BUY NHE520 https://www.utsource.net/itm/p/11297611.html
HALL IC NHE520 SOT-143/SOT23-4 marking 1F5
Description: NHE520 is a NPN silicon epitaxial transistor manufactured by Nippon. It is a small signal transistor with a SOT-143/SOT23-4 package. Features: - Low collector-emitter saturation voltage - High current gain - High frequency operation - Low noise Applications: - Audio amplifiers - High speed switching - Low noise amplifiers - Voltage regulators (For reference only)