M52-5050245 Equivalent & Substitute Parts

Part Overview

The M52-5050245 is a 2-position receptacle connector manufactured by Harwin Inc., designed for board-to-board surface mount applications with 0.050" (1.27mm) pitch spacing. This connector features gold-plated mating contacts, solder termination, and push-pull fastening, rated for 1A current at operating temperatures from -40°C to 105°C. The product is classified as obsolete, making identification of compatible substitute components essential for ongoing system support and procurement planning.

Substiute Parts

M52-5050245

Harwin Inc.In Stock: 1270M52-5050245 Datasheet

Current PartRFQ

RSM-102-02-L-S

Samtec Inc.In Stock: 1074RSM-102-02-L-S Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The RSM-102-02-L-S manufactured by Samtec Inc. qualifies as a direct substitute based on the following critical parameters:

Matching Parameters:

• Connector type: Receptacle with female socket contacts
• Position count: 2 positions
• Mating pitch: 0.050" (1.27mm)
• Style: Board to board
• Mounting: Surface mount with solder termination
• Fastening: Push-pull mechanism
• Mating contact finish: Gold
• Flammability rating: UL94 V-0
• Moisture sensitivity: MSL 1 (Unlimited)
• Compliance: ROHS3 and REACH unaffected

The RSM-102-02-L-S maintains functional and mechanical compatibility with the M52-5050245 across all critical substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

The RSM-102-02-L-S is a qualified substitute for the obsolete M52-5050245. Selection of the Samtec component is supported by:

• Active product status ensuring continued availability and manufacturing support
• Identical compliance certifications (ROHS3, REACH unaffected, EAR99)
• Matching mechanical and electrical interface specifications
• Enhanced current rating (3.1A vs. 1A) providing design margin
• Extended operating temperature range (-55°C to 125°C vs. -40°C to 105°C)
• Equivalent moisture sensitivity classification

The substitute part maintains full compatibility with existing board designs and assembly processes while providing access to an actively manufactured component.

Frequently Asked Questions (FAQ)

Q: Can the RSM-102-02-L-S directly replace the M52-5050245 in existing designs?

A: Yes. Both connectors share identical mating pitch (0.050"), position count (2), contact type (female socket), mounting method (surface mount), and termination approach (solder). Board layouts and mating interfaces are compatible.

Q: What are the key differences between these parts?

A: The RSM-102-02-L-S offers higher current capacity (3.1A per contact vs. 1A), wider operating temperature range (-55°C to 125°C vs. -40°C to 105°C), and active product status. Insulation material differs (LCP vs. Polyamide PA6T) and contact post finish is tin-plated on the substitute.

Q: Are there compliance or certification concerns with substitution?

A: No. Both parts maintain ROHS3 compliance, REACH unaffected status, and UL94 V-0 flammability rating. Moisture sensitivity levels are identical (MSL 1).

Q: Does packaging affect substitution compatibility?

A: Packaging format (bulk for RSM-102-02-L-S) does not affect electrical or mechanical compatibility. Verify packaging quantities align with procurement requirements.

Q: What is the mated stacking height for the substitute?

A: The RSM-102-02-L-S mated stacking height specification was not provided in the available data. Consult the manufacturer datasheet for precise mechanical envelope requirements in space-constrained applications.