The NTE331 (NPN) and NTE332 (PNP) are silicon epitaxial–base complementary power transistors in a TO–220 plastic package intended for use in power linear and switching applications.
Full spec sheet:
https://www.nteinc.com/specs/300to399/pdf/nte331.pdf
NTE331 NPN 100V 15A TO-220 Audio Power AMP + Switch
SKU: NTE331
$3.66Price