BUY HD1A4A https://www.utsource.net/itm/p/8936213.html
HD1A4A NPN Bipolar Digital Transistor (BRT) 80V 1A 10k gain200-780 SOT-89/SC-62 marking LX High current drives IC output
Description: NPN Epitaxial Planar Silicon Transistor Features: High DC Current Gain Low Collector-Emitter Saturation Voltage High Reliability High Power Dissipation Low Noise Small Package Applications: Audio Amplifier High Frequency Amplifier Switching Applications (For reference only)