3M 951108-4620-AR-TP Rectangular Connector Header Surface Mount Right Angle 8 Position 2.00mm Equivalent & Substitute Parts

Part Overview

The 3M 951108-4620-AR-TP is a surface mount rectangular connector header with 8 positions at 0.079" (2.00mm) pitch, designed for board-to-board applications. This connector features male pins with gold-plated mating contacts, right-angle mounting, and push-pull fastening. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.079" (2.00mm)
Number of Positions	8
Number of Rows	1
Mounting Type	Surface Mount, Right Angle
Termination	Solder
Fastening Type	Push-Pull
Insulation Height	0.079" (2.00mm)
Contact Shape	Square
Contact Finish - Mating	Gold
Insulation Material	Thermoplastic
Operating Temperature	-25°C ~ 105°C
Material Flammability Rating	UL94 V-0
Current Rating	1A
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following critical parameters:

Connector Type: Header
Contact Type: Male Pin
Pitch - Mating: 0.079" (2.00mm)
Number of Positions: 8
Number of Rows: 1
Mounting Type: Surface Mount, Right Angle
Termination: Solder
Fastening Type: Push-Pull
Insulation Height: 0.079" (2.00mm)
Contact Shape: Square
Material Flammability Rating: UL94 V-0

All substitute parts listed meet these core electrical and mechanical parameters. Variations in contact length, contact finish thickness, insulation material composition, and operating temperature range do not preclude substitution when the primary functional parameters align.

Parameter Comparison

Parameter	3M 951108-4620-AR-TP	Amphenol ICC 10112684-G03-08ULF	Samtec MMT-108-01-F-SH-P-TR	Samtec MMT-108-01-F-SH-TR	Samtec MMT-108-01-FM-SH	Samtec MMT-108-01-H-SH	Samtec MMT-108-01-L-SH-A	Samtec MMT-108-01-L-SH-A-P	Samtec MMT-108-01-L-SH-A-P-TR
Manufacturer	3M	Amphenol ICC (FCI)	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.
Connector Type	Header	Header	Header	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Positions	8	8	8	8	8	8	8	8	8
Number of Rows	1	1	1	1	1	1	1	1	1
Mounting Type	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Insulation Height	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold or Gold, GXT™	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Length - Mating	0.175" (4.45mm)	0.157" (4.00mm)	0.126" (3.20mm)	0.126" (3.20mm)	0.126" (3.20mm)	0.126" (3.20mm)	0.126" (3.20mm)	0.126" (3.20mm)	0.126" (3.20mm)
Insulation Material	Thermoplastic	Thermoplastic, Glass Filled	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Operating Temperature	-25°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Current Rating	1A	2A (AC/DC)	3A	3A	3A	3A	3A	3A	3A
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Not specified	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts are active products with current manufacturing support, addressing the obsolescence status of the 3M 951108-4620-AR-TP. The Amphenol ICC 10112684-G03-08ULF and Samtec MMT series connectors maintain functional compatibility across the critical parameters: 8-position, 2.00mm pitch, surface mount right-angle configuration, and push-pull fastening.

Samtec MMT-108 variants offer enhanced operating temperature range (-55°C to 125°C versus -25°C to 105°C) and higher current ratings (3A versus 1A), providing design margin for thermal and electrical performance. All substitute parts carry UL94 V-0 flammability certification and MSL 1 moisture sensitivity rating, matching the original specification.

The Amphenol ICC part provides an intermediate option with 2A current rating and glass-filled thermoplastic insulation. Samtec variants with LCP insulation offer superior dimensional stability and thermal performance. Selection between Samtec options depends on specific application requirements: standard versions (MMT-108-01-F-SH-TR, MMT-108-01-FM-SH) for general applications, board-guided versions (MMT-108-01-L-SH-A, MMT-108-01-L-SH-A-P) for enhanced mechanical alignment, and tape-and-reel packaging options (MMT-108-01-F-SH-P-TR, MMT-108-01-L-SH-A-P-TR) for automated assembly.

Frequently Asked Questions (FAQ)

Q: Can the Samtec MMT-108 series directly replace the 3M 951108-4620-AR-TP?

A: Yes. All Samtec MMT-108 variants listed maintain the core functional parameters: 8-position header, 2.00mm pitch, surface mount right-angle configuration, male pin contacts, square contact geometry, gold-plated mating surfaces, and push-pull fastening. The connectors are mechanically and electrically compatible for board-to-board applications.

Q: What is the difference between MMT-108-01-L-SH-A and MMT-108-01-L-SH-A-P?

A: Both parts are identical except for the addition of the "P" suffix in MMT-108-01-L-SH-A-P, which indicates pick-and-place compatibility. The "L" designation indicates board guide features. Select the -P variant for automated assembly processes; select the standard variant for manual assembly.

Q: Does the Amphenol ICC 10112684-G03-08ULF offer any advantages over Samtec options?

A: The Amphenol ICC part features glass-filled thermoplastic insulation, which provides enhanced dimensional stability compared to standard thermoplastic. However, Samtec LCP insulation offers superior thermal performance and dimensional consistency. The Amphenol part is suitable for applications requiring 2A current; Samtec variants support 3A, providing additional design margin.

Q: Are there position-loaded variants available?

A: Yes. The Samtec MMT-108-01-L-SH-005 and MMT-108-01-L-SH-005-P-TR are configured with 7 positions loaded instead of all 8 positions. These variants are suitable only if your application requires 7-position connectivity; otherwise, select full 8-position variants.

Q: What packaging options are available for automated assembly?

A: Tape-and-reel (TR) packaging is available for the following variants: MMT-108-01-F-SH-P-TR, MMT-108-01-F-SH-TR, and MMT-108-01-L-SH-A-P-TR. Standard tube packaging is available for MMT-108-01-L-SH-A. Select tape-and-reel for high-volume automated placement; select tube packaging for lower-volume or manual assembly operations.

Q: How do contact length variations affect compatibility?

A: The original 3M part specifies 0.175" (4.45mm) mating contact length. Samtec variants feature 0.126" (3.20mm) contact length, and the Amphenol part features 0.157" (4.00mm). These variations do not affect electrical or mechanical compatibility when mating with standard receptacle connectors designed for 2.00mm pitch headers. Contact length differences reflect design optimization for specific mating interface geometries.

Q: Are all substitute parts RoHS compliant?

A: Yes. All Amphenol ICC and Samtec substitute parts listed are RoHS Compliant or ROHS3 Compliant. The original 3M part does not specify RoHS status. If RoHS compliance is required for your application, all listed substitutes meet this requirement.

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