C503B-AAS-CA0C0341

Overview

The C503B-AAS-CA0C0341 is a single-color amber LED from the Cree C503B family, housed in a 5 mm (T-1 3/4) round package with a domed top lens. It features a clear, colorless lens and operates via through-hole mounting. The component exhibits a typical dominant wavelength of 591 nm and delivers a luminous intensity range of 5860 to 23500 mcd. Electrical characteristics include a maximum forward current of 20 mA and a power dissipation rating of 130 mW. The device is RoHS compliant and lead-free.

Feature Summary

• Constructed with advanced optical-grade epoxy encapsulation resin containing UV inhibitors for superior high-temperature and high-moisture resistance.
• Designed to minimize degradation effects from long-term direct sunlight exposure, ensuring stable light output over the operational life.
• Provides superior light output optimized for excellent readability in demanding outdoor environments.

Applications

• Electronic Signs & Signals (ESS)
• Motorway Signs
• Variable-Message Sign (VMS)
• Advertising Signs
• Petrol Signs

Procurement Notes

Verify component status carefully as this specific part number may be subject to discontinuation or end-of-life restrictions. Confirm availability through authorized distributors, as stock levels fluctuate. Ensure that any substitute components maintain identical electrical parameters and mechanical dimensions to guarantee compatibility with existing PCB layouts and optical requirements without redesign.

Selection Notes

Select this component when high-brightness amber illumination is required for outdoor signage applications. The 5 mm round form factor suits standard through-hole mounting processes. Consider the wide luminous intensity range for varying visibility needs. Verify that the 20 mA forward current limit aligns with the driving circuit design to prevent thermal overstress and ensure long-term reliability under continuous operation conditions.

Part Context

This component belongs to the Cree C503B series of 5-mm Red and Amber Round LEDs. The series includes variants with different viewing angles (15, 23, and 30 degrees) and intensity bins. The 'AAS' designation typically indicates a specific intensity bin within the amber category, while the suffix denotes packaging and lot-specific identifiers. This family is engineered for robust performance in harsh environmental conditions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires matching the 5 mm T-1 3/4 package, 591 nm wavelength, and 20 mA current rating. Verify mechanical footprint and spectral consistency before implementation.