Bipolar Transistors - BJT PNP Medium Power Transistor for Switching. UMT4403U3 is a transistor for audio frequency small signal amplifier. Complementary is the SST4401-UMT4401U3.
Bipolar Transistors - BJT PNP Medium Power Transistor for Switching (AEC-Q101 Qualified). UMT4403U3HZG is a transistor for audio frequency small signal amplifier. Complementary is the UMT4401U3 HZG