3M 951114-4620-AR-TP Equivalent & Substitute Parts

Part Overview

The 3M 951114-4620-AR-TP is a surface mount, right-angle rectangular connector header with 14 positions at 2.00mm pitch. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The connector features unshrouded male pins with solder termination and push-pull fastening, designed for board-to-board interconnection in compact form factors.

Key Parameters

Parameter	Value
Manufacturer Part Number	951114-4620-AR-TP
Manufacturer	3M
Category	Rectangular Connectors
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.079" (2.00mm)
Number of Positions	14
Number of Rows	1
Mounting Type	Surface Mount, Right Angle
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold (Flash)
Insulation Material	Thermoplastic
Operating Temperature	-25°C ~ 105°C
Current Rating	1A
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the 3M 951114-4620-AR-TP are selected based on the following critical parameters that must match or exceed the original specification:

Core Matching Criteria:

Pitch - Mating: 0.079" (2.00mm) — exact match required for mechanical compatibility
Number of Positions: 14 — exact match required for circuit connectivity
Number of Rows: 1 — exact match required for form factor
Mounting Type: Surface Mount, Right Angle — exact match required for PCB assembly
Contact Type: Male Pin — exact match required for mating interface
Termination: Solder — exact match required for assembly process
Fastening Type: Push-Pull — exact match required for mechanical retention
Insulation Material: Thermoplastic or equivalent polymer — acceptable alternatives include Polyamide (PA6T) and Liquid Crystal Polymer (LCP)
Material Flammability Rating: UL94 V-0 — minimum requirement for safety compliance
Insulation Color: Black — standard specification

Performance Parameters:

Operating Temperature: Substitute parts must support the -25°C ~ 105°C range or exceed it
Current Rating: Substitute parts must support minimum 1A per contact
Contact Finish - Mating: Gold plating required for corrosion resistance

All substitute parts listed below meet or exceed these criteria and are classified as active products with current manufacturing status.

Parameter Comparison

Parameter	3M 951114-4620-AR-TP	Harwin M22-5331405	Samtec MMT-114-01-F-SH	Samtec MMT-114-01-L-SH-A
Manufacturer	3M	Harwin Inc.	Samtec Inc.	Samtec Inc.
Product Status	Obsolete	Active	Active	Active
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Positions	14	14	14	14
Number of Rows	1	1	1	1
Mounting Type	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
Termination	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.175" (4.45mm)	0.165" (4.20mm)	0.126" (3.20mm)	0.126" (3.20mm)
Insulation Height	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Contact Shape	Square	Square	Square	Square
Contact Finish - Mating	Gold (Flash)	Gold (Flash)	Gold (3.00µin)	Gold (10.0µin)
Contact Material	Copper Alloy	Brass	Phosphor Bronze	Phosphor Bronze
Insulation Material	Thermoplastic	Polyamide (PA6T), Nylon 6T	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Operating Temperature	-25°C ~ 105°C	-40°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C
Current Rating	1A	2A per Contact	3A	3A
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Black
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitute: Harwin M22-5331405

The Harwin M22-5331405 is the closest functional equivalent to the 3M 951114-4620-AR-TP. It maintains identical pitch, position count, and mounting configuration. The contact length difference (0.165" vs. 0.175") is within acceptable tolerance for standard board-to-board applications. This part is ROHS3 compliant and carries active product status, ensuring long-term availability and supply chain stability.

Alternative Substitutes: Samtec MMT Series

The Samtec MMT-114 series provides multiple variants suitable for substitution. All variants share identical core specifications: 14-position, 2.00mm pitch, surface mount right-angle headers with solder termination. Key differences among Samtec variants relate to contact finish thickness, insulation material (LCP provides superior thermal and mechanical properties compared to thermoplastic), and optional features such as board lock or pick-and-place compatibility.

Samtec MMT-114-01-L-SH-A is recommended as the primary Samtec alternative due to its board guide feature, which enhances mechanical stability during assembly and mating operations. The extended operating temperature range (-55°C ~ 125°C) and higher current rating (3A) exceed the original specification requirements.

Compliance Considerations:

All substitute parts maintain UL94 V-0 flammability rating and MSL 1 classification, ensuring compatibility with standard manufacturing and storage protocols. Samtec and Harwin parts carry ROHS3 compliance certification, meeting current regulatory requirements for electronic components in most jurisdictions.

Frequently Asked Questions (FAQ)

Q: Can I use Samtec MMT-114 series parts as direct replacements for the 3M 951114-4620-AR-TP?

A: Yes. All Samtec MMT-114 variants listed maintain the critical matching parameters: 14 positions, 2.00mm pitch, surface mount right-angle configuration, and push-pull fastening. The primary difference is contact length (3.20mm vs. 4.45mm), which does not affect electrical or mechanical compatibility in standard board-to-board applications. Verify your specific PCB layout accommodates the shorter contact length.

Q: What is the difference between Samtec MMT-114-01-F-SH and MMT-114-01-L-SH-A?

A: Both parts share identical electrical and mechanical specifications. The primary differences are contact finish thickness (3.00µin vs. 10.0µin gold plating) and features. The MMT-114-01-L-SH-A includes a board guide feature for enhanced mechanical alignment during assembly. The thicker gold plating on the MMT-114-01-L-SH-A provides additional corrosion resistance in demanding environments.

Q: Are there variants with reduced position loading?

A: Yes. Samtec offers MMT-114-01-F-SH-007-K and MMT-114-01-L-SH-001-K-TR with 13 positions loaded instead of 14. These variants include pick-and-place features for automated assembly. Use these only if your circuit design requires 13 positions; otherwise, select fully loaded 14-position variants.

Q: What is the difference between Samtec variants with "LC" designation?

A: The "LC" suffix indicates board lock feature, which provides mechanical retention through a locking mechanism. Variants MMT-114-01-F-SH-LC and MMT-114-01-L-SH-LC include this feature. Select board lock variants if your application requires enhanced mechanical security against accidental disconnection.

Q: Does the Harwin M22-5331405 offer cuttable header functionality?

A: Yes. The Harwin M22-5331405 is specified as a cuttable header, allowing field customization of position count if required. This feature is not available on Samtec variants. Select the Harwin part if your application requires post-manufacturing position adjustment.

Q: What packaging options are available?

A: The 3M original part packaging is not specified. Harwin M22-5331405 is supplied in bulk packaging. Samtec MMT-114-01-L-SH-A is supplied in tube packaging. Most other Samtec variants do not specify packaging. Confirm packaging requirements with your procurement process before finalizing part selection.

Q: Are all substitute parts RoHS compliant?

A: Harwin and Samtec substitute parts are ROHS3 compliant. The original 3M part RoHS status is not specified in the documentation. All substitute parts meet current RoHS requirements for new designs and production.

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

A: The original 3M part is rated at 1A per contact. Harwin M22-5331405 is rated at 2A per contact. Samtec MMT-114 variants are rated at 3A per contact. Higher current ratings indicate superior contact design and material properties. All substitute parts exceed the original specification and are fully compatible with circuits designed for 1A operation.

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