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Product Detailed Parameters
- Description：LED BLUE CLR SIDE VIEW SMD R/A
- Series：-
- Mfr：Everlight Electronics Co Ltd
- Package：Tape & Reel (TR)
- Color：Blue
- Configuration：Standard
- Lens Color：Colorless
- Lens Transparency：Clear
- Millicandela Rating：315mcd
- Lens Style：Round with Flat Top
- Lens Size：2.20mm Dia
- Voltage - Forward (Vf) (Typ)：3.35V
- Current - Test：20mA
- Viewing Angle：120°
- Mounting Type：Surface Mount, Right Angle
- Wavelength - Dominant：471nm
- Wavelength - Peak：468nm
- Features：-
- Package / Case：2-SMD, Boomerang
- Supplier Device Package：Side View LED
- Size / Dimension：4.00mm L x 3.55mm W
- Height (Max)：4.00mm
- Grade：-
- Qualification：-
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Overview
The 57-21/B7C-AS1T2M/BF is a side-view surface-mount LED manufactured by Everlight Electronics. It utilizes AlGaInP material to emit red light with a clear lens configuration. The component features a compact SMD package designed for right-angle mounting, suitable for high-density board layouts. Key electrical parameters include a forward voltage range of 1.9V to 2.3V at 20mA and a peak wavelength between 625nm and 635nm. The device supports standard reflow soldering processes and is RoHS compliant.
Feature Summary
- Side-view optical emission profile for direct visibility
- Clear lens design for distinct light transmission
- RoHS compliant lead-free construction
Applications
- Indicator lights in consumer electronics
- Backlighting for switches and symbols
- Status indication in telecommunications equipment
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current datasheet revision to ensure compatibility with required lens color and packaging specifications. Confirm that the component meets the environmental compliance standards mandated for the target assembly process. Cross-reference the part number with official distributor catalogs to validate authenticity and traceability before finalizing procurement orders.
Selection Notes
Select this component when a visible red indicator is required in a space-constrained design. The side-view orientation allows for optimal visibility on densely populated circuit boards where top-down viewing is obstructed. Ensure the application circuit accounts for the specified forward voltage drop to maintain consistent brightness levels across operating temperatures.
Part Context
This model belongs to the 57-21 series of surface-mount LEDs from Everlight Electronics. The series is characterized by its small footprint and reliability for mass production environments. It serves as a standard solution for status indication in various electronic devices requiring compact, efficient, and durable light-emitting components.
Replacement Considerations
Consult the official Everlight cross-reference guide for verified substitute part numbers. Do not assume functional equivalence based solely on package dimensions or nominal wavelength ranges without verifying electrical characteristics and thermal performance.
