BUY KRC404 https://www.utsource.net/itm/p/11275085.html
KRC404 NPN Bipolar Digital Transistor (BRT) 100mA/0.1A 47k 47k SOT-323/SC-70/USM marking ND switch interface circuit driver circuit
Description: NPN Silicon Epitaxial Planar Transistor
Features:
Low collector-emitter saturation voltage
High current gain
Low noise
High switching speed
High breakdown voltage
Low collector-emitter leakage current
High reliability
Applications:
Audio amplifiers
High speed switching
High voltage switching
Low noise amplifiers
Voltage regulators
(For reference only)