5mm Blue LEDs
= Standard T1 3/4 ThroughHole Light Emitting Diodes for Electronics Projects =
5mm blue LEDs are bright, through-hole components that provide a distinct visual indicator for a variety of electronics applications. With a standard round package and 2.54mm terminal pitch, they fit easily into breadboards and PCBs, serving as a popular choice for indicator lights, signage, and decorative projects .
Bright and Efficient - High luminous intensity with low power consumption ensures excellent visibility for indicators .
Standard 5mm (T1 3/4) Package Compatible with standard 5mm LED holders, breadboards, and 2.54mm pitch PCBs .
Typical forward current is 20mA 30mA and forward voltage is 3.6V 4.0V, depending on the specific model .
The longer lead is the anode (+) and the shorter lead is the cathode (-).
A current-limiting resistor is required to prevent the LED from being damaged by excessive current.
= Technical Specifications (Typical Values) =
| Parameter | Value |
|---|
| -- | -- |
| Package Type | 5mm (T-1 3/4) Round |
| Mounting Type | Through Hole |
| Terminal Pitch | 2.54mm |
| Forward Voltage | 3.6V - 4.0V |
| Forward Current (Max) | 20mA - 30mA |
| Dominant Wavelength | 460nm - 470nm |
| Viewing Angle | 16° to 130° (varies by model) |
Specifications vary by manufacturer - always check the datasheet for your specific model.
= Key Features =
+High Brightness Options - Luminous intensities range from 1000mcd to 2700mcd or higher, depending on the model .
+WaterClear Lens Type Provides bright, focused light output .
+Long Lifespan Solidstate reliability and rugged design for long-term use .
== Applications ==
- Status indicators for electronics and microcontrollers.
- Signage, illuminated advertising, and decorative lighting .
- Commercial and residential architectural lighting .
- Breadboard prototyping and general DIY projects .
Reliable and Widely Available - A standard LED format from leading manufacturers like Kingbright .
Easy to Integrate - Works with all microcontrollers and development boards.
√ Available in various pack sizes and luminous intensities
√ Compatible with standard 5mm LED holders and bezels
√ IC compatible with low power consumption
= Troubleshooting =
LED not lighting:
- Check polarity: anode (long lead) to positive, cathode (short lead) to ground.
- Verify a current-limiting resistor is installed.
- Ensure the supply voltage meets the forward voltage requirement (3.6V - 4.0V).
Dim or uneven brightness:
- Confirm the correct resistor value is being used.
- Check for loose or cold solder joints.
