{"product_id":"ah3503-linear-hall-effect-sensor","title":"AH3503 Linear Hall Effect Sensor","description":"\u003cstyle\u003e\n  .nzn-desc {\n    width: 100%;\n    max-width: 1400px;\n    margin: 0 auto;\n    font-family: inherit;\n    color: #101114;\n  }\n\n  .nzn-desc,\n  .nzn-desc * {\n    box-sizing: border-box;\n  }\n\n  .nzn-desc .nzn-tabs {\n    width: 100%;\n    display: flex;\n    gap: 30px;\n    border-bottom: 1px solid #e7e7e7;\n    overflow-x: auto;\n    scrollbar-width: none;\n    min-height: 55px;\n    align-items: flex-end;\n  }\n\n  .nzn-desc .nzn-tabs::-webkit-scrollbar {\n    display: none;\n  }\n\n  .nzn-desc .nzn-tab {\n    flex: 0 0 auto;\n    background: none;\n    border: 0;\n    padding: 16px 0;\n    font: inherit;\n    font-size: 14px;\n    font-weight: 800;\n    white-space: nowrap;\n    border-bottom: 3px solid transparent;\n    color: #101114;\n    cursor: pointer;\n    transition: color .18s ease, border-color .18s ease;\n  }\n\n  .nzn-desc .nzn-tab:hover {\n    color: #ff7a2f;\n  }\n\n  .nzn-desc .nzn-tab.is-active {\n    border-bottom-color: #ff7a2f;\n  }\n\n  .nzn-desc .nzn-card {\n    border: 1px solid #e7e7e7;\n    border-top: 0;\n    border-radius: 0 0 18px 18px;\n    padding: 38px 34px;\n    box-shadow: 0 10px 24px rgba(0,0,0,.035);\n    background: #fff;\n  }\n\n  .nzn-desc .nzn-panel {\n    display: none;\n  }\n\n  .nzn-desc .nzn-panel.is-active {\n    display: block;\n  }\n\n  .nzn-desc .nzn-overview {\n    display: grid;\n    grid-template-columns: 1fr 1fr;\n    gap: 46px;\n    align-items: start;\n  }\n\n  .nzn-desc .nzn-overview-copy {\n    padding-top: 6px;\n  }\n\n  .nzn-desc p {\n    font-size: 15px;\n    line-height: 1.65;\n    color: #60646c;\n    margin: 0;\n  }\n\n  .nzn-desc .nzn-checks {\n    list-style: none;\n    padding: 0;\n    margin: 34px 0 0;\n    display: grid;\n    gap: 18px;\n  }\n\n  .nzn-desc .nzn-checks li {\n    display: flex;\n    align-items: center;\n    gap: 12px;\n    font-size: 14.5px;\n    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16px;\n    font-size: 14px;\n    line-height: 1.45;\n    border-radius: 0 8px 8px 0;\n  }\n\n  .nzn-desc .nzn-faq {\n    display: grid;\n    gap: 12px;\n  }\n\n  .nzn-desc .nzn-faq-item {\n    border: 1px solid #e7e7e7;\n    border-radius: 12px;\n    padding: 16px 18px;\n    background: #fff;\n  }\n\n  .nzn-desc .nzn-faq-item strong {\n    display: block;\n    margin-bottom: 7px;\n    color: #101114;\n  }\n\n  .nzn-desc .nzn-note {\n    margin-top: 30px;\n    background: #fafafa;\n    border: 1px solid #e7e7e7;\n    border-radius: 12px;\n    padding: 16px 18px;\n    text-align: center;\n    color: #60646c;\n    font-size: 13px;\n    line-height: 1.55;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"nzn-desc\"\u003e\n\n\u003cdiv class=\"nzn-tabs\"\u003e\n\u003cbutton class=\"nzn-tab is-active\" type=\"button\" data-tab=\"overview\"\u003eOverview\u003c\/button\u003e\n\u003cbutton class=\"nzn-tab\" type=\"button\" data-tab=\"specifications\"\u003eSpecifications\u003c\/button\u003e\n\u003cbutton class=\"nzn-tab\" type=\"button\" data-tab=\"getting-started\"\u003eWiring\u003c\/button\u003e\n\u003cbutton class=\"nzn-tab\" type=\"button\" data-tab=\"uses\"\u003eCommon Uses\u003c\/button\u003e\n\u003cbutton class=\"nzn-tab\" type=\"button\" data-tab=\"faqs\"\u003eFAQs\u003c\/button\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-card\"\u003e\n\n\u003cdiv class=\"nzn-panel is-active\" data-panel=\"overview\"\u003e\n\n\u003cdiv class=\"nzn-overview\"\u003e\n\n\u003cdiv class=\"nzn-overview-copy\"\u003e\n\n\u003cp\u003e\nThe AH3503 is a linear analog Hall Effect sensor designed for accurate magnetic field measurement in a compact TO-92 package. It outputs a ratiometric analog voltage proportional to magnetic field strength, making it ideal for RPM sensing, motor control, position sensing, robotics, and Arduino projects.