The NTE379 is a silicon NPN transistor in a TO220 type package designed for high–voltage, high– speed power switching inductive circuits where fall time is critical. This device is particularly suited for 115 and 220V switch–mode applications such as Switching Regulators, Inverters, Motor Controls, Solenoid/Relay drivers, and Deflection circuits.
 
Full spec sheet:
https://www.nteinc.com/specs/300to399/pdf/nte379.pdf