Download YZ21D Datasheet PDF
YZ21D page 2
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Datasheet Summary

isc Silicon NPN Darlington Power Transistor DESCRIPTION - High DC Current Gain- : hFE = 500(Min)@ IC= 2A - Collector-Emitter Sustaining Voltage- : VCEO(SUS) = 110V(Min) APPLICATIONS - Designed for general purpose amplifier and low speed switching...