{"product_id":"u18-hall-effect-sensor","title":"U18 Hall Effect Sensor — Unipolar Magnetic Sensor","description":"\u003ch2\u003eU18 Hall Effect Sensor — Unipolar Magnetic Sensor\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eU18\u003c\/strong\u003e is a compact unipolar Hall Effect sensor designed for reliable magnetic field detection in embedded systems and industrial applications. It activates when a South magnetic pole is brought close and releases when the field is removed, making it ideal for non-contact switching, speed measurement, and position sensing with Arduino and other microcontrollers.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage (Vcc)\u003c\/td\u003e\n\u003ctd\u003e3.5V – 20V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eDigital Open-Collector (Active Low)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperate Point (BOP)\u003c\/td\u003e\n\u003ctd\u003e~80 Gauss (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelease Point (BRP)\u003c\/td\u003e\n\u003ctd\u003e~35 Gauss (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current (Sink)\u003c\/td\u003e\n\u003ctd\u003e20 mA max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSIP-3 (3-pin inline)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensing Type\u003c\/td\u003e\n\u003ctd\u003eUnipolar (South pole only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003ePinout\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePin\u003c\/th\u003e\n\u003cth\u003eName\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eVCC\u003c\/td\u003e\n\u003ctd\u003eSupply Voltage (3.5V – 20V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003eGround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eOUT\u003c\/td\u003e\n\u003ctd\u003eDigital Output (Active Low, Open-Collector)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUnipolar operation — responds to South magnetic pole only\u003c\/li\u003e\n\u003cli\u003eWide supply voltage: 3.5V to 20V — compatible with 3.3V and 5V systems\u003c\/li\u003e\n\u003cli\u003eOpen-collector output — requires 10kΩ pull-up resistor\u003c\/li\u003e\n\u003cli\u003eCompact SIP-3 package for easy PCB and breadboard integration\u003c\/li\u003e\n\u003cli\u003eCompatible with Arduino, ESP32, STM32, PIC, Raspberry Pi\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNon-contact speed and RPM measurement\u003c\/li\u003e\n\u003cli\u003ePosition and proximity detection\u003c\/li\u003e\n\u003cli\u003eBrushless DC motor commutation\u003c\/li\u003e\n\u003cli\u003eDoor\/lid open-close sensing\u003c\/li\u003e\n\u003cli\u003eIndustrial automation switching\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShop Related Sensors at Embeded Studio\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/a3144-hall-effect-sensor\"\u003eA3144 Hall Effect Sensor\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/ss41f-hall-effect-sensor\"\u003eSS41F Hall Effect Sensor\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/a44e-ah44e-hall-effect-sensor\"\u003eA44E Omnipolar Hall Effect Sensor\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":54360055316790,"sku":null,"price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0989\/4182\/9430\/files\/d143ef460f631d2d3f3b2be082dd5306.webp?v=1785659265","url":"https:\/\/enclothin.com\/products\/u18-hall-effect-sensor","provider":"enclothin","version":"1.0","type":"link"}