The UTC MMBT4403 is designed for use as a general purpose amplifier and switch requiring collector currents up to 500mA. 2 1 SOT-23 (JEDEC TO-236) 3 12 SOT-323.
Datasheets by Manufacturer
MMBT4403 — Diotec Semiconductor — Surface Mount General Purpose Si-Epi-Planar Transistors
MMBT4401W — JR Electronics — NPN Silicon General Purpose Transistor