Molex 0791077205 Equivalent & Substitute Parts

Part Overview

The Molex 0791077205 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 0.079" (2.00mm) pitch spacing, gold-plated mating contacts, and tin-plated posts for solder termination. The part is Active status and widely used in automotive, general purpose, and telecommunications applications. Finding equivalent or substitute parts may be necessary due to inventory constraints, lead time requirements, or specific application demands while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	12
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Operating Temperature Range	-55°C ~ 125°C
Current Rating	1A
Voltage Rating	125V
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0791077205 is determined by strict alignment of the following critical parameters:

Connector Type & Contact Configuration: Must be receptacle with female socket contacts
Position Count & Arrangement: Must maintain 12 positions in 2-row configuration
Pitch Specifications: Mating pitch and row spacing must both be 0.079" (2.00mm)
Mounting & Termination: Through-hole mounting with solder termination required
Fastening Mechanism: Push-pull fastening type must be maintained
Contact Finish: Gold-plated mating surface required
Compliance: RoHS3 compliance required

The Harwin Inc. M22-7140642 qualifies as a manufacturer-recommended substitute based on alignment with these core parameters. Both parts share identical position count, pitch spacing, mounting method, termination type, fastening mechanism, and mating contact finish specification.

Parameter Comparison

Parameter	Molex 0791077205	Harwin M22-7140642
Manufacturer	Molex	Harwin Inc.
Series	Milli-Grid 79107	M22
Connector Type	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket
Number of Positions	12	12
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold
Insulation Color	Black	Black
Contact Material	Phosphor Bronze	Phosphor Bronze
Product Status	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

Both the Molex 0791077205 and Harwin M22-7140642 are Active status products with full RoHS3 compliance and REACH unaffected status, making either suitable for new designs and production applications. The parts are mechanically and electrically interchangeable based on the critical parameters that define connector compatibility: identical position count, pitch spacing, mounting configuration, and contact finish specifications.

Selection between these parts should be based on availability, lead time, cost considerations, and specific application requirements. Both parts maintain compliance with relevant regulatory standards and are suitable for automotive, general purpose, and telecommunications applications.

Frequently Asked Questions (FAQ)

Q: Can the Harwin M22-7140642 be used as a direct replacement for the Molex 0791077205?

A: Yes. Both connectors share identical specifications for the critical parameters that determine mechanical and electrical compatibility: 12 positions, 0.079" (2.00mm) pitch, 2-row configuration, through-hole mounting, solder termination, push-pull fastening, and gold-plated mating contacts. Both are RoHS3 compliant and Active status products.

Q: Are there differences in operating temperature ranges between these parts?

A: Yes. The Molex 0791077205 operates from -55°C to 125°C, while the Harwin M22-7140642 operates from -40°C to 105°C. Application requirements must be evaluated to determine if the Harwin part's temperature range is acceptable for your specific use case.

Q: What are the differences in current and voltage ratings?

A: The Molex 0791077205 is rated for 1A at 125V, while the Harwin M22-7140642 is rated for 2A at 500VAC. The Harwin part provides higher electrical capacity. Verify that your application requirements align with the selected part's ratings.

Q: Are there mechanical dimension differences?

A: Minor differences exist in insulation height (Molex: 0.175" vs. Harwin: 0.173") and contact post length (Molex: 0.075" vs. Harwin: 0.094"). These variations are within typical manufacturing tolerances for this connector category and do not affect interchangeability for standard board-to-board or cable applications.

Q: Do both parts have the same packaging?

A: Yes. Both the Molex 0791077205 and Harwin M22-7140642 are supplied in tube packaging.

Q: Are both parts compliant with regulatory requirements?

A: Yes. Both parts are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8536.69.4040.

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