C503B-AAS-CA0B0342

Overview

The C503B-AAS-CA0B0342 is a 5-mm amber round LED from the Cree C503B family, designed for high-readability outdoor applications. It features a 15-degree viewing angle and utilizes advanced optical-grade epoxy with UV inhibitors for stability under direct sunlight. The component operates at a forward current of 20 mA with a typical forward voltage of 2.1 V. It delivers a luminous intensity range of 5860 to 23500 mcd at a dominant wavelength of 591 nm. The device is RoHS-compliant and lead-free.

Feature Summary

• Advanced optical-grade epoxy encapsulation provides superior resistance to high temperatures and moisture.
• Encapsulation resin contains UV inhibitors to minimize degradation from long-term direct sunlight exposure.
• Ensures stable light output over the operational life of the LED in harsh outdoor environments.

Applications

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

Procurement Notes

Verify the specific suffix CA0B0342 against official Cree documentation to confirm binning and packaging details. Ensure compatibility with existing through-hole mounting processes. Confirm availability status as distribution channels may list obsolete or end-of-life variants differently than manufacturer records.

Selection Notes

Select this component when a narrow 15-degree beam angle is required for focused visibility in outdoor signage. The amber color and high-intensity output are suitable for critical signal applications. Verify that the 5-mm form factor fits the mechanical constraints of the target enclosure.

Part Context

This part belongs to the C503B series of 5-mm round LEDs manufactured by Cree LED. The series includes red and amber variants with varying viewing angles (15, 23, and 30 degrees). These LEDs are engineered specifically for outdoor readability and durability, distinguishing them from general-purpose indicator LEDs.

Replacement Considerations

Direct substitutes within the same family include C503B-RAS for red light with identical angular characteristics. Other compatible options include C503B-AAN or C503B-ABS depending on the required viewing angle and intensity bin. Cross-reference datasheets for pinout and thermal specifications before substitution.