Molex 0791077130 Equivalent & Substitute Parts

Part Overview

The Molex 0791077130 is a 12-position receptacle connector from the Milli-Grid 79107 series, designed for board-to-board or cable applications. This through-hole mounted connector features a 0.079" (2.00mm) pitch with gold-plated mating contacts and tin-plated posts. The component is actively produced and maintains full RoHS3 compliance with unlimited moisture sensitivity rating. Substitute parts are identified to address inventory availability, extended operating temperature ranges, or enhanced electrical ratings in specific application contexts.

Substiute Parts

0791077130

MolexIn Stock: 8620791077130 Datasheet

Current PartRFQ

M22-7140642

Harwin Inc.In Stock: 1164M22-7140642 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0791077130 is determined by strict alignment with the following critical parameters:

• Connector type: Receptacle with female socket contacts
• Position count: 12 positions
• Pitch specification: 0.079" (2.00mm) mating pitch with 2-row configuration
• Mounting method: Through-hole solder termination
• Fastening mechanism: Push-pull engagement
• Contact finish: Gold-plated mating surface with tin-plated posts
• Insulation material and color: Black thermoplastic or equivalent
• Compliance: RoHS3 and REACH requirements

The Harwin M22-7140642 qualifies as a manufacturer-recommended substitute based on matching these core parameters. Variations in secondary specifications such as insulation height, contact post length, operating temperature range, and current/voltage ratings reflect design differences between manufacturers but do not preclude functional substitution when application requirements fall within the substitute part's electrical and thermal envelope.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0791077130 and Harwin M22-7140642 maintain active production status and full RoHS3 compliance. Selection between these parts should be based on application-specific requirements:

The Molex 0791077130 is suitable for applications requiring the extended operating temperature range of -55°C to 125°C. This part is appropriate for automotive and telecommunications environments where lower temperature extremes are encountered.

The Harwin M22-7140642 provides enhanced electrical performance with 2A current rating and 500VAC voltage rating compared to the Molex specification of 1A at 125V. The Harwin part operates within -40°C to 105°C, which covers general industrial and telecommunications applications. The Liquid Crystal Polymer insulation material offers superior thermal and mechanical properties compared to glass-filled thermoplastic.

Both parts carry identical compliance certifications (RoHS3, REACH Unaffected, EAR99, MSL 1) and are suitable for direct substitution in applications where the electrical and thermal specifications of the substitute part meet or exceed the design requirements.

Frequently Asked Questions (FAQ)

Q: Can the Harwin M22-7140642 directly replace the Molex 0791077130 in all applications?

A: Direct substitution is possible when the application operating temperature range falls within -40°C to 105°C and the electrical requirements do not exceed 2A at 500VAC. If the application requires operation below -40°C or above 105°C, the Molex part's extended temperature range (-55°C to 125°C) is necessary.

Q: What are the physical differences between these connectors?

A: The primary physical differences are insulation height (0.175" vs 0.173") and contact post length (0.118" vs 0.094"). These minor variations reflect different manufacturing designs but do not affect mating compatibility or PCB footprint alignment for standard through-hole mounting.

Q: Are both parts suitable for automotive applications?

A: The Molex 0791077130 is explicitly listed for automotive applications and includes the extended temperature range typical of automotive specifications. The Harwin M22-7140642 is rated for general purpose and industrial applications. Automotive application use of the Harwin part requires verification that the -40°C to 105°C operating range and industrial-grade specifications meet the specific automotive standard requirements.

Q: What is the difference in insulation material, and does it affect performance?

A: The Molex part uses glass-filled thermoplastic insulation, while the Harwin part uses Liquid Crystal Polymer (LCP). LCP provides superior dimensional stability, lower moisture absorption, and better high-temperature performance. Both materials are suitable for the specified operating conditions and applications.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes, both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.

Q: What compliance certifications apply to both parts?

A: Both the Molex 0791077130 and Harwin M22-7140642 are RoHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.