BD679A Transistor Datasheet

NPN BJT | ST

NPNSOT-32-3High Power
VCEO
80V
Ic Max
4A
Pd Max
40W
Gain
750
📄 View PDF Datasheet🛒 Buy from LCSC

Quick Reference

The BD679A is a NPN bipolar transistor in a SOT-32-3 package, designed for high power applications. It supports a breakdown voltage of 80V and continuous collector current of 4A. This component is widely used in NPN switching and linear amplification circuits.

Technical Specifications

ParameterValueDescription
ManufacturerSTOriginal Manufacturer
PackageSOT-32-3Physical mounting form factor
VCEO80VBreakdown voltage
IC Max4ACollector current
Pd Max40WPower dissipation
Gain750DC current gain
Frequency-Transition frequency
VCE(sat)2.8VSaturation voltage
Vebo-Emitter-Base voltage
Temp-Operating temperature range

Direct Replacements & Alternatives

Part NumberTypePackageVCEOIcPd
BD139-16 NPN SOT-32-3 80V 1.5A 12.5W
BD677 NPN SOT-32-3 60V 4A 40W
View all SOT-32-3 NPN Transistors ›