Molex 0791077273 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0791077273 is a 48-position receptacle connector featuring 0.079" (2.00mm) pitch, through-hole solder termination, and gold-plated mating contacts. This connector is part of the Milli-Grid 79107 series and is actively manufactured for board-to-board and cable applications. The part is ROHS3 compliant and rated for -55°C to 125°C operation with 1A current capacity per contact and 125V voltage rating.

Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring 48-position rectangular connectors with matching electrical and mechanical specifications.

Substiute Parts

0791077273

MolexIn Stock: 11610791077273 Datasheet

Current PartRFQ

MMS-124-01-S-DV

Samtec Inc.In Stock: 893MMS-124-01-S-DV Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0791077273 is determined by strict alignment with the following critical parameters:

• Connector configuration: 48-position receptacle with female socket contacts
• Pitch specification: 0.079" (2.00mm) mating pitch with 2-row configuration
• Mounting and termination: Through-hole solder termination with push-pull fastening
• Contact interface: Gold-plated mating surface for signal integrity
• Environmental rating: Operating temperature range of -55°C to 125°C
• Regulatory compliance: ROHS3 compliance and EAR99 classification

The Samtec MMS-124-01-S-DV meets these core substitution criteria as a 48-position receptacle connector with identical pitch, row configuration, mounting type, termination method, and fastening mechanism. Both parts maintain gold-plated mating contacts, operate across the same temperature range, and carry equivalent regulatory certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0791077273 and Samtec MMS-124-01-S-DV are active products with ROHS3 compliance and REACH unaffected status, making them suitable for current procurement and long-term supply chain planning.

The Molex 0791077273 is the primary specification part with established inventory (1100 pcs) and documented performance in the Milli-Grid 79107 series. The Samtec MMS-124-01-S-DV serves as a qualified substitute with comparable electrical and mechanical characteristics, offering alternative sourcing with 784 pcs available inventory.

Selection between these parts should be based on availability, lead time, cost considerations, and existing supplier relationships, as both meet the core electrical and mechanical requirements for 48-position rectangular connector applications.

Frequently Asked Questions (FAQ)

Q: Are the Molex 0791077273 and Samtec MMS-124-01-S-DV mechanically interchangeable?

A: Yes. Both connectors feature identical 48-position configuration, 0.079" (2.00mm) pitch, 2-row layout, through-hole mounting, and push-pull fastening. Mating interface dimensions and contact spacing are equivalent.

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

A: The Molex part is rated at 1A per contact with 125V voltage rating. The Samtec part specifies 3.9A per contact capacity. Both operate across -55°C to 125°C. Application requirements determine which current rating is appropriate.

Q: Do both parts use the same contact finish specifications?

A: Both parts feature gold-plated mating contacts at 30.0µin (0.76µm) thickness. Post contact finish differs: Molex uses tin plating at 74.8µin (1.90µm), while Samtec post finish thickness is not specified in available data.

Q: Are there insulation material differences?

A: Yes. The Molex 0791077273 uses thermoplastic glass-filled insulation, while the Samtec MMS-124-01-S-DV uses Liquid Crystal Polymer (LCP). Both materials support the operating temperature range and provide equivalent mechanical performance.

Q: What is the contact length difference?

A: The Molex part has a post contact length of 0.075" (1.91mm), while the Samtec part measures 0.115" (2.92mm). This difference may affect PCB layout and mating depth considerations in specific applications.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the Molex 0791077273 and Samtec MMS-124-01-S-DV are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.