5mm Yellow LEDs
= Standard T1 3/4 ThroughHole Light Emitting Diodes =
5mm yellow LEDs are bright, through-hole components that provide a reliable visual indicator for a wide range of electronics applications. With a standard round package and 2.54mm terminal pitch, they fit easily into breadboards, making them a popular choice for Arduino, Raspberry Pi, and other DIY projects .
Standard 5mm (T1 3/4) Package Compatible with standard LED holders, breadboards, and 2.54mm pitch PCBs.
Various Brightness Levels Available from standard (220mcd) to ultra-bright (up to 25,000mcd) options .
Typical forward current is 20mA, with a typical forward voltage of 2.0V to 2.1V .
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.
= Typical Technical Specifications =
| Parameter | Value |
|---|
| -- | -- |
| Package Type | 5mm (T-1 3/4) Round |
| Mounting Type | Through Hole |
| Terminal Pitch | 2.54mm (0.1 inch) |
| Dominant Wavelength | 585nm - 594nm |
| Forward Voltage (Typ.) | 1.8V - 2.1V |
| Forward Current (Max) | 20mA - 30mA |
| Viewing Angle | 20° - 60° |
Specifications vary by model. Always check the manufacturer's datasheet for precise values .
= Key Features =
+High Brightness Options - Luminous intensities range from 2mcd standard to super bright 25,000mcd variants .
+Multiple Lens Types Choose from diffused (for wide angle) or water clear (for focused, highintensity light) .
+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 lighting.
- Breadboard prototyping and general DIY projects .
Reliable and Widely Available - A standard component from leading manufacturers like Kingbright .
Easy to Integrate - Works with all common microcontrollers and development boards.
√ Available in various pack sizes (1, 25, 50, 100, 500, 1000+) .
√ 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 (typically 2.0V - 2.1V) .
Dim or uneven brightness:
- Confirm the correct resistor value is being used.
- Check for loose or cold solder joints.
