H21B3 - Fairchild Semiconductor

H21B3 PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH

The H21B1, H21B2 and H21B3 consist of a 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 reliability. The gap in the housing provides a means of interrupting the signal with an opaq.

Features

• Opaque housing
• Low cost
• .035" apertures
• High IC(ON) © 2002 Fairchild Semiconductor Corporation Page 1 of 6 6/13/02 PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH H21B1 H21B2 H21B3 ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise specified) Parameter Operating Temperature Storage Temperature Soldering Temperature (Iron)(2,3 and 4) Soldering Temperature INPUT (EMITTER) Continuous Forward Current Reverse Voltage Power Dissipation(1) OUTPUT (SENSOR) Collector to Emitter Voltage Emitter to Collector Voltage Collector Current Power Dissipation (TC = 25°C)(1) VCEO VECO IC PD 30 6 40 150 V.