3mm White LEDs
= Standard T1 ThroughHole Light Emitting Diodes for Electronics Projects =
3mm white LEDs are compact, throughhole components that serve as bright indicators and light sources for Arduino, Raspberry Pi, and electronics projects . With a standard round T1 package and 2.54mm pin spacing, they integrate easily into breadboards and PCBs.
High Brightness - Available up to 12,900 mcd for daylight visibility
Low Power Consumption - Operates at only 20mA typical forward current
White LEDs have a forward voltage of 2.7V to 3.6V depending on model .
A currentlimiting resistor (typically 220Ω1kΩ) is required.
Typical forward current is 18mA to 30mA; exceeding this can damage the LED .
= Technical Specifications (Typical Values) =
| Parameter | Value |
|---|
| Package Type | 3mm Round (T-1) |
| Mounting Type | Through Hole |
| Pin Spacing | 2.54mm (0.1 inch) |
| Forward Voltage (Typ.) | 2.7V - 3.6V |
| Forward Current (Max) | 18mA - 30mA |
| Luminous Intensity | 120mcd to 12,900mcd |
| Viewing Angle | 25° to 60° |
Note: Specifications vary by manufacturer - check datasheet for your specific model.
= Key Features =
+High Brightness Options Standard to ultrabright variants for various applications
+Multiple Lens Types Clear (waterclear) or diffused (milky-white) lens options
+Long Lifespan Solidstate reliability with low power consumption
== Applications ==
- Status indicators for electronics and microcontrollers
- Breadboard prototyping and PCB indicators
- Backlighting and small area illumination
- Decorative and accent lighting
Reliable and Widely Used - A standard LED format with consistent performance
Easy Integration - Works with all microcontrollers and development boards
√ Available in various pack sizes (10, 25, 100, 500+)
√ Compatible with standard 3mm LED holders and bezels
√ Low power consumption for battery-powered projects
= Troubleshooting =
LED not lighting:
- Check polarity: anode (long lead) to positive, cathode (short lead) to ground
- Verify current-limiting resistor is installed
- Ensure supply voltage meets forward voltage requirement (2.7V - 3.6V)
Dim brightness:
- Confirm correct resistor value
- Check for loose connections
