H21LTB Datasheet PDF - Fairchild

●Description

●The H21L series are slotted optical switches designed for multipurpose non contact sensing. They consist of a GaAs LED and a silicon OPTOLOGIC® sensor packaged in an injection molded housing and facing each other across a .124" (3.15 mm) gap. The output is either inverting or non-inverting, with a choice of totem-pole or open-collector configuration for TTL/CMOS compatibility.

●Features

●■ Low cost

●■ 0.035" apertures

●■ Black plastic opaque housing

●■ Mounting tabs on housing

●■ Choice of inverter or buffer output functions

●■ Choice of open-collector or totem-pole output configuration

●■ TTL/CMOS compatible output functions