C503B-AAS-CY0C0251

Overview

The C503B-AAS-CY0C0251 is a through-hole amber LED from the Cree C503B series, housed in a 5 mm (T-1 3/4) round package with a clear lens. It operates at a typical forward voltage of 2.1 V and a test current of 20 mA. The device emits light at a dominant wavelength of 591 nm with a luminous intensity range of 5860 to 23500 mcd. It features a narrow 15-degree viewing angle and is RoHS compliant.

Feature Summary

• Advanced optical-grade epoxy encapsulation provides superior resistance to high temperatures and moisture for outdoor durability.
• Encapsulation resin includes UV inhibitors to minimize degradation from direct sunlight exposure, ensuring stable light output over the component's life.

Applications

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

Procurement Notes

Verify the specific suffix CY0C0251 against the manufacturer datasheet to confirm exact binning and packaging configuration. Ensure compatibility with standard 5 mm through-hole mounting requirements. Confirm RoHS compliance status for the specific production batch prior to integration into regulated assemblies.

Selection Notes

Select this component when a narrow beam profile is required for long-distance visibility in signaling applications. The 15-degree viewing angle concentrates light output effectively compared to wider-angle alternatives. Verify that the 2.1 V forward voltage aligns with the circuit design constraints for amber LEDs.

Part Context

This part belongs to the C503B family of 5-mm round LEDs manufactured by Cree LED. The series offers various color options including red and amber, with different viewing angles such as 15, 23, and 30 degrees. These components are engineered specifically for high-readability outdoor environments requiring robust environmental protection.

Replacement Considerations

Cross-reference with other C503B-Axx variants if different viewing angles or intensities are needed. Verify mechanical footprint compatibility for 5 mm T-1 3/4 packages. Check electrical parameters against similar amber LEDs from other manufacturers if supply constraints exist.