Molex 0791077261 Equivalent & Substitute Parts

Part Overview

The Molex 0791077261 is a 24-position receptacle connector from the Milli-Grid 79107 series, designed for board-to-board and cable applications. This through-hole connector features 0.079" (2.00mm) pitch mating contacts with gold plating and is rated for 1A at 125V across operating temperatures from -55°C to 125°C. The part is currently active in production with 1018 units in stock. Equivalent substitute parts are identified to provide design flexibility, inventory alternatives, and sourcing options while maintaining electrical and mechanical compatibility.

Substiute Parts

0791077261

MolexIn Stock: 10440791077261 Datasheet

Current PartRFQ

MMS-112-01-F-DV

Samtec Inc.In Stock: 1045MMS-112-01-F-DV Datasheet

MFR RecommendedRFQ

MMS-112-01-S-DV

Samtec Inc.In Stock: 1138MMS-112-01-S-DV Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0791077261 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Matching Parameters (Required for Substitution):

• Connector type: Receptacle
• Contact type: Female socket
• Number of positions: 24
• 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
• Insulation color: Black
• Insulation height: 0.175" (4.45mm)
• Operating temperature range: -55°C to 125°C
• Contact material: Phosphor bronze

The Samtec MMS-112-01-F-DV and MMS-112-01-S-DV connectors meet all critical mechanical and electrical compatibility requirements. Both parts are from the MMS series and maintain identical pitch, position count, row configuration, and mounting specifications. Differences in contact post length (0.115" vs. 0.075") and current rating per contact (3.9A vs. 1A) represent enhanced performance characteristics that do not prevent substitution in applications designed for the original part.

Parameter Comparison

Engineering Selection Recommendations

All three connectors maintain active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. The Samtec MMS-112-01-F-DV and MMS-112-01-S-DV are direct functional equivalents to the Molex 0791077261 based on matching mechanical pitch, position count, row configuration, and electrical operating parameters.

The primary distinction between the two Samtec options is contact finish thickness on the mating surface: MMS-112-01-F-DV specifies 3.00µin (0.076µm) while MMS-112-01-S-DV specifies 30.0µin (0.76µm), matching the original Molex specification. Both Samtec parts feature enhanced current rating (3.9A per contact versus 1A) and longer contact post length (0.115" versus 0.075"), representing performance improvements that do not compromise compatibility with existing designs.

Selection between these substitutes should be based on inventory availability, lead time requirements, and specific application constraints related to contact post length and finish thickness specifications.

Frequently Asked Questions (FAQ)

Q: Can Samtec MMS-112-01-F-DV and MMS-112-01-S-DV be used interchangeably with Molex 0791077261?

A: Both Samtec parts are mechanically and electrically compatible with the Molex 0791077261. They share identical pitch (0.079"), position count (24), row configuration (2 rows), mounting type (through hole), and operating temperature range (-55°C to 125°C). The primary differences are contact post length and mating surface finish thickness, which do not prevent substitution in applications designed for the original part.

Q: What is the difference between MMS-112-01-F-DV and MMS-112-01-S-DV?

A: Both parts are functionally equivalent with identical mechanical and electrical specifications. The distinction is in contact finish thickness on the mating surface: MMS-112-01-F-DV provides 3.00µin (0.076µm) while MMS-112-01-S-DV provides 30.0µin (0.76µm), which matches the original Molex specification.

Q: Are there any PCB layout considerations when substituting these connectors?

A: The identical pitch (0.079"), row spacing (0.079"), and insulation height (0.175") ensure that PCB footprints designed for the Molex 0791077261 are compatible with both Samtec alternatives. However, the longer contact post length on Samtec parts (0.115" versus 0.075") may affect solder joint geometry and should be evaluated for specific board thickness and assembly process requirements.

Q: Do all three connectors meet the same compliance standards?

A: All three connectors are ROHS3 compliant. The Molex part carries Moisture Sensitivity Level 1 (Unlimited), while the Samtec parts are listed as Not Applicable for MSL, indicating no moisture sensitivity restrictions.

Q: What is the current rating difference, and does it affect substitution?

A: The Molex 0791077261 is rated for 1A total, while both Samtec alternatives are rated for 3.9A per contact. The higher current rating on Samtec parts represents enhanced performance capability and does not prevent substitution in applications designed for the original 1A specification.