{"product_id":"ir-rx-led-black","title":"IR RX LED (BLACK)","description":"\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cstrong\u003ePT-333-3B IR RX LED (BLACK)\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003eUnlike an IR LED that emits light, this photodiode acts like a light-sensitive valve. It is typically used in a Reverse Bias configuration. In total darkness, it blocks electricity (Dark Current); however, when infrared light hits its silicon surface, it generates electron-hole pairs that allow current to flow through the circuit.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eWhy it’s a Robotics \u0026amp; Sensing Essential:\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e• High-Speed Response: Because it lacks the processing delay of a demodulator, it can react to changes in light in nanoseconds. This is critical for high-speed line-following robots or object counters on fast-moving conveyor belts.\u003cbr\u003e• Broad Spectral Sensitivity: Its sensitivity peak is centered around 940nm, making it perfectly matched with most standard IR LEDs used in hobbyist electronics.\u003cbr\u003e• Flame Detection: Since fire naturally emits a massive amount of infrared radiation, the PT-333-3B is frequently used as a flame sensor to detect the \"flicker\" of a fire from a distance.\u003cbr\u003e• Compact 5mm Package: It shares the same form factor as a standard LED, allowing it to be mounted easily on PCBs or inside 3D-printed brackets alongside an IR transmitter.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eTechnical Capabilities:\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e• Spectral Range: 700nm to 1050nm (visible red to near-infrared).\u003cbr\u003e• Light Current (I_L): \u0026gt;= 3mA (The amount of current it allows through when fully illuminated).\u003cbr\u003e• Low Dark Current (I_D): \u0026lt; 0.1muA (Ensures almost zero \"noise\" when no IR light is present).\u003cbr\u003e• Durability: Operates in extreme temperatures ranging from -40°C to +100°C.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003eThe PT-333-3B is the primary choice for custom proximity sensors, optical tachometers (measuring RPM), firefighting robot eyes, and automated hand-sanitizer dispensers.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"TinkEdge","offers":[{"title":"Default Title","offer_id":46404645486791,"sku":"TE-IRSE-089","price":12.84,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6620\/6407\/files\/IRRXLED_BLACK_1.png?v=1776773923","url":"https:\/\/shop.tinkedge.tech\/products\/ir-rx-led-black","provider":"TinkEdge","version":"1.0","type":"link"}