Molex 0791077264 Equivalent & Substitute Parts

Part Overview

The Molex 0791077264 is a 30-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 with gold-plated contacts and operates across -55°C to 125°C. The part is active and in production with 1044 units currently in stock. Equivalent parts are necessary when primary inventory is unavailable, when design requirements call for alternative contact ratings or insulation materials, or when supply chain optimization is needed.

Substiute Parts

0791077264

MolexIn Stock: 10560791077264 Datasheet

Current PartRFQ

MMS-115-01-F-DV

Samtec Inc.In Stock: 811MMS-115-01-F-DV Datasheet

MFR RecommendedRFQ

MMS-115-01-H-DV

Samtec Inc.In Stock: 985MMS-115-01-H-DV Datasheet

MFR RecommendedRFQ

MMS-115-01-S-DV

Samtec Inc.In Stock: 1005MMS-115-01-S-DV Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0791077264 is determined by the following critical parameters that must remain constant:

• Connector type: Receptacle
• Number of positions: 30
• 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
• Contact shape: Square
• Contact material: Phosphor bronze

The three Samtec MMS series parts (MMS-115-01-S-DV, MMS-115-01-F-DV, MMS-115-01-H-DV) meet all critical substitution criteria. These parts differ from the original in contact post finish material and current rating capacity, which represent design improvements rather than compatibility limitations.

Parameter Comparison

Engineering Selection Recommendations

All three Samtec MMS series substitutes are active products with ROHS3 compliance and EAR99 export classification, matching the regulatory status of the original Molex part. The substitutes maintain full mechanical and electrical compatibility through identical pitch, row configuration, mounting type, and operating temperature range.

The Samtec parts offer increased current capacity (3.9A per contact versus 1A) and use Liquid Crystal Polymer insulation instead of glass-filled thermoplastic, representing design improvements. Contact post length is longer on the Samtec parts (0.115" versus 0.075"), which may require PCB design verification for through-hole depth compatibility.

Selection between the three Samtec variants depends on post-finish requirements: MMS-115-01-S-DV and MMS-115-01-F-DV feature tin post finish, while MMS-115-01-H-DV features gold post finish. The mating contact finish thickness differs on MMS-115-01-F-DV (3.00µin) compared to the other variants (30.0µin), which matches the original specification.

Frequently Asked Questions (FAQ)

Q: Are the Samtec MMS-115 series connectors mechanically compatible with the Molex 0791077264?

A: Yes. All critical mechanical parameters are identical: 30 positions, 0.079" (2.00mm) pitch, 2-row configuration, 0.079" row spacing, through-hole mounting, and push-pull fastening. The longer contact post on Samtec parts (0.115" versus 0.075") requires verification that PCB through-hole depth accommodates the additional length.

Q: What is the difference between the three Samtec substitute options?

A: The primary differences are contact post finish material and mating contact finish thickness. MMS-115-01-S-DV and MMS-115-01-F-DV have tin post finish; MMS-115-01-H-DV has gold post finish. MMS-115-01-F-DV has reduced mating contact finish thickness (3.00µin versus 30.0µin). All three deliver 3.9A per contact current capacity.

Q: Can I use these substitutes if my design specifies 1A current rating?

A: Yes. The higher current rating of the Samtec parts (3.9A per contact) is a design improvement that does not create compatibility issues for applications rated at 1A. The connector will operate within its specifications.

Q: Are there any compliance or regulatory differences between the original and substitute parts?

A: No. All parts are ROHS3 compliant, classified as EAR99, and share the same HTSUS code (8536.69.4040). Regulatory status is equivalent.

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

A: The original uses glass-filled thermoplastic insulation; the Samtec substitutes use Liquid Crystal Polymer (LCP). Both materials support the identical -55°C to 125°C operating temperature range and maintain the same insulation height (0.175"). The material change does not affect electrical or mechanical compatibility.

Q: Which substitute should I choose for new designs?

A: Selection depends on post-finish requirements for your solder process and PCB design. Verify that your PCB through-hole depth accommodates the 0.115" contact post length. For applications requiring gold post finish, specify MMS-115-01-H-DV. For tin post finish, either MMS-115-01-S-DV or MMS-115-01-F-DV is suitable.