3M 951111-4620-AR-TP Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 951111-4620-AR-TP is a surface mount, right-angle rectangular connector header with 11 positions at 0.079" (2.00mm) pitch. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The connector features male pins with gold-plated mating contacts, solder termination, and push-pull fastening, designed for board-to-board interconnection in compact form factors.

Substiute Parts

951111-4620-AR-TP

3MIn Stock: 983951111-4620-AR-TP Datasheet

Current PartRFQ

MMT-111-01-L-SH

Samtec Inc.In Stock: 854MMT-111-01-L-SH Datasheet

MFR RecommendedRFQ

MMT-111-01-L-SH-A

Samtec Inc.In Stock: 1047MMT-111-01-L-SH-A Datasheet

MFR RecommendedRFQ

MMT-111-01-L-SH-K

Samtec Inc.In Stock: 1200MMT-111-01-L-SH-K Datasheet

MFR RecommendedRFQ

MMT-111-01-L-SH-K-TR

Samtec Inc.In Stock: 773MMT-111-01-L-SH-K-TR Datasheet

MFR RecommendedRFQ

MMT-111-01-S-SH-009-P-TR

Samtec Inc.In Stock: 1216MMT-111-01-S-SH-009-P-TR Datasheet

MFR RecommendedRFQ

MMT-111-01-S-SH-K-TR

Samtec Inc.In Stock: 955MMT-111-01-S-SH-K-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3M 951111-4620-AR-TP are qualified based on the following critical parameters that must match or exceed the original specification:

Mandatory Matching Parameters:

• Number of Positions: 11
• Pitch - Mating: 0.079" (2.00mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Surface Mount, Right Angle
• Termination: Solder
• Fastening Type: Push-Pull
• Contact Finish - Mating: Gold
• Material Flammability Rating: UL94 V-0

Allowable Variations:

• Operating Temperature Range: Substitute parts may exceed the original range
• Current Rating: Substitute parts may exceed the original rating
• Contact Material: Phosphor Bronze is acceptable as an upgrade from Copper Alloy
• Insulation Material: Liquid Crystal Polymer (LCP) is acceptable as an upgrade from Thermoplastic
• Product Status: Active status is preferred over obsolete

All qualified substitutes are manufactured by Samtec Inc. under the MMT series and maintain full electrical and mechanical compatibility with the original 3M connector.

Parameter Comparison

Engineering Selection Recommendations

All Samtec MMT series substitutes listed above are active products with ROHS3 compliance, providing superior long-term availability compared to the obsolete 3M 951111-4620-AR-TP. The substitutes maintain full electrical and mechanical compatibility while offering enhanced performance specifications.

Selection by Application Requirements:

For standard board-to-board applications with no specific packaging constraints, MMT-111-01-L-SH offers the baseline substitute with tube packaging and full position loading.

For automated assembly processes requiring tape and reel packaging, MMT-111-01-L-SH-K-TR or MMT-111-01-S-SH-K-TR are appropriate selections. Both feature pick-and-place compatibility and tape & reel delivery.

For applications requiring board guide features to enhance mechanical stability, MMT-111-01-L-SH-A includes integrated board guide functionality while maintaining all core electrical specifications.

For applications with reduced position requirements, MMT-111-01-S-SH-009-P-TR is configured with 10 loaded positions instead of 11, suitable for designs that do not require the full position count.

All substitutes exceed the original operating temperature range (-55°C to 125°C versus -25°C to 105°C) and current rating (3A versus 1A), providing design margin for thermal and electrical performance.

Frequently Asked Questions (FAQ)

Q: Are all Samtec MMT-111 variants electrically interchangeable with the 3M 951111-4620-AR-TP?

A: Yes. All listed Samtec substitutes maintain identical electrical specifications for the critical parameters: 11 positions, 0.079" (2.00mm) pitch, male pin contacts, gold-plated mating surfaces, solder termination, and push-pull fastening. The connectors are mechanically and electrically compatible for direct substitution.

Q: What is the difference between the "L" and "S" designations in the Samtec part numbers?

A: The "L" designation indicates long contact length (0.126" / 3.20mm), while "S" indicates short contact length. Both are compatible with the original 3M connector specifications. Contact length selection depends on PCB thickness and mating depth requirements in your specific application.

Q: Why do some substitutes have different contact finish thicknesses?

A: Contact finish thickness variations (10.0µin, 30.0µin) represent different gold plating specifications. All variants meet the gold-plated mating contact requirement and are functionally equivalent. Thicker plating may provide extended contact life in high-cycle mating applications.

Q: What is the significance of the "K" suffix in part numbers?

A: The "K" suffix indicates pick-and-place compatibility, a feature beneficial for automated assembly processes. Parts without this designation are also suitable for manual or semi-automated assembly.

Q: Does the "Board Guide" feature in MMT-111-01-L-SH-A affect compatibility?

A: No. The integrated board guide is an additional mechanical feature that enhances connector stability during mating. It does not affect electrical compatibility and is fully backward compatible with applications designed for standard connectors without board guides.

Q: What packaging options are available, and how do they affect selection?

A: Samtec offers tube packaging (standard for manual assembly) and tape & reel packaging (optimized for automated pick-and-place assembly). Packaging selection depends on your manufacturing process. Electrical and mechanical specifications remain identical across all packaging options.

Q: Is the MMT-111-01-S-SH-009-P-TR with 10 loaded positions compatible with designs requiring all 11 positions?

A: No. This variant is configured with only 10 loaded positions and is suitable only for applications designed to use 10 positions. For designs requiring all 11 positions, select variants with "All" positions loaded.

Q: Are all substitutes RoHS compliant?

A: Yes. All Samtec MMT-111 variants listed are ROHS3 compliant, meeting current environmental and regulatory requirements. The original 3M part does not specify RoHS status.

Q: What is the current rating difference, and does it affect compatibility?

A: The original 3M connector is rated for 1A per contact, while all Samtec substitutes are rated for 3A per contact. This represents an upgrade in current-carrying capacity. Substitutes are fully compatible with applications designed for the original 1A rating and provide additional design margin for higher-current applications.