H21A6 switch equivalent, phototransistor optical interrupter switch.
* Opaque housing
* Low cost
* .035” apertures
* High IC(ON)
2001 Fairchild Semiconductor Corporation DS300291 6/05/01 1 OF 4 www.fairchildsemi.com
PHOT.
The H21A series are gallium arsenide infrared emitting diode coupled with a silicon photodarlington in a plastic housing. The packaging system is designed to optimize the mechanical resolution, coupling efficiency, ambient light rejection, cost and r.
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