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AA4040YS
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Product Detailed Parameters
- Description：LED YELLOW CLEAR SMD R/A
- Series：-
- Mfr：Kingbright
- Package：Tape & Reel (TR),Cut Tape (CT)
- Color：Yellow
- Configuration：Standard
- Lens Color：Colorless
- Lens Transparency：Clear
- Millicandela Rating：12mcd
- Lens Style：Round with Flat Top
- Lens Size：2.40mm Dia
- Voltage - Forward (Vf) (Typ)：2.1V
- Current - Test：20mA
- Viewing Angle：120°
- Mounting Type：Surface Mount, Right Angle
- Wavelength - Dominant：588nm
- Wavelength - Peak：590nm
- Features：-
- Package / Case：2-SMD, Boomerang
- Supplier Device Package：SMD
- Size / Dimension：4.00mm L x 3.60mm W
- Height (Max)：4.00mm
- Grade：-
- Qualification：-
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Overview
The AA4040YS is a single-color yellow surface-mount LED manufactured by Kingbright. It features a PLCC-2 package with dimensions of 4 mm height, 3.6 mm length, and 4 mm width. The component emits light at a peak wavelength of 588 nm with a water clear dome lens. Electrical characteristics include a forward current of 20 mA, a forward voltage of 2.1 V, and a power rating of 75 mW. Optical performance specifies an intensity of 15 mcd and a viewing angle of 120 degrees. It operates within a temperature range of -40°C to +85°C.
Feature Summary
- Yellow emission with water clear dome lens for high visibility
- Standard PLCC-2 SMD package for automated assembly
- Wide viewing angle for broad indicator applications
Applications
- Panel status indicators
- Equipment power indicators
- Control board signaling
Procurement Notes
Verify the specific datasheet version for the AA4040YS to confirm RoHS compliance details and moisture sensitivity level prior to ordering. Ensure that the supplier documentation matches the manufacturer's official specifications for electrical parameters and physical dimensions. Cross-reference the Mouser number 604-AA4040YS or Kingbright part number KA-4040YS if applicable to confirm exact component identity.
Selection Notes
Select this component when a standard yellow indication is required in a compact PLCC-2 footprint. Consider the 15 mcd intensity suitable for general panel visibility rather than high-brightness requirements. Verify compatibility with the target circuit's forward voltage of 2.1 V at 20 mA. Ensure the operating environment stays within the specified -40°C to +85°C range.
Part Context
This component belongs to the Kingbright AA4040 series of single-color LEDs. The series utilizes a standard PLCC-2 form factor widely adopted in surface mount technology. Other variants in this family offer different colors such as red, green, and orange, sharing similar mechanical dimensions but varying in optical output and electrical characteristics.
Replacement Considerations
The part number alias KA-4040YS represents the same component. When sourcing substitutes, verify that the replacement maintains the PLCC-2 package, 588 nm wavelength, and compatible forward voltage to ensure direct fitment without circuit modification.
