AA4040SYSK/J3

Overview

The Kingbright AA4040SYSK/J3 is a single-color yellow surface-mount LED designed for indicator applications. It features a PLCC-2 package with dimensions of 4.0 mm in length, 3.6 mm in width, and 4.0 mm in height. The component emits light at a peak wavelength of 590 nm with a water clear lens. Electrical characteristics include a forward voltage of 2 V and a forward current rating of 20 mA. The device offers a viewing angle of 120 degrees and operates within a temperature range of -40 °C to +85 °C.

Feature Summary

• Utilizes a compact PLCC-2 SMD package for efficient PCB space utilization
• Features a water clear dome lens to maximize light transmission
• Provides a wide 120-degree viewing angle for broad visibility
• Constructed with RoHS-compliant materials for environmental safety

Applications

• Panel status indicators
• Power supply visual feedback
• Control board signaling

Procurement Notes

Verify the specific suffix J3 against official Kingbright documentation to confirm exact binning or packaging variations. Ensure compatibility with standard PLCC-2 footprints during schematic capture. Confirm moisture sensitivity level requirements for your assembly process. Cross-reference datasheet electrical limits with your circuit design constraints before finalizing procurement.

Selection Notes

Select this component when a standard yellow indicator is required in a low-profile surface-mount form factor. The 590 nm wavelength provides distinct visibility compared to red alternatives. The 20 mA drive current aligns with common microcontroller GPIO capabilities. Consider the 120-degree viewing angle if line-of-sight obstruction is minimal.

Part Context

This part belongs to the Kingbright AA4040 series, which encompasses various colors and configurations in a standardized 4x4 mm footprint. The series is widely used in consumer electronics and industrial equipment requiring reliable visual signaling. The SYSK designation typically indicates specific optical intensity or color binning within the yellow spectrum.

Replacement Considerations

Direct substitutes include other Kingbright AA4040 variants such as AA4040YS or AA4040SYCKT/J3-AMT, provided the specific luminous intensity and wavelength tolerances match the design requirements. Verify pinout compatibility and thermal characteristics before substitution.