M52-5002145 Equivalent & Substitute Parts

Part Overview

The M52-5002145 is a 21-position receptacle connector from Harwin Inc.'s Archer M52 series, designed for board-to-board applications with 0.050" (1.27mm) pitch spacing. This connector features gold-plated forked contacts, through-hole solder termination, and push-pull fastening. The part is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

M52-5002145

Harwin Inc.In Stock: 893M52-5002145 Datasheet

Current PartRFQ

M52-5002045

Harwin Inc.In Stock: 1044M52-5002045 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M52-5002145 is determined by strict alignment with the following critical parameters:

• Connector Type & Style: Must be receptacle, board-to-board configuration
• Contact Type & Finish: Forked contacts with gold plating on both mating and post surfaces
• Pitch Specification: 0.050" (1.27mm) mating pitch
• Mounting & Termination: Through-hole solder termination with push-pull fastening
• Electrical Performance: 1A current rating minimum
• Environmental Compliance: UL94 V-0 flammability rating, operating range -40°C to 105°C
• Material Composition: Phosphor bronze contacts, polyamide (PA6T/Nylon 6T) insulation
• Regulatory Status: ROHS3 compliant, REACH unaffected

The M52-5002045 qualifies as a substitute based on these parameters. The primary difference is position count (20 vs. 21), which represents a mechanical variation within the same connector family while maintaining all electrical and material specifications.

Parameter Comparison

Engineering Selection Recommendations

The M52-5002045 is the designated substitute for the obsolete M52-5002145. Both connectors maintain identical electrical specifications, material composition, and environmental ratings. The M52-5002045 carries active product status from Harwin Inc., ensuring continued availability and manufacturing support.

Selection of the M52-5002045 is appropriate for applications where the 20-position configuration aligns with circuit requirements. The connector maintains full compliance with ROHS3 and REACH regulations, identical thermal operating range, and equivalent current handling capacity. Both parts share the same series designation, contact geometry, and termination methodology, ensuring mechanical and electrical interchangeability within position-count constraints.

Frequently Asked Questions (FAQ)

Q: Can the M52-5002045 directly replace the M52-5002145 in existing designs?

A: The M52-5002045 is mechanically and electrically compatible with the M52-5002145 provided the application requires 20 positions or fewer. All contact specifications, pitch spacing, termination methods, and environmental ratings are identical. Position count is the only functional difference.

Q: What is the primary reason for substitution?

A: The M52-5002145 is obsolete. The M52-5002045 is an active product from the same Archer M52 series, offering continued manufacturing support and availability.

Q: Are there any compliance differences between these parts?

A: No. Both connectors are ROHS3 compliant, REACH unaffected, and carry UL94 V-0 flammability ratings. Regulatory status is identical.

Q: How do the mated stacking heights compare?

A: Both parts specify identical mated stacking heights of 7.1mm and 8.37mm, ensuring consistent board-to-board spacing in multi-connector assemblies.

Q: What is the packaging difference?

A: The M52-5002145 packaging is not specified in available data. The M52-5002045 is supplied in tube packaging.

Q: Are the contact materials and finishes identical?

A: Yes. Both connectors use phosphor bronze contacts with gold plating on mating and post surfaces. Contact length, insulation material, and all dimensional specifications are identical.