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H21LTB - OPTOLOGIC OPTICAL INTERRUPTER SWITCH

General 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.

Key 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  2001 Fairchild Semiconductor Corporation DS300294 5/29/01 1 OF 8 www. fairchildsemi. com.

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Other Datasheets by Fairchild (onsemi)

Part Number Description
H21LTI OPTOLOGIC OPTICAL INTERRUPTER SWITCH
H21LOB OPTOLOGIC OPTICAL INTERRUPTER SWITCH
H21LOI OPTOLOGIC OPTICAL INTERRUPTER SWITCH
H21A PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH
H21A1 PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.