BUF420A Transistor Datasheet

NPN BJT | SPTECH

NPNTO-3PNHigh Power
VCEO
450V
Ic Max
30A
Pd Max
200W
Gain
50
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Quick Reference

The BUF420A is a NPN bipolar transistor in a TO-3PN package, designed for high power applications. It supports a breakdown voltage of 450V and continuous collector current of 30A. This component is widely used in NPN switching and linear amplification circuits.

Technical Specifications

ParameterValueDescription
ManufacturerSPTECHOriginal Manufacturer
PackageTO-3PNPhysical mounting form factor
VCEO450VBreakdown voltage
IC Max30ACollector current
Pd Max200WPower dissipation
Gain50DC current gain
Frequency20MHzTransition frequency
VCE(sat)800mVSaturation voltage
Vebo7VEmitter-Base voltage
Temp-Operating temperature range

Direct Replacements & Alternatives

Part NumberTypePackageVCEOIcPd
2SC4138 NPN TO-3PN 400V 10A 80W
2SC4110 NPN TO-3PN 400V 25A 160W
3DD13009AN NPN TO-3PN 400V 12A 120W
2SC2751 NPN TO-3PN 400V 15A 120W
2SC3320 NPN TO-3PN 400V 15A 80W
2SC2625 NPN TO-3PN 400V 10A 80W
TIP160 NPN TO-3PN 320V 10A 125W
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