AA4040QBS/G

Overview

The Kingbright AA4040QBS/G is a single-color surface-mount LED from the KA-4040 series, emitting blue light with a peak wavelength of 465 nm. It features a water-clear dome lens and operates at a forward voltage of 3.3 V with a maximum forward current of 20 mA. The device provides an optical intensity ranging from 300 to 350 mcd and offers a viewing angle of 120 degrees. Designed for reliability in dense circuitry, it supports a power rating of 120 mW and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Emits blue light with a 465 nm peak wavelength
• Features a water-clear dome lens for wide visibility
• Supports high-density surface mount assembly

Applications

• Indicator lights for electronic devices
• Backlighting for control panels
• Status indication in consumer electronics

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number AA4040QBS/G with official Kingbright documentation. Ensure that the received units match the specified PLCC-2 package dimensions and electrical characteristics. Confirm RoHS compliance status through provided certificates or datasheets prior to integration into production lines.

Selection Notes

Select this component when a compact blue indicator is required for space-constrained designs. The 4040 form factor allows for efficient board layout compared to larger packages. Consider the 120-degree viewing angle for applications requiring broad visibility. Verify thermal management requirements against the 120 mW power dissipation limit during continuous operation.

Part Context

This LED belongs to the Kingbright KA-4040 series, which represents a generation of surface-mount LEDs designed for improved material durability and electrical reliability. The series utilizes a PLCC-2 package structure, facilitating automated pick-and-place manufacturing processes while maintaining consistent optical performance across various environmental conditions.

Replacement Considerations

The part number KA-4040QBS-G serves as an alias for this specific component. When sourcing substitutes, ensure compatibility with the PLCC-2 footprint and verify that alternative blue LEDs meet the 465 nm wavelength and 3.3 V forward voltage specifications.