M52-5054345 Equivalent & Substitute Parts

Part Overview

The M52-5054345 is a 43-position receptacle connector manufactured by Harwin Inc., designed for board-to-board applications with 0.050" (1.27mm) pitch surface mount technology. This connector features gold-plated female socket contacts, push-pull fastening, and operates across -40°C to 105°C. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning.

Substiute Parts

M52-5054345

Harwin Inc.In Stock: 1120M52-5054345 Datasheet

Current PartRFQ

M52-5052545

Harwin Inc.In Stock: 1693M52-5052545 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M52-5054345 is determined by the following critical parameters:

• Connector Type & Contact Type: Must be Receptacle with Female Socket contacts
• Pitch - Mating: Must match 0.050" (1.27mm) spacing
• Mounting Type: Must be Surface Mount with Solder termination
• Fastening Type: Must be Push-Pull
• Contact Finish: Must be Gold-plated
• Operating Temperature Range: Must support -40°C ~ 105°C
• Material Compliance: Must maintain UL94 V-0 and ROHS3 Compliant status
• Insulation Material: Must use Polyamide (PA6T), Nylon 6T
• Contact Material: Must be Phosphor Bronze

The substitute part M52-5052545 shares all critical electrical and mechanical parameters with the main part. The primary difference is the number of positions (25 vs. 43), which represents a functional reduction rather than an incompatibility. This part maintains identical pitch, mounting technology, contact materials, compliance certifications, and operating specifications.

Parameter Comparison

Engineering Selection Recommendations

The M52-5052545 is the manufacturer-recommended substitute for the obsolete M52-5054345. Both parts are manufactured by Harwin Inc. and maintain identical electrical and mechanical specifications across all critical parameters including pitch, mounting technology, contact materials, and operating temperature range.

The M52-5052545 holds Active product status, ensuring continued availability and manufacturing support. Both parts carry ROHS3 Compliant and REACH Unaffected certifications, maintaining regulatory compliance for medical, telecommunications, and general-purpose applications.

The primary design consideration is the position count difference: the substitute accommodates 25 positions versus the original 43 positions. This reduction requires circuit redesign to accommodate the lower pin count. The identical pitch, mounting footprint compatibility, and contact specifications ensure mechanical and electrical interchangeability within this constraint.

Frequently Asked Questions (FAQ)

Q: Can M52-5052545 be used as a direct replacement for M52-5054345?

A: The M52-5052545 shares all electrical and mechanical specifications with the M52-5054345, including pitch, mounting type, contact materials, and operating temperature range. However, the 25-position configuration differs from the original 43-position design, requiring circuit modification to accommodate the reduced pin count.

Q: What are the key compatibility factors between these connectors?

A: Compatibility is ensured through matching pitch (0.050"), mounting technology (surface mount solder), fastening mechanism (push-pull), contact finish (gold), insulation material (Polyamide PA6T), and operating temperature range (-40°C to 105°C). Both parts maintain identical current rating (1A) and flammability certification (UL94 V-0).

Q: Why is the M52-5054345 listed as obsolete?

A: The M52-5054345 has reached end-of-life status. The M52-5052545 represents the active product line continuation from Harwin Inc. for this connector family, with identical core specifications and improved availability.

Q: Are there packaging differences between these parts?

A: The M52-5054345 packaging is not specified in the available data. The M52-5052545 is supplied in Tube packaging. Confirm packaging requirements with your procurement specifications.

Q: Do both connectors support the same applications?

A: Both parts are rated for General Purpose, Medical, and Telecommunications applications. The identical operating temperature range (-40°C ~ 105°C), current rating (1A), and compliance certifications (ROHS3, REACH Unaffected) support equivalent application deployment within the position count constraint.