91-21SUGC/S400-A4/TR9

LED Indication - Discrete Overview

The 91-21SUGC/S400-A4/TR9 is a single-color surface-mount LED manufactured by Everlight Electronics. It utilizes InGaN technology to emit brilliant green light with a peak wavelength of 525 nm. The component features a water-clear dome lens and operates at a forward current of 20 mA with a forward voltage of 2.2 V. It has a power rating of 60 mW and a viewing angle of 25 degrees. The device is housed in a T-3/4 package, measuring 2.7 mm in height, and is supplied in tape and reel packaging.

LED Indication - Discrete Feature Summary

• Emits brilliant green light using InGaN semiconductor technology
• Features a water-clear dome-shaped lens for optical clarity
• Designed for surface mount (SMD) installation on printed circuit boards

LED Indication - Discrete Applications

• Flat backlighting for LCD displays
• Indicator lights for switches and symbols
• Backlighting in office equipment
• Indicators for battery-driven portable devices

LED Indication - Discrete Procurement Notes

Verify the specific suffix TR9 against the manufacturer's official datasheet to confirm the tape and reel quantity and packaging specifications. Ensure the component meets RoHS compliance requirements for your region. Check for moisture sensitivity levels if storage conditions are critical. Confirm availability status as manufacturing statuses may change. Validate that the electrical parameters match your circuit design before finalizing procurement orders.

LED Indication - Discrete Selection Notes

Select this component when a high-brightness green indicator is required for space-constrained designs. The SMD form factor allows for automated assembly processes. Consider the 25-degree viewing angle for directional lighting needs. The low forward voltage supports efficient power management in battery-operated systems. Ensure the thermal characteristics align with the intended operating environment.

LED Indication - Discrete Part Context

This part belongs to Everlight's line of 5.0mm round type LED lamps adapted for surface mount applications. It shares the physical footprint and optical characteristics of through-hole variants but is optimized for SMT production lines. The series includes various colors, with this specific model dedicated to green emission. It is designed to replace older through-hole components in modern electronics manufacturing.

LED Indication - Discrete Replacement Considerations

The datasheet indicates this part is obsolete. Available substitutes include similar models from the same manufacturer family. Verify pin compatibility and luminous intensity when selecting an alternative. Cross-reference the mechanical dimensions to ensure fit within the existing PCB layout.