BU931 Transistor Datasheet

NPN BJT | SPTECH

NPNTO-3High Power
VCEO
400V
Ic Max
15A
Pd Max
175W
Gain
300
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Quick Reference

The BU931 is a NPN bipolar transistor in a TO-3 package, designed for high power applications. It supports a breakdown voltage of 400V and continuous collector current of 15A. This component is widely used in NPN switching and linear amplification circuits.

Technical Specifications

ParameterValueDescription
ManufacturerSPTECHOriginal Manufacturer
PackageTO-3Physical mounting form factor
VCEO400VBreakdown voltage
IC Max15ACollector current
Pd Max175WPower dissipation
Gain300DC current gain
Frequency-Transition frequency
VCE(sat)1.8V@10A,250mASaturation voltage
Vebo-Emitter-Base voltage
Temp-65℃~+150℃Operating temperature range

Direct Replacements & Alternatives

Part NumberTypePackageVCEOIcPd
2SC3058 NPN TO-3 400V 30A 200W
2N6678 NPN TO-3 400V 15A 175W
BUX48A NPN TO-3 450V 15A 175W
2KW8629 NPN TO-3 500V 20A 150W
2SC2246 NPN TO-3 400V 15A 100W
MJ10012 NPN TO-3 400V 10A 175W
BU920 NPN TO-3 350V 10A 120W
View all TO-3 NPN Transistors ›