# H21A1 (Component) ## Description Optical Sensor Through-Beam 0.118" (3mm) Phototransistor Slotted, PC Pins #commonpartslibrary #optical #sensor #phototransistor ## Component Details - **Owner:** adrian95 - **Created:** 7/18/2023 - **Last Updated:** 6/21/2024 - **Visibility:** Public - **Datasheet URL:** https://media.digikey.com/pdf/Data%20Sheets/Fairchild%20PDFs/H21A1,2,3.pdf - **Part Type:** Sensor - **Manufacturer Name:** onsemi - **Manufacturer Part Number:** H21A1 - **License:** https://creativecommons.org/licenses/by/4.0/ - **Used in:** 10 projects ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/h21a1/isocom.html?utm_currency=USD&region=nac) | $0.6816 | 0 | | [Digi-Key](https://www.digikey.com/en/products/detail/isocom-components-2004-ltd/H21A1/126287) | N/A | N/A | | [HQonline](https://www.hqonline.com/product-detail/photoelectric-switches-isocom-h21a1-2500319268) | $0.52237 | 0 | | [LCSC](https://www.lcsc.com/product-detail/C90607.html) | $0.943 | 0 | | [Mouser](https://www.mouser.com/en/ProductDetail/onsemi/H21A1?qs=N6oOniiA2U7vryAcAetCPg%3D%3D) | N/A | N/A | | [Verical](https://www.verical.com/pd/isocom-components-photointerrupter-H21A1-2623517?utm_currency=USD) | N/A | N/A | - **Part Type:** Sensors - **Manufacturer:** ON Semiconductor - **MPN:** H21A1 - **Pin Count:** 6 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | A | | | 2 | K | | | 3 | C | | | 4 | E | | | MH1 | MH1 | | | MH2 | MH2 | | --- *Generated from [https://www.flux.ai/adrian95/h21a1~4o](https://www.flux.ai/adrian95/h21a1~4o)*