3M 953248-2000-AR-TP Equivalent & Substitute Parts

Part Overview

The 3M 953248-2000-AR-TP is a 48-position rectangular receptacle connector with 0.079" (2.00mm) pitch, designed for surface mount board-to-board applications. This connector features gold-plated mating contacts, push-pull fastening, and operates across -40°C to 105°C. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and procurement.

Substiute Parts

953248-2000-AR-TP

3MIn Stock: 963953248-2000-AR-TP Datasheet

Current PartRFQ

0791096012

MolexIn Stock: 9000791096012 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3M 953248-2000-AR-TP is determined by the following critical parameters:

• Connector type: Receptacle configuration
• Contact pitch: 0.079" (2.00mm) mating pitch
• Row configuration: 2-row arrangement with 0.079" row spacing
• Mounting method: Surface mount termination
• Contact finish: Gold plating on mating surfaces
• Fastening mechanism: Push-pull engagement
• Current and voltage ratings: Minimum 1A at 1000VDC

The Molex 0791096012 is identified as a manufacturer-recommended substitute. While this part operates at a reduced voltage rating (125V versus 1000VDC) and contains 44 positions instead of 48, it maintains compatibility across the primary mechanical and electrical parameters that govern board-to-board connector interchangeability: identical mating pitch, row spacing, surface mount construction, gold contact finish, and push-pull fastening.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0791096012 is an active product with ROHS3 compliance and REACH unaffected status, providing supply chain continuity for the obsolete 3M 953248-2000-AR-TP. The substitute maintains mechanical compatibility through identical mating pitch, row spacing, surface mount construction, and push-pull fastening. Both connectors support 1A current rating and operate within overlapping temperature ranges.

Selection of the Molex substitute requires evaluation of application voltage requirements. The 3M part is rated for 1000VDC operation, while the Molex part is rated for 125V. Applications operating below 125V can utilize the Molex substitute without electrical derating. Applications requiring the full 1000VDC rating of the original part cannot use this substitute.

The position count difference (48 versus 44) must be accommodated through circuit redesign or connector footprint modification. The Molex part includes a board guide feature not specified for the 3M connector.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0791096012 directly replace the 3M 953248-2000-AR-TP in all applications?

A: Direct replacement is possible only for applications operating at 125V or below. The voltage rating difference (125V versus 1000VDC) and position count difference (44 versus 48) require application-level evaluation. Mechanical compatibility is maintained through identical mating pitch, row spacing, and surface mount construction.

Q: What are the critical parameters that determine substitution compatibility?

A: Mating pitch (0.079"), row spacing (0.079"), number of rows (2), mounting type (surface mount), contact finish (gold), and fastening mechanism (push-pull) are the primary parameters governing interchangeability. Current rating (1A) is matched between both parts.

Q: How does the position count difference affect compatibility?

A: The 3M connector accommodates 48 positions while the Molex substitute provides 44 positions. Circuit designs utilizing all 48 positions require modification to operate with the 44-position substitute. Designs using fewer than 44 positions can utilize the substitute without signal routing changes.

Q: Are there compliance or supply chain advantages to using the Molex substitute?

A: The Molex 0791096012 is an active product with ROHS3 compliance and REACH unaffected status, providing ongoing availability and regulatory alignment. The 3M part is obsolete, making the Molex substitute the preferred choice for new designs and long-term procurement.

Q: What is the significance of the board guide feature on the Molex connector?

A: The Molex 0791096012 includes a board guide feature not specified for the 3M 953248-2000-AR-TP. This feature provides mechanical alignment assistance during board assembly and may improve mating reliability in production environments.