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  1. www.digikey.com › en › productsH21B2 onsemi | Sensors, Transducers | DigiKey

    H21B2 – Optical Sensor Through-Beam 0.118" (3mm) Photodarlington Slotted, PC Pins from onsemi. Pricing and Availability on millions of electronic components from Digi-Key Electronics.

  2. www.mouser.in › ProductDetail › onsemi-FairchildH21B2 onsemi / Fairchild | Mouser India

    H21B2 onsemi / Fairchild Optical Switches, Transmissive, Phototransistor Output INTERUP MOD DARL datasheet, inventory & pricing.

  3. media.digikey.com › pdf › Data SheetsH21B1/2/3 Photodarlington Optical Interrupter Switch - Digi-Key

    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.

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  4. www.alldatasheet.com › 52736 › FAIRCHILDH21B2 Datasheet(PDF) - Fairchild Semiconductor

    Description: PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH. Manufacturer: Fairchild Semiconductor.

  5. www.digchip.com › parts › datasheetH21B2 datasheet - Slotted Optical 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.