MV57621 Equivalent & Substitute Parts

Part Overview

The MV57621 is a red LED indicator in T-1 (3mm) through-hole package manufactured by onsemi. This discrete 2V radial LED is designed for indication applications with a 4mcd brightness rating and 635nm peak wavelength. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Finding compatible alternatives ensures design continuity while maintaining electrical and mechanical compatibility.

Substiute Parts

MV57621

onsemiIn Stock: 1201MV57621 Datasheet

Current PartRFQ

TLHR4200

Vishay Semiconductor Opto DivisionIn Stock: 3966TLHR4200 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The TLHR4200 qualifies as a direct substitute for the MV57621 based on the following critical parameters:

• Color & Wavelength: Both parts are red LEDs with peak wavelength at 635nm, ensuring identical color appearance in indication applications
• Package & Form Factor: Both use T-1 (3mm) through-hole radial packages with compatible physical dimensions (height difference of 0.20mm is within tolerance for standard PCB layouts)
• Electrical Characteristics: Both operate at 2V forward voltage with 10mA test current, allowing direct circuit compatibility without redesign
• Lens Configuration: Both feature clear, round domed-top lenses with comparable viewing angles (45° vs 44°)
• Mounting: Both are through-hole radial mount components suitable for identical PCB footprints

The TLHR4200 offers higher brightness (8mcd vs 4mcd), which is a performance enhancement rather than a compatibility issue for indication applications.

Parameter Comparison

Engineering Selection Recommendations

The TLHR4200 is a qualified substitute for the MV57621 in all indication applications requiring a red T-1 through-hole LED. Selection is based on:

• Product Availability: The MV57621 is obsolete; the TLHR4200 is active and in stock (3921 pcs available)
• Electrical Compatibility: Identical forward voltage and test current ensure direct circuit compatibility without modification
• Mechanical Compatibility: T-1 radial package with comparable dimensions fits existing PCB footprints
• Compliance: The TLHR4200 is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements
• Performance Enhancement: The higher brightness rating (8mcd vs 4mcd) provides improved visibility without circuit changes

No circuit redesign or PCB layout modification is required for this substitution.

Frequently Asked Questions (FAQ)

Q: Can the TLHR4200 replace the MV57621 in existing designs? A: Yes. Both parts share identical electrical characteristics (2V forward voltage, 10mA test current) and T-1 through-hole radial packages. Direct substitution is possible without circuit modification.

Q: What is the difference in brightness between these parts? A: The TLHR4200 provides 8mcd compared to the MV57621's 4mcd. This is a performance improvement suitable for indication applications where higher visibility is beneficial.

Q: Are the physical dimensions compatible? A: Yes. Both use 3mm T-1 packages with maximum heights of 6.30mm (MV57621) and 6.10mm (TLHR4200). The 0.20mm difference is within standard PCB assembly tolerances.

Q: What is the viewing angle difference? A: The MV57621 has a 45° viewing angle while the TLHR4200 has a 44° viewing angle. This negligible difference does not affect practical application performance.

Q: Does the TLHR4200 meet current compliance standards? A: Yes. The TLHR4200 is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: Can I use the TLHR4200 in high-volume production? A: Yes. The TLHR4200 is an active product with 3921 pcs in stock, providing reliable supply for production applications.