2N6678 Datasheet & Equivalents

NPN TO-3 High Power SPTECH
VCEO
400V
Ic Max
15A
Pd Max
175W
hFE Gain
8

Quick Reference

The 2N6678 is a NPN bipolar junction transistor in a TO-3 package, manufactured by SPTECH. It supports a breakdown voltage of 400V and continuous collector current of 15A. It is widely used in switching and amplification circuits.

Technical Specifications

ParameterValueDescription
ManufacturerSPTECHOriginal Manufacturer
PackageTO-3Physical mounting
Transistor TypeBJTBipolar Junction Transistor
CategorySingleConfiguration
Collector-Emitter Voltage (VCEO)400VMax breakdown voltage
Collector Current (Ic)15AMax current handling
Power Dissipation (Pd)175WMax thermal limit
DC Current Gain (hFE)8Base signal amplification ratio
Transition Frequency (fT)3MHzMax operating frequency
Saturation Voltage (VCEsat)1.5VVoltage drop when fully ON
Emitter-Base Voltage (Vebo)8VMax emitter-base breakdown
Collector Cutoff Current-Leakage current when OFF
Operating Temp-Safe junction temperature range

Equivalent Transistors & Alternatives

PartTypePackageVCEOIChFEPdManufacturer / Datasheet
2SC2246 NPN TO-3 400V 15A 6 100W
BU931 NPN TO-3 400V 15A 300 175W
2SC3058 NPN TO-3 400V 30A 40 200W
BUX48A NPN TO-3 450V 15A 8 175W
2KW8629 NPN TO-3 500V 20A 60 150W