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Product Detailed Parameters
- Description：LED YELLOW CLEAR SMD R/A
- Series：-
- Mfr：Everlight Electronics Co Ltd
- Package：Tape & Reel (TR)
- Color：Yellow
- Configuration：Standard
- Lens Color：Colorless
- Lens Transparency：Clear
- Millicandela Rating：158mcd
- Lens Style：Round with Flat Top
- Lens Size：2.20mm Dia
- Voltage - Forward (Vf) (Typ)：2.05V
- Current - Test：20mA
- Viewing Angle：120°
- Mounting Type：Surface Mount, Right Angle
- Wavelength - Dominant：590nm
- Wavelength - Peak：591nm
- 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 57-21/Y2C-AQ2S1B/BF is a single-color yellow LED manufactured by Everlight Electronics. It features a boomerang-shaped 2-SMD package with right-angle termination for board edge mounting. The component emits brilliant yellow light with a peak wavelength of 591 nm and utilizes a water-clear lens. It operates within a temperature range of -40 °C to 85 °C, supports a maximum forward current of 25 mA, and delivers a nominal luminous intensity of 45 mcd.
Feature Summary
- Boomerang surface-mount package design enables right-angle board edge installation
- Water-clear lens housing provides high transmission efficiency
- RoHS compliant lead-free construction ensures environmental safety
Applications
- Board edge indicator lighting
- Electronic equipment status indication
- Control panel signaling
Procurement Notes
Verify the complete ordering code including suffixes against official Everlight documentation to ensure correct package orientation and lens type. Confirm availability through authorized distributors as supply levels may fluctuate. Cross-reference the Mouser part number 638-5721y2caq2s1bbf for accurate sourcing channels.
Selection Notes
Select this component when right-angle mounting geometry is required for space-constrained designs. The 4.00mm height accommodates standard assembly processes. Ensure thermal management aligns with the 85 °C maximum operating limit. Verify compatibility with infrared reflow soldering profiles during manufacturing integration.
Part Context
This device belongs to the Everlight 57-21 series of SMD PLCC LEDs. The series offers reliable illumination in compact form factors suitable for modern electronics. The specific model integrates yellow emission characteristics optimized for visibility in various ambient lighting conditions while maintaining low power consumption standards.
Replacement Considerations
Direct substitutes include other Everlight models from the same 57-21 family with compatible pinout and mechanical dimensions. Verify spectral output and forward voltage requirements before substitution to maintain circuit performance integrity.
