A42 Transistor Datasheet

NPN BJT | MSKSEMI

NPNSOT-89General Purpose
VCEO
305V
Ic Max
200mA
Pd Max
500mW
Gain
100
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Quick Reference

The A42 is a NPN bipolar transistor in a SOT-89 package, designed for general purpose applications. It supports a breakdown voltage of 305V and continuous collector current of 200mA. This component is widely used in NPN switching and linear amplification circuits.

Technical Specifications

ParameterValueDescription
ManufacturerMSKSEMIOriginal Manufacturer
PackageSOT-89Physical mounting form factor
VCEO305VBreakdown voltage
IC Max200mACollector current
Pd Max500mWPower dissipation
Gain100DC current gain
Frequency-Transition frequency
VCE(sat)-Saturation voltage
Vebo50MHzEmitter-Base voltage
Temp-55℃~+150℃Operating temperature range

Direct Replacements & Alternatives

Part NumberTypePackageVCEOIcPd
BF820-QR NPN SOT-89 300V 50mA 250mW
A42 NPN SOT-89 300V 300mA 500mW
View all SOT-89 NPN Transistors ›