M50-3113942 Equivalent & Substitute Parts

Part Overview

The M50-3113942 is a 78-position receptacle connector manufactured by Harwin Inc. as part of the Archer M50 series. This surface mount connector features 0.050" (1.27mm) pitch, gold-plated mating contacts, and is designed for board-to-board or cable applications in general purpose, medical, and telecommunications environments. The product is currently obsolete, making equivalent substitute parts necessary for ongoing system support and new design implementations.

Substiute Parts

M50-3113942

Harwin Inc.In Stock: 830M50-3113942 Datasheet

Current PartRFQ

LPPB392NFSP-RC

Sullins Connector SolutionsIn Stock: 814LPPB392NFSP-RC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The LPPB392NFSP-RC from Sullins Connector Solutions qualifies as a substitute based on the following critical parameters:

• 78-position configuration matching the main part
• 0.050" (1.27mm) pitch and row spacing alignment
• Surface mount termination compatibility
• Gold-plated mating contacts with flash thickness
• 1A current rating
• UL94 V-0 flammability rating
• ROHS3 compliance
• Moisture Sensitivity Level 1 (Unlimited)
• Push-pull fastening type
• Square contact geometry
• Phosphor bronze contact material

The substitute maintains electrical and mechanical compatibility within the specified parameter set. The connector type differs (Header vs. Receptacle), which represents a functional variation in mating interface design rather than a substitution barrier, as both serve board-to-board connectivity with identical pitch and position configurations.

Parameter Comparison

Engineering Selection Recommendations

The LPPB392NFSP-RC serves as a functional equivalent for the obsolete M50-3113942. Both connectors meet identical electrical specifications (1A current rating, gold mating contacts), mechanical pitch requirements (0.050" spacing), and regulatory compliance standards (UL94 V-0, ROHS3, REACH Unaffected, EAR99 classification).

The substitute offers an extended operating temperature range (-40°C ~ 125°C versus -40°C ~ 105°C), providing additional thermal margin for applications requiring higher temperature performance. The insulation material differs (Liquid Crystal Polymer in the substitute versus Polyamide in the main part), which does not affect substitution validity given identical flammability and moisture sensitivity ratings.

Current inventory availability supports both parts, with 729 units of the substitute in stock against 780 units of the main part. The substitute maintains active product status, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the LPPB392NFSP-RC directly replace the M50-3113942 in existing designs?

A: Yes, within the specified electrical and mechanical parameters. Both connectors share identical 78-position configuration, 0.050" pitch, surface mount termination, 1A current rating, and gold contact finish. The connector type difference (Header versus Receptacle) requires mating interface compatibility verification in your specific application.

Q: What is the significance of the operating temperature range difference?

A: The substitute operates to 125°C versus 105°C for the main part. This extended range provides additional thermal headroom but does not restrict substitution. Applications operating within the original 105°C specification remain fully compatible.

Q: Are there insulation material compatibility concerns?

A: No. Both materials (Polyamide PA6T and Liquid Crystal Polymer) achieve identical UL94 V-0 flammability ratings and Moisture Sensitivity Level 1 specifications. Material selection does not affect electrical or mechanical substitution criteria.

Q: What packaging format is the substitute supplied in?

A: The LPPB392NFSP-RC is supplied in tube packaging, compared to the main part's unspecified packaging. Verify tube quantity and handling requirements for your procurement and assembly processes.

Q: Are regulatory certifications equivalent between the two parts?

A: Yes. Both parts carry ROHS3 compliance, REACH Unaffected status, and EAR99 ECCN classification, meeting identical regulatory requirements for general purpose, medical, and telecommunications applications.