\n\u003c\/p\u003e\n\n\u003cul class=\"nzn-checks\"\u003e\n\u003cli\u003eLinear analog Hall Effect output\u003c\/li\u003e\n\u003cli\u003eCompact TO-92 package\u003c\/li\u003e\n\u003cli\u003eWide 3.5V – 6.6V operating range\u003c\/li\u003e\n\u003cli\u003eFast response with low noise output\u003c\/li\u003e\n\u003cli\u003eCompatible with Arduino, ESP32 \u0026amp; Raspberry Pi ADCs\u003c\/li\u003e\n\u003cli\u003eIdeal for RPM, throttle \u0026amp; position sensing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-started\"\u003e\n\n\u003ch3\u003eQuick Wiring\u003c\/h3\u003e\n\n\u003cdiv class=\"nzn-step\"\u003e\n\u003cspan\u003e1\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFace the flat side toward you\u003c\/strong\u003e\n\u003cp\u003eThe marked \"503 118\" side should face toward you when identifying pins.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-step\"\u003e\n\u003cspan\u003e2\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eConnect VCC\u003c\/strong\u003e\n\u003cp\u003ePin 1 → 3.5V–6.6V supply voltage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-step\"\u003e\n\u003cspan\u003e3\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eConnect GND\u003c\/strong\u003e\n\u003cp\u003ePin 2 → Ground.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-step\"\u003e\n\u003cspan\u003e4\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRead analog output\u003c\/strong\u003e\n\u003cp\u003ePin 3 → Analog input (A0 on Arduino).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-note\"\u003e\n\u003cstrong\u003ePlease note:\u003c\/strong\u003e This is a linear analog Hall sensor — not a digital on\/off Hall switch.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-panel\" data-panel=\"specifications\"\u003e\n\n\u003ch3 class=\"nzn-section-title\"\u003eSpecifications\u003c\/h3\u003e\n\n\u003cdiv class=\"nzn-specs\"\u003e\n\n\u003cdiv\u003e\n\u003cspan\u003eModel\u003c\/span\u003e\u003cstrong\u003eAH3503\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eOutput Type\u003c\/span\u003e\u003cstrong\u003eLinear Analog (Ratiometric)\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eOperating Voltage\u003c\/span\u003e\u003cstrong\u003e3.5V – 6.6V\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eOutput Voltage\u003c\/span\u003e\u003cstrong\u003e0.1V – 4.9V\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eZero Field Output\u003c\/span\u003e\u003cstrong\u003e~2.5V @ 5V supply\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eSensitivity\u003c\/span\u003e\u003cstrong\u003e15.25mV\/mT typical\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eLinear Range\u003c\/span\u003e\u003cstrong\u003e±80mT\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003ePackage\u003c\/span\u003e\u003cstrong\u003eTO-92A\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eLead Pitch\u003c\/span\u003e\u003cstrong\u003e1.27mm\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eOperating Temperature\u003c\/span\u003e\u003cstrong\u003e-40°C to +85°C\u003c\/strong\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-note\"\u003e\n\u003cstrong\u003ePlease note:\u003c\/strong\u003e Output voltage changes proportionally with magnetic field strength and supply voltage.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-panel\" data-panel=\"getting-started\"\u003e\n\n\u003cdiv class=\"nzn-started\"\u003e\n\n\u003ch3\u003ePinout\u003c\/h3\u003e\n\n\u003cdiv class=\"nzn-step\"\u003e\n\u003cspan\u003e1\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePin 1 → VCC\u003c\/strong\u003e\n\u003cp\u003eConnect to 3.5V – 6.6V supply.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-step\"\u003e\n\u003cspan\u003e2\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePin 2 → GND\u003c\/strong\u003e\n\u003cp\u003eConnect to common ground.