RoHSMMBTA42COMPLIANTNPN TransistorFeatures●Epoxy meets UL-94 V-0 flammability rating●Halogen free available upon request by adding suffix ”HF”
●Moitsure Sensitivity Level 1●High Conductance●Surface Mount Package Ideally Suited for AutomaticInsertion

Mechanical Data

● Package: SOT-23
Molding compound meets UL 94 V-0 flammability rating,
RoHS-compliant, halogen-free● Terminals: Tin plated leads, solderable per
J-STD-002 and JESD22-B102● Marking: 1D■ Maximum Ratings (Ta=25℃ unless otherwise noted)
ItemSymbolUnitValue

Collector-Base Voltage

VCBOV300

Collector-Emitter Voltage

VCEO

V

300

Emitter-Base Voltage

VEBO

V

5Collector Current

ICmA

500

Collector Power Dissipation

PcmW

350

Thermal Resistance From Junction To AmbientRθJA℃/W

357

Operation Junction Temperature

Tj℃

150

Storage Temperature

Tstg℃-55 to +150

■ Ordering Information (Example)
PREFERED P/N

PACKINGCODE

UNIT WEIGHT(g)MINIMUM
PACKAGE(pcs)

INNER BOXQUANTITY(pcs)

OUTER CARTONQUANTITY(pcs)

DELIVERY MODE

MMBTA42F2

Approximate 0.008

3000

30000

120000

7” reel

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RoHS

MMBTA42COMPLIANT■ Electrical Characteristics (Ta=25℃ unless otherwise noted)
Item

SymbolUnit

Collector-base breakdown voltage

VCBO

V

IC= 100uA,IE=0300

Collector-emitter breakdown voltageV)CEOV

IC= 1mA, IB=0300

Emitter-base breakdown voltage

VEBO

V

IE= 100uA, IC=05

Collector-base cut-off current

ICBOuA

VCB=200V, IE =00.5

Emitter-base cut-off current

IEBOuA

VEB=5 V , IC=00.5

DC current gainConditions

MinhFE（1）VCE= 10V, IC= 1mA25hFE（2）VCE= 10V, IC=10mA

40hFE（3）

VCE=10V, IC=30mA

40TypMax

300

Collector-emitter saturation voltage

VCE(sat)V

IC=20mA, IB= 2mA

0.5

Base-emitter saturation voltage

VBE(sat)V

IC=20mA, IB= 2mA

1.0

fT

MHz

VCE=20V,IC=10mA,f=30MHzTransition frequency

50■ Characteristics (Typical)

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MMBTA42RoHSCOMPLIANT

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MMBTA42RoHSCOMPLIANT■SOT-23 Package Outline Dimensions■SOT-23 Soldering Footprint

4/5
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MMBTA42RoHSCOMPLIANT

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 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.

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