H21LTB

OPTOLOGIC® OPTICAL INTERRUPTER SWITCH H21LTB 0.472 (12.0) 0.457 (11.6) C L H21LTI PACKAGE DIMENSIONS Ø 0.133 (3.4) Ø 0.126 (3.2) (2X) H21LOB H21LOI 0.249 (6.35) 0.243 (6.15) + E D + C L 0.39 (1.00) 0.34 (0.85) 0.755 (19.2) 0.745 (18.9) 0.129 (3.3) 0.119 (3.0) 0.103 (2.60) NOM 0.433 (11.0) 0.422 (10.7) Optical C L PART NUMBER DEFINITIONS H21LTB H21LTI H21LOB H21LOI Totem-pole, buffer output Totem-pole, inverter output Open-collector, buffer output Open-collector, inverter output 0.125 (3.2) 0.119 (3.0) C L 0.315 (8.0) INPUT/OUTPUT TABLE 0.055 (1.40) 0.045 (1.14) Part 0.110 (2.8) 0.091 (2.3) PIN 1 ANODE PIN 2 CATHODE 0.295 (7.5) 0.272 (6.9) 0.055 (1.40) 0.045 (1.14) Number H21LTB H21LTB H21LTI H21LTI H21LOB H21LOB H21LOI H21LOI LED On Off On Off On Off On Off Output High Low Low High High Low Low High 2 3 4 PIN 3 V CC PIN 4 V O 0.020 (0.51) (SQ) PIN 5 GND 1 5 NOTES: 1. Dimensions for all drawings are in inches (mm). 2. Tolerance of ± .010 (.25) on all non-nominal dimensions unless otherwise specified. 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 housi...