MMDT5210W…MMDT521ZW NPN Silicon Epitaxial Planar.
SEMTECH ELECTRONICS
MMDT521DW - (MMDT5210W - MMDT5212ZW) NPN Silicon Epitaxial Planar Digital Transistor
MMDT5210W…MMDT521ZW NPN Silicon Epitaxial Planar Digital Transistor Collector (Output) Base (Input) R1 R2 Emitter (Common) Resistance Values Type MM.
