LTL-3221A

LED Indication - Discrete Overview

The LTL-3221A is a single-color light-emitting diode manufactured by Lite-On Inc. It utilizes a T-1 (3mm) radial package configuration with a diffused lens design. The component emits red visible light and is rated for a maximum forward current of 30 mA. Electrical characteristics include a typical forward voltage of 2.1 V at the rated current. The device supports a reverse voltage of 5 V and operates within a temperature range of -40 °C to +85 °C. It complies with RoHS standards and features a standard two-terminal axial lead arrangement suitable for through-hole mounting.

LED Indication - Discrete Feature Summary

• Diffused lens construction provides wide viewing angles for general indication purposes
• Standard T-1 3mm radial package facilitates easy integration into printed circuit boards
• High luminous intensity output optimized for visual status signaling applications

LED Indication - Discrete Applications

• Power supply unit status indicators
• Control panel signal lamps
• Electronic equipment front panels

LED Indication - Discrete Procurement Notes

Verify datasheet revisions to ensure compatibility with specific thermal requirements. Confirm that the ordering suffix matches the desired lens type and color wavelength specifications. Cross-reference pin dimensions against existing PCB footprints to guarantee mechanical fit during assembly processes.

LED Indication - Discrete Selection Notes

Evaluate thermal management strategies given the component's operating temperature limits. Consider the required viewing angle when selecting between diffused or clear lens variants within the same series. Ensure the driving circuit can handle the specified forward current without exceeding absolute maximum ratings.

LED Indication - Discrete Part Context

This component belongs to the LTL-3xxx series of T-1 LEDs produced by Lite-On. The series offers various color options including red, green, yellow, and amber. These devices are designed for general-purpose indicator applications requiring reliable performance in consumer electronics and industrial control systems.

LED Indication - Discrete Replacement Considerations

Compatible substitutes include the LTL-3221B and LTL-3221C from Lite-On, which share identical package dimensions and electrical characteristics. Other manufacturers offering equivalent T-1 red diffused LEDs may serve as alternatives if pinout compatibility is verified.