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-step\"\u003e\n\u003cspan\u003e3\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePin 3 → OUT\u003c\/strong\u003e\n\u003cp\u003eConnect to analog input pin.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-step\"\u003e\n\u003cspan\u003e4\u003c\/span\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCalibrate at your supply voltage\u003c\/strong\u003e\n\u003cp\u003eMidpoint output changes depending on VCC.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-panel\" data-panel=\"uses\"\u003e\n\n\u003ch3 class=\"nzn-section-title\"\u003eCommon Uses\u003c\/h3\u003e\n\n\u003cdiv class=\"nzn-uses\"\u003e\n\n\u003cdiv class=\"nzn-use\"\u003eRPM sensing for motors \u0026amp; fans\u003c\/div\u003e\n\u003cdiv class=\"nzn-use\"\u003eE-bike \u0026amp; e-scooter throttle systems\u003c\/div\u003e\n\u003cdiv class=\"nzn-use\"\u003eMagnetic position sensing\u003c\/div\u003e\n\u003cdiv class=\"nzn-use\"\u003eBLDC motor commutation\u003c\/div\u003e\n\u003cdiv class=\"nzn-use\"\u003eArduino analog magnetic field projects\u003c\/div\u003e\n\u003cdiv class=\"nzn-use\"\u003eRobotics \u0026amp; automation feedback systems\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-note\"\u003e\n\u003cstrong\u003ePlease note:\u003c\/strong\u003e The flat face of the package is the active sensing side.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-panel\" data-panel=\"faqs\"\u003e\n\n\u003ch3 class=\"nzn-section-title\"\u003eCommon Questions\u003c\/h3\u003e\n\n\u003cdiv class=\"nzn-faq\"\u003e\n\n\u003cdiv class=\"nzn-faq-item\"\u003e\n\u003cstrong\u003eIs this a digital Hall sensor?\u003c\/strong\u003e\n\u003cp\u003eNo — the AH3503 outputs a continuous analog voltage proportional to magnetic field strength.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-faq-item\"\u003e\n\u003cstrong\u003eWill this work with Arduino?\u003c\/strong\u003e\n\u003cp\u003eYes. Connect the output pin to an analog input such as A0 and read using analogRead().\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-faq-item\"\u003e\n\u003cstrong\u003eWhat happens with no magnetic field?\u003c\/strong\u003e\n\u003cp\u003eThe output sits near half the supply voltage (around 2.5V at 5V supply).\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"nzn-note\"\u003e\n\u003cstrong\u003ePlease note:\u003c\/strong\u003e Magnets with stronger magnetic fields produce larger output voltage changes.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cscript\u003e\ndocument.addEventListener('click', function(event) {\n  const tab = event.target.closest('.nzn-desc .nzn-tab');\n  if (!tab) return;\n\n  const wrapper = tab.closest('.nzn-desc');\n  const target = tab.getAttribute('data-tab');\n\n  wrapper.querySelectorAll('.nzn-tab').forEach(function(item) {\n    item.classList.remove('is-active');\n  });\n\n  wrapper.querySelectorAll('.nzn-panel').forEach(function(panel) {\n    panel.classList.remove('is-active');\n  });\n\n  tab.classList.add('is-active');\n\n  const panel = wrapper.querySelector('[data-panel=\"' + target + '\"]');\n  if (panel) panel.classList.add('is-active');\n});\n\u003c\/script\u003e","brand":"NZN Electronics","offers":[{"title":"10 Pack - ($0.49 ea)","offer_id":42757445746784,"sku":"AH3503-HALL-10PK","price":4.99,"currency_code":"NZD","in_stock":true},{"title":"25 Pack - ($0.43 ea)","offer_id":42757445779552,"sku":"AH3503-HALL-25PK","price":10.99,"currency_code":"NZD","in_stock":true},{"title":"50 Pack - ($0.33 ea)","offer_id":42757445812320,"sku":"AH3503-HALL-50PK","price":16.99,"currency_code":"NZD","in_stock":true},{"title":"100 Pack - ($0.30 ea)","offer_id":42757445845088,"sku":"AH3503-HALL-100PK","price":29.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/6127\/0112\/files\/AH3503-Extreme-Closeup.png?v=1778846733","url":"https:\/\/www.nznelectronics.co.nz\/products\/ah3503-linear-hall-effect-sensor","provider":"NZN Electronics","version":"1.0","type":"link"}