The NTE377 (NPN) and NTE378 (PNP) are silicon complementary transistors in a TO220 type package designed for general purpose power amplification and switching such as output or driver stages in applications such as switching regulators, converters, and power amplifiers.
Full spec sheet:
https://www.nteinc.com/specs/300to399/pdf/nte377.pdf
NTE377 NPN 80V 10A TO-220 Power AMP Driver + Output
SKU: NTE377
$2.53Price