOnA

VEB=3V100

DC current gainhFE

VCE=1V,IC=150mA

TypMax100

300

Collector-emitter saturation voltage

VCE(sat)V

IC=150mA,IB=15mA

0.4

Base-emitter saturation voltage

VBE(sat)V

IC=150mA,IB=15mA

0.95

Transition frequency

fT

MHz

VCE=10V,IC=20mA,f=100MHz

Delay timetdns

VCC=30V, IC=150mA, VBE=0.2V,

15Rise timetrnsIB1=15mA

20

Storage time

tsns

250

225
VCC=30V, IC=150mA, IB1=-IB2=15mA

Fall timetfns60■ Thermal Characteristics
Parameter

Symbol

Unit

Value

Thermal resistance, junction-to-ambientRθJ-A(1)℃/W

417

Thermal resistance, junction-to-case

RθJ-C(1)

℃/W

334

Note:
（1）Device mounted on PCB, single-sided copper，with standard footprint

2/6

S-S265
Rev. 2.6, 03-Feb-24

Yangzhou Yangjie Electronic Technology Co., Ltd.

www.21yangjie.com

MMBT4401■Characteristics
Fig 1：Static Characteristics

Fig 2：DC Current Gain
10001000.5mA

Ta=25℃

0.45mA

Ta= 125℃

VCE= 1V

Ta= 100℃

0.35mADC Current Gain hFECollector Current Ic(mA)

0.4mA

0.3mA
50

0.25mA
0.2mA

Ta= 25℃
Ta= ‐25℃
1000.15mA
0.1mA
Ib=0.05mA
10001

2

3

40.1

1

Collect‐Emitter Voltage VCE(V)

10600

100

Collector Current Ic(mA)

Fig 3：Collector-Emitter Saturation Voltage

Fig 4：Base-Emitter Saturation Voltage
11

Base‐Emitter Voltage VBEsat(V)Collector‐Emitter Voltage VCEsat(V)

Ic:Ib=10:1

Ta= 125℃
0.1

Ta= 100℃
Ta= 25℃
Ta= ‐25℃

Ic:Ib=10:1
0.1

0.01
0.1

1

100.1

600

100

110

Collector Current Ic(mA)

Collector Current Ic(mA)

Fig 5：Base-Emitter On Voltage

Fig 6：Cob/Cib-VCB/VEB
100

600

fT=1MHz
Ta=25℃

100

Cib

Capacitance C(pF)

Collector Current Ic(mA)

600

100

1010Cob

1VCE= 1V
10.1
00.2

0.4

0.6

0.8

1

1.2

0.1

Base‐Emitter Voltage VBE（V）

110Reverse Voltage VR (V)

3/6

S-S265
Rev. 2.6, 03-Feb-24

Yangzhou Yangjie Electronic Technology Co., Ltd.

www.21yangjie.com

MMBT4401
Fig 7：PD-Ta Curve
400

Power Dissipation PD(mW)

300

20010000255075100125150

Ambient Tempeature Ta(℃)

4/6

S-S265
Rev. 2.6, 03-Feb-24

Yangzhou Yangjie Electronic Technology Co., Ltd.

www.21yangjie.com

MMBT4401■Ordering Information

Preferred P/N

Packing
code

Unit weight(g)Minimumpackage(pcs)

Inner box
quantity(pcs)

Outer carton
quantity(pcs)

Delivery mode

MMBT4401

F2

Approximate 0.008

3000

30000

120000

7” reel

MMBT4401

F4

Approximate 0.008

10000/210000

13” reel■ Outline Dimensions■ Suggested Pad Layout

5/6

S-S265
Rev. 2.6, 03-Feb-24

Yangzhou Yangjie Electronic Technology Co., Ltd.

www.21yangjie.com

MMBT4401
Disclaimer
The information presented in this document is for reference only. Yangzhou Yangjie Electronic Technology Co., Ltd. reserves theright to make changes without notice for the specification of the products displayed herein to improve reliability, function, or design
or otherwise.
The product listed herein is designed to be used with ordinary electronic equipment or devices, and not designed to be used withequipment or devices which require high level of reliability and the malfunction of with would directly endanger human life (such asmedical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safetydevices), Yangjie or anyone on its behalf, assumes no responsibility or liability for any damages resulting from such improper useof sale.
This publication supersedes & replaces all information previously supplied. For additional information, please visit our website
http:// www.21yangjie.com , or consult your nearest Yangjie’s sales office for further assistance.

6/6

S-S265
Rev. 2.6, 03-Feb-24

Yangzhou Yangjie Electronic Technology Co., Ltd.

www.21yangjie.com