BD438 Transistor Datasheet

PNP BJT | ST

PNPTO-126-3High Power
VCEO
45V
Ic Max
4A
Pd Max
36W
Gain
130
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Quick Reference

The BD438 is a PNP bipolar transistor in a TO-126-3 package, designed for high power applications. It supports a breakdown voltage of 45V and continuous collector current of 4A. This component is widely used in PNP switching and linear amplification circuits.

Technical Specifications

ParameterValueDescription
ManufacturerSTOriginal Manufacturer
PackageTO-126-3Physical mounting form factor
VCEO45VBreakdown voltage
IC Max4ACollector current
Pd Max36WPower dissipation
Gain130DC current gain
Frequency-Transition frequency
VCE(sat)-Saturation voltage
Vebo3MHzEmitter-Base voltage
Temp-65℃~+150℃Operating temperature range

Direct Replacements & Alternatives

Part NumberTypePackageVCEOIcPd
BD438S PNP TO-126-3 45V 4A 36W
View all TO-126-3 PNP Transistors ›