Molex 0791091069 Equivalent & Substitute Parts

Part Overview

The Molex 0791091069 is a 40-position receptacle connector with 0.079" (2.00mm) pitch, designed for surface mount applications in board-to-board and cable interconnect solutions. This connector features gold-plated mating contacts, push-pull fastening, and operates across the -55°C to 125°C temperature range. The part is active in production status and maintains full RoHS3 compliance with MSL 1 rating. Substitute parts are identified to address inventory availability, packaging preferences, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

0791091069

MolexIn Stock: 10710791091069 Datasheet

Current PartRFQ

MMS-120-02-F-DV

Samtec Inc.In Stock: 1052MMS-120-02-F-DV Datasheet

MFR RecommendedRFQ

MMS-120-02-S-DV

Samtec Inc.In Stock: 1031MMS-120-02-S-DV Datasheet

MFR RecommendedRFQ

TLE-120-01-G-DV-A-P

Samtec Inc.In Stock: 1061TLE-120-01-G-DV-A-P Datasheet

MFR RecommendedRFQ

TLE-120-01-G-DV-K-TR

Samtec Inc.In Stock: 1595TLE-120-01-G-DV-K-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0791091069 is determined by strict alignment with the following core parameters: 40-position count, 0.079" (2.00mm) mating pitch, 2-row configuration with 0.079" row spacing, surface mount termination, push-pull fastening, gold-plated mating contacts, phosphor bronze contact material, LCP insulation, and -55°C to 125°C operating temperature range. All identified substitutes maintain these electrical and mechanical specifications. Variations in contact finish thickness, current rating per contact, connector subtype (standard receptacle versus pass-through), and packaging format are permitted within the substitution set, as these do not affect fundamental board-level compatibility or mating interface characteristics.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts maintain active production status and full RoHS3 compliance with MSL 1 rating, ensuring regulatory and environmental compatibility with the Molex 0791091069. The Samtec MMS-120-02-S-DV provides the closest electrical and mechanical alignment, matching the mating contact finish thickness of 30.0µin (0.76µm) and offering higher current capacity at 3.9A per contact. The Samtec MMS-120-02-F-DV is functionally equivalent with identical contact material and insulation specifications, also rated at 3.9A per contact, with the primary distinction being contact finish thickness of 3.00µin (0.076µm). The Samtec TLE series connectors (TLE-120-01-G-DV-A-P and TLE-120-01-G-DV-K-TR) introduce pass-through connector functionality with board guide and pick-and-place features, rated at 3.2A per contact. Selection between standard receptacle and pass-through variants depends on application-specific requirements for signal routing and assembly automation. Packaging format selection (Tube versus Tape & Reel) should align with production volume and assembly line requirements.

Frequently Asked Questions (FAQ)

Q: Are these substitute parts mechanically compatible with the Molex 0791091069 in existing designs?

A: Yes. All substitute parts maintain identical 40-position count, 0.079" (2.00mm) mating pitch, 2-row configuration, and push-pull fastening. Board-level footprints and mating interface dimensions are compatible. Minor variations in insulation height (0.175" to 0.177") fall within standard PCB design tolerances.

Q: What is the difference between standard receptacle and pass-through connector variants?

A: Standard receptacle variants (MMS-120-02-F-DV and MMS-120-02-S-DV) provide conventional board-to-board or cable interconnect. Pass-through variants (TLE-120-01-G-DV-A-P and TLE-120-01-G-DV-K-TR) include board guide features and pick-and-place compatibility for automated assembly, with signal routing capability through the connector body.

Q: How do contact finish thickness variations affect performance?

A: Contact finish thickness variations (3.00µin to 30.0µin) do not affect electrical performance or mating interface compatibility. All finishes provide equivalent corrosion resistance and contact reliability across the specified operating temperature range.

Q: What packaging options are available?

A: Samtec MMS and TLE-120-01-G-DV-A-P variants are supplied in Tube packaging. The TLE-120-01-G-DV-K-TR variant is supplied in Tape & Reel format, suitable for high-volume automated assembly operations.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All substitute parts are RoHS3 compliant with MSL 1 rating, matching the regulatory and environmental specifications of the Molex 0791091069.

Q: What current ratings should be considered for circuit design?

A: The Molex 0791091069 is rated at 1A. Samtec MMS variants support 3.9A per contact, and Samtec TLE variants support 3.2A per contact. Design margins should account for the specific current rating of the selected substitute part.