The Blue LED is a set of standard through-hole blue light-emitting diodes designed for bright, low-power visual signaling and circuit state indication. Featuring a classic 5mm epoxy lens diameter with a clear/diffused blue output (~460nm–470nm), these LEDs provide vibrant illumination and crisp visibility for custom instrument panels, prototyping, and robotics.
These 2-pin radial leaded LEDs operate with a typical forward voltage of 2.8V to 3.4V DC and a nominal forward current of 15mA to 20mA (always use a current-limiting resistor for safe operation). Their longer positive anode lead and shorter negative cathode lead allow for quick and foolproof polarity identification.
They are fully compatible with 3.3V and 5V microcontrollers including Arduino, ESP32, Raspberry Pi, PIC, AVR, breadboards, stripboards, and custom printed circuit boards (PCBs).
| Type | Through-Hole (DIP) Light Emitting Diode (LED) |
|---|---|
| Lens Diameter | 5mm Standard |
| Lens Color / Finish | Blue Diffused / Tinted |
| Emission Color | Blue (~465nm wavelength) |
| Package Quantity | Pack of 5 Pieces |
| Terminal Type | 2-Pin Radial Lead (Longer lead = Anode (+), Shorter lead = Cathode (-)) |
Is it compatible with Arduino and ESP32?
Yes. It works with Arduino, ESP32, Raspberry Pi projects.
Can I buy the Blue LED in Kanpur?
Yes – buy online with delivery across India, or pick it up from the iTechBuilders store, Damodar Nagar, Kanpur.
