{"product_id":"red-led-5mm-diffused-general-purpose-10-pack","title":"Red LED 5mm Diffused — General Purpose, 10-Pack","description":"\u003ch2\u003eRed LED 5mm Diffused — General Purpose, 10-Pack for Arduino, Breadboard \u0026amp; PCB Projects\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003e5mm diffused red LED\u003c\/strong\u003e is the most widely used general-purpose indicator LED in electronics. Whether you’re building your first Arduino project, prototyping a custom PCB, or adding status indicators to a finished product, the 5mm red LED is the universal starting point — instantly recognizable as the stop\/error\/alert indicator color in virtually every electronics application worldwide.\u003c\/p\u003e\u003cp\u003eRed LEDs have the lowest forward voltage of all common LED colors (typically 1.8–2.2V), making them the most efficient and easiest to drive from 3.3V and 5V Arduino circuits. The \u003cstrong\u003ediffused lens\u003c\/strong\u003e scatters light evenly across a wide viewing angle, providing omnidirectional visibility even when the LED is not viewed straight-on. Supplied in a \u003cstrong\u003e10-pack\u003c\/strong\u003e for prototyping and small production runs.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5mm through-hole package\u003c\/strong\u003e — breadboard and PCB compatible; standard LED footprint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiffused lens\u003c\/strong\u003e — wide viewing angle (~120°) for omnidirectional visibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed color\u003c\/strong\u003e — universal stop\/error\/alert\/fault indicator color\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow forward voltage ~1.8–2.2V\u003c\/strong\u003e — most efficient and easiest to drive of all common LED colors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-pack\u003c\/strong\u003e — ideal for prototyping and small production runs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong service life\u003c\/strong\u003e — LED technology; no filament to burn out\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to Use with Arduino\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConnect the \u003cstrong\u003eanode (longer leg)\u003c\/strong\u003e to an Arduino digital output pin through a \u003cstrong\u003e220–330Ω current-limiting resistor\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eConnect the \u003cstrong\u003ecathode (shorter leg)\u003c\/strong\u003e to GND\u003c\/li\u003e\n\u003cli\u003eSet the digital pin HIGH to turn the LED on, LOW to turn it off\u003c\/li\u003e\n\u003cli\u003eFor PWM dimming: use \u003ccode\u003eanalogWrite(pin, value)\u003c\/code\u003e with value 0–255\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eError and alert indicators\u003c\/strong\u003e — red is the universal stop\/error\/fault indicator color\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino beginner projects\u003c\/strong\u003e — the classic first Arduino LED project\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreadboard prototyping\u003c\/strong\u003e — quick indicator for circuit testing and debugging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom PCB status indicators\u003c\/strong\u003e — fault, error, and alert indicators on custom PCBs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobotics and automation\u003c\/strong\u003e — fault and status indicator LEDs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraffic light and signal projects\u003c\/strong\u003e — stop signal in traffic light Arduino projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEducational electronics kits\u003c\/strong\u003e — STEM and electronics learning projects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 5mm (T-1 3\/4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLens:\u003c\/strong\u003e Diffused\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForward Voltage (Vf):\u003c\/strong\u003e ~1.8–2.2V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForward Current (If):\u003c\/strong\u003e 20mA (typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViewing Angle:\u003c\/strong\u003e ~120° (diffused)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e Through-hole, 2-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 10 per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Keszoox\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45672751137003,"sku":"","price":6.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/LED-5mm-Red-10-Pack.jpg?v=1723008026","url":"https:\/\/keszoox.com\/products\/red-led-5mm-diffused-general-purpose-10-pack","provider":"Keszoox","version":"1.0","type":"link"}