Part Number	H21A5
Manufacturer	Fairchild Semiconductor
Overview	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, coupli. * Opaque housing * Low cost * .035” apertures * High IC(ON)  2001 Fairchild Semiconductor Corporation DS300291 6/05/01 1 OF 4 www.fairchildsemi.com PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH H21A4 ABSOLUTE MAXIMUM RATINGS Parameter Operating Temperature Storage Temperature Soldering Temperature (I.