Molex 0791098653 Equivalent & Substitute Parts

Part Overview

The Molex 0791098653 is an 8-position receptacle connector in the Milli-Grid 79109 series, designed for surface mount applications requiring board-to-board or cable interconnection. This connector features 0.079" (2.00mm) pitch mating with gold-plated contacts and operates across -55°C to 125°C. The part is active in production with 1027 units in current inventory. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit equivalent connector types.

Substiute Parts

0791098653

MolexIn Stock: 10870791098653 Datasheet

Current PartRFQ

NPPN042FFKS-RC

Sullins Connector SolutionsIn Stock: 5353NPPN042FFKS-RC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0791098653 is determined by the following critical parameters:

• 8-position connector configuration
• 0.079" (2.00mm) pitch mating spacing
• 2-row layout with 0.079" (2.00mm) row spacing
• Surface mount termination
• Gold contact finish on mating surfaces
• Push-pull fastening type
• Square contact geometry
• Phosphor bronze contact material

The identified substitute part NPPN042FFKS-RC from Sullins Connector Solutions meets these core mechanical and electrical compatibility criteria. Both parts share identical position count, pitch, row configuration, mounting method, and contact material specifications, enabling direct functional substitution in applications where connector type variation (receptacle vs. header) is acceptable within the system design.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0791098653 and Sullins NPPN042FFKS-RC are active production parts with ROHS3 compliance and MSL 1 rating, suitable for immediate deployment. The Molex part operates across a wider temperature range (-55°C to 125°C) compared to the Sullins substitute (-40°C to 105°C), making the Molex part the preferred choice for applications requiring extended low-temperature performance or automotive environments with severe thermal cycling. The Sullins part provides higher current capacity (2A vs. 1A), which may be advantageous in power distribution applications. Selection between these parts should be based on specific application temperature requirements and current demands, with consideration given to the connector type difference (receptacle vs. header) in the overall system mating strategy.

Frequently Asked Questions (FAQ)

Q: Can the Sullins NPPN042FFKS-RC directly replace the Molex 0791098653 in all applications?

A: Direct replacement is possible for applications where the connector type change from receptacle to header is compatible with the mating connector strategy. Both parts share identical pitch, position count, row spacing, and contact material. System-level design review is required to confirm mating compatibility.

Q: What is the primary difference between these two connectors?

A: The Molex part is a receptacle connector, while the Sullins part is a header connector. Both are surface mount with identical mechanical pitch and electrical contact specifications. The choice between them depends on whether your system design uses receptacle-to-receptacle or header-to-receptacle mating pairs.

Q: Are there temperature limitations when substituting the Sullins part for the Molex part?

A: Yes. The Molex 0791098653 operates from -55°C to 125°C, while the Sullins NPPN042FFKS-RC operates from -40°C to 105°C. Applications requiring operation below -40°C or above 105°C must use the Molex part.

Q: Does the current rating difference affect substitution eligibility?

A: The Sullins part has a higher current rating (2A vs. 1A). For applications requiring 1A or less, either part is suitable. For applications exceeding 1A but within 2A, the Sullins part is acceptable. Applications exceeding 2A require alternative connector selection.

Q: Are both parts RoHS compliant?

A: Yes. Both the Molex 0791098653 and Sullins NPPN042FFKS-RC are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, suitable for standard PCB assembly and storage conditions.