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 [citation:9][citation:12].
| Parameter | Value |
|---|---|
| :- | :- |
| Package Type | 5mm (T-1 3/4) Round [citation:2][citation:3] |
| Mounting Type | Through Hole [citation:3][citation:5] |
| Terminal Pitch | 2.54mm (0.1 inch) |
| Dominant Wavelength | 585nm - 594nm [citation:1][citation:2] |
| Forward Voltage (Typ.) | 1.8V - 2.1V [citation:1][citation:5][citation:12] |
| Forward Current (Max) | 20mA - 30mA [citation:1][citation:2][citation:4] |
| Viewing Angle | 20° - 60° [citation:1][citation:4][citation:6] |
Specifications vary by model. Always check the manufacturer's datasheet for precise values [citation:2].
+High Brightness Options - Luminous intensities range from 2mcd standard to super bright 25,000mcd variants [citation:2][citation:8][citation:11].
+Multiple Lens Types Choose from diffused (for wide angle) or water clear (for focused, highintensity light) [citation:1][citation:9][citation:10].
+Long Lifespan Solidstate reliability and rugged design for long-term use [citation:1][citation:8].
√ Available in various pack sizes (1, 25, 50, 100, 500, 1000+) [citation:3][citation:6][citation:9].
√ Compatible with standard 5mm LED holders and bezels.
√ IC compatible with low power consumption [citation:11].
LED not lighting:
Dim or uneven brightness: