MV57124A Equivalent & Substitute Parts

Part Overview

The MV57124A is a red LED indicator manufactured by onsemi, designed for through-hole mounting applications requiring discrete red light indication. This component features a diffused rectangular lens with a 5.71mm x 3.17mm form factor and operates at 2V forward voltage with a 20mA test current. The product is currently obsolete, making identification of compatible substitute components essential for ongoing design support and production continuity.

Substiute Parts

MV57124A

onsemiIn Stock: 838MV57124A Datasheet

Current PartRFQ

WP1043ID

KingbrightIn Stock: 1778WP1043ID Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The WP1043ID from Kingbright qualifies as a substitute for the MV57124A based on the following critical parameters:

• Color: Both components are red LEDs
• Lens Transparency: Both feature diffused optics
• Lens Style: Both use rectangle with flat top configuration
• Mounting Type: Both are through-hole mounted
• Voltage Rating: Both operate at 2V forward voltage
• Viewing Angle: Both provide 100° viewing angle
• Wavelength Range: Peak wavelengths are within the red spectrum (635nm vs 625nm)
• Regulatory Compliance: Both are REACH Unaffected and classified as EAR99

The WP1043ID maintains functional and mechanical compatibility with the MV57124A, allowing direct substitution in applications where the original component is no longer available.

Parameter Comparison

Engineering Selection Recommendations

The WP1043ID is an active product from Kingbright with current manufacturing support and inventory availability, making it suitable for replacing the obsolete MV57124A. Both components meet identical regulatory requirements (REACH Unaffected, EAR99 classification) and share the same forward voltage and viewing angle specifications.

The WP1043ID exhibits slightly higher performance characteristics: 7.5mcd versus 6mcd brightness and 30mA rated current versus 20mA test current. The lens dimensions are marginally larger (6.15mm x 3.65mm versus 5.71mm x 3.17mm), and the package configuration differs from radial to bar-single SIP. These differences remain within acceptable tolerance for indicator LED applications where the original component is no longer procurable.

Frequently Asked Questions (FAQ)

Q: Can the WP1043ID directly replace the MV57124A in existing PCB designs?

A: The WP1043ID maintains electrical compatibility (2V forward voltage, 100° viewing angle, red diffused optics) and through-hole mounting. However, the lens dimensions are slightly larger and the package configuration differs (bar-single SIP versus radial). PCB layout verification is necessary to confirm mechanical fit within the existing footprint.

Q: What are the key differences between these two components?

A: The primary differences are product status (obsolete versus active), lens dimensions (5.71mm x 3.17mm versus 6.15mm x 3.65mm), brightness rating (6mcd versus 7.5mcd), rated current (20mA versus 30mA), and package style (radial versus bar-single SIP). Electrical operation and optical characteristics remain compatible.

Q: Are there compliance or regulatory concerns with substitution?

A: Both components share identical regulatory classifications: REACH Unaffected and EAR99. No compliance barriers exist for substitution from a regulatory standpoint.

Q: How do the brightness and current ratings affect substitution?

A: The WP1043ID has higher brightness (7.5mcd) and higher rated current (30mA) than the MV57124A (6mcd, 20mA). In applications where the original 20mA test current was used, the substitute will produce brighter indication. Circuit current-limiting resistor values may require adjustment to maintain equivalent brightness levels if desired.

Q: What should be verified before implementing the WP1043ID as a substitute?

A: Verify mechanical fit within the PCB footprint given the slightly larger lens dimensions. Confirm that the bar-single SIP package configuration accommodates the existing through-hole mounting pattern. Evaluate whether the increased brightness is acceptable for the application or if current-limiting adjustments are needed.