5mm Diffused DIP LED Red-Red (Pack of 5)

Technical Details

• Anode (+): Longer Lead

• Cathode (-): Shorter Lead (Indicated by a flat edge on the LED base)

• Wavelength: 620nm – 630nm

• Operating Temperature: -25°C to +85°C

• Soldering Temp: 260°C for less than 5 seconds

Prototyping and Engineering Tips from Robogears

• Indicator Logic: Red LEDs have the lowest forward voltage requirements (1.8V – 2.0V). When powering from an Arduino (5V), we recommend a 220Ω to 330Ω resistor for a standard indicator brightness.

• 3.7V Battery Power: To run these from a Li-ion or Li-Po battery, use a 100Ω to 120Ω resistor. This safely manages the voltage gap as the battery moves from 3.7V to 4.2V, ensuring the red color remains consistent.

• The "Power" Light: This is the best LED for a "Main Power" indicator. Connect it directly after your power switch (with a resistor) to give immediate visual feedback that your robot is live.

• Panel Mounting: If you are building a custom chassis, use a 5mm plastic LED holder to secure these into your panel. The diffused lens is superior for panels because it remains visible even when viewed from the side as the robot turns.

Package Includes

• 5 x 5mm Red Diffused DIP LEDs

Disclaimer Images are for reference; actual red saturation may vary slightly by production batch. DO NOT connect directly to a power source without a current-limiting resistor, as this will lead to immediate failure of the LED.