Molex 0791077224 Equivalent & Substitute Parts

Part Overview

The Molex 0791077224 is a 50-position receptacle connector from the Milli-Grid 79107 series, designed for board-to-board and cable applications. This through-hole mounted connector features 0.079" (2.00mm) pitch mating contacts with gold plating and is rated for 1A at 125V operation across -55°C to 125°C. The part is Active status and ROHS3 compliant, making it suitable for automotive, general purpose, and telecommunications applications. Equivalent parts are identified when they maintain the same electrical and mechanical interface specifications while offering alternative sourcing options or enhanced performance characteristics.

Substiute Parts

0791077224

MolexIn Stock: 10510791077224 Datasheet

Current PartRFQ

M22-7142542

Harwin Inc.In Stock: 958M22-7142542 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0791077224 is determined by strict equivalence in the following critical parameters:

• Connector Interface: Receptacle configuration with 50 female socket positions
• Pitch Specification: 0.079" (2.00mm) mating pitch and row spacing for mechanical compatibility
• Contact Configuration: 2-row arrangement with gold-plated mating contacts
• Mounting and Termination: Through-hole solder termination with push-pull fastening
• Electrical Performance: Minimum current and voltage ratings that meet or exceed 1A at 125V

The Harwin Inc. M22-7142542 qualifies as a manufacturer-recommended substitute based on matching these core interface parameters. While secondary characteristics such as insulation height, contact post length, and operating temperature range may vary, the primary mating interface and electrical specifications remain compatible for board-level integration.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0791077224 and Harwin M22-7142542 maintain Active product status and ROHS3 compliance, qualifying them for equivalent application in board-level connector requirements. The Harwin substitute provides enhanced electrical performance with 2A current rating and 500VAC voltage capability, exceeding the original specification of 1A at 125V. Both parts carry MSL Level 1 (Unlimited) moisture sensitivity classification and REACH Unaffected status, ensuring regulatory compliance across industrial and telecommunications applications.

Selection between these parts should be based on supply chain availability, packaging requirements (Molex supplied in Tube; Harwin in Bulk), and specific thermal operating window constraints. The Molex part supports the extended lower temperature range (-55°C minimum), while the Harwin part operates to a higher maximum temperature (105°C versus 125°C).

Frequently Asked Questions (FAQ)

Q: Can the Harwin M22-7142542 directly replace the Molex 0791077224 in existing designs?

A: Yes, for mating interface compatibility. Both connectors share identical 50-position, 0.079" (2.00mm) pitch receptacle configurations with push-pull fastening and solder termination. The Harwin part provides higher electrical ratings (2A, 500VAC) and is therefore suitable for applications currently rated at 1A, 125V.

Q: What are the key differences between these two parts?

A: Primary differences include insulation material (Molex uses glass-filled thermoplastic; Harwin uses liquid crystal polymer), insulation height (4.45mm versus 4.40mm), contact post length (1.91mm versus 2.40mm), and operating temperature range (Molex: -55°C to 125°C; Harwin: -40°C to 105°C). Electrical ratings also differ, with Harwin providing enhanced performance.

Q: Are there packaging considerations when switching between these parts?

A: Yes. The Molex 0791077224 is supplied in Tube packaging, while the Harwin M22-7142542 is supplied in Bulk packaging. Procurement and inventory management processes may require adjustment based on packaging format and minimum order quantities.

Q: Do both parts meet the same regulatory standards?

A: Both parts are ROHS3 compliant, REACH Unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity classification. Both are rated EAR99 for export control purposes and share the same HTSUS code (8536.69.4040).

Q: Which part should be selected for automotive applications?

A: Both parts are suitable for automotive applications. The Molex 0791077224 is explicitly listed for automotive use and supports the extended temperature range required in some automotive environments. The Harwin M22-7142542 is rated for general purpose and industrial applications with a narrower temperature window.