RoHS

SMBT445V6ACOMPLIANTNPN Transistor with Zener DiodeFeatures● Epoxy meets UL-94 V-0 flammability rating● Surface mount package ideally Suited for Automatic Insertion● NPN+Zener

Mechanical Data
● Package: SOT-23-6L● Terminals: Tin plated leads, solderable per
J-STD-002 and JESD22-B102● Marking: 4456A■Equivalent circuit■ Ordering Information (Example)
PREFERED P/N

PACKINGCODE

UNIT WEIGHT(mg)

MINIMUM
PACKAGE(pcs)

INNER BOXQUANTITY(pcs)

OUTER CARTONQUANTITY(pcs)

DELIVERY MODE

SMBT445V6A

F2Approximate 15.6300030000

120000

7” reel■ Thermal Characteristics(Ta=25℃ Unless otherwise specified）
Item

SymbolUnitConditions

Value

Total Device Dissipation(Per device)

PDmW

500

Junction Temperature

Tj℃-55 to +150

Storage Temperature

TSTG

℃

-55 to +150

1/7
S-S6443
Rev.1.1,09-Aug-24

Yangzhou Yangjie Electronic Technology Co., Ltd.

www.21yangjie.com

SMBT445V6A■NPN Transisitor Pin2、3、4 Maximum Ratings (Ta=25℃ Unless otherwise specified）
Item

SymbolUnitConditions

Value

Collector-Base Voltage

VCBO

V

IC=10μA,IE=050

Collector-Emitter Voltage

VCEOVIC=10mA,IB=045

Emitter-Base Voltage

VEBO

V

IE=1μA,IC=05

Collector Current -Continuous

ICmA500■NPN Transisitor Pin2、3、4 Electrical Characteristics (Ta=25℃ unless otherwise specified)
Item

SymbolUnitConditions

Min

Collector-base breakdown voltage

VCBO

V

IC=10μA,IE=050

Collector-emitter breakdown voltage

VCEO

V

IC=10mA,IB=045

Emitter-base breakdown voltage

VEBO

V

IE=1μA,IC=05

Collector-base cut-off current

ICBOuA

VCE=45V,IE=00.1

Emitter-base cut-off current

IEBO

uA

VBE=4V,IC=00.1

hFE1

VCE=1V,IC=100mA

250

hFE2

VCE=1V,IC=500mA

40TYP

Max

600

DC current gainCollector-emitter saturation voltage

VCE(sat)

V

IC=500mA,IB=50mA

0.7

Base-emitter saturation voltage

VBE(sat)

V

IC=500mA,IB=50mA

1.2

Base-emitter saturation voltage

VBE

V

VCE=1V,IC=500mA

1.2

Collector-base output capacitance

CobpF

VCB=10V,f=1MHzTransition frequency

fTMHz

VCE=5V,IC=10mA,f=100MHz

10100

2/7
S-S6443
Rev.1.1,09-Aug-24

Yangzhou Yangjie Electronic Technology Co., Ltd.

www.21yangjie.com

SMBT445V6A■Zener Diode Pin1、6 Maximum Ratings (Ta=25℃ Unless otherwise specified）
PARAMETERSYMBOLUNIT

VALUEVFV

0.9

Maximum Forward Voltage @IF=10mA■Zener Diode Pin1、6 Electrical Characteristics (Ta=25℃ unless otherwise specified)Type Number
SMBT445V6A

Vz at IzT (V)

IR(μA)@VR

min.

typ.

max.

IZT(uA)

max

VR(V)

5.32

5.6

5.88

50

104

■ Thermal Characteristics
Parameter

Symbol

Unit

Value

Thermal resistance, junction-to-ambient (Note1)

RθJ-A℃/W

250

Thermal resistance, junction-to-case (Note1)

RθJ-C℃/W

200

Note1: Device mounted on PCB(25.4*25.4*1.5mm), single-sided copper,with standard footprint.

■ Zener Diode Pin1、6 Characteristics (Typical)

3/7
S-S6443
Rev.1.1,09-Aug-24

Yangzhou Yangjie Electronic Technology Co., Ltd.

www.21yangjie.com

SMBT445V6A■ NPN Transisitor Pin2、3、4 Characteristics (Typical)
Fig 1：Static Characteristics
500

Fig 2：DC Current Gain
1000

3mA
2.7mA
2.4mA
2.1mA

Ta=25℃

VCE= 1V

1.8mA

400

Ta= 125℃

1.2mA

DC Current Gain hFECollector Current Ic(mA)

1.5mA

300

0.9mA

200

0.6mA

Ta= 100℃

Ta= 25℃

Ta= ‐25℃Ib=0.3mA

100100

000.5

11.5

20.1

2.5

110100

Collector Current Ic(mA)

Collect‐Emitter Voltage VCE(V)Fig 3：Collector-Emitter Saturation Voltage

Fig 4：Base-Emitter Saturation Voltage

11Base‐Emitter Voltage VBEsat(V)Collector‐Emitter Voltage VCEsat(V)

Ic:Ib=10:1

0.1

Ta= 100℃
Ta= 125℃

Ic:Ib=10:1

Ta= 25℃

Ta= ‐25℃

0.01
0.1

1

100.1

100

0.1

Collector Current Ic(mA)

110100

Collector Current Ic(mA)

Fig 5：Base-Emitter On Voltage

Fig 6：Cob/Cib-VCB/VEB
100

fT=1MHz
Ta=25℃100Capacitance C(pF)

Collector Current Ic(mA)

Cib1010Cob1

VCE= 1V
10.1
00.2

0.4

0.6

0.8

11.20.1

Base‐Emitter Voltage VBE（V）

110Reverse Voltage VR (V)4/7
S-S6443
Rev.1.1,09-Aug-24

Yangzhou Yangjie Electronic Technology Co., Ltd.

www.21yangjie.com

SMBT445V6A
Fig 7：PD-Ta Curve
600

Power Dissipation PD(mW)

500

400

300

200

10000255075

100125150

Ambient Tempeature Ta(℃)

5/7
S-S6443
Rev.1.1,09-Aug-24

Yangzhou Yangjie Electronic Technology Co., Ltd.

www.21yangjie.com

SMBT445V6A■SOT-23-6L Package information■ Suggested Pad Layout

6/7S-S6443
Rev.1.1,09-Aug-24

Yangzhou Yangjie Electronic Technology Co., Ltd.

www.21yangjie.com

SMBT445V6ADisclaimer
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 as
medical 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.

7/7
S-S6443
Rev.1.1,09-Aug-24

Yangzhou Yangjie Electronic Technology Co., Ltd.

www.21yangjie.com