3M 953210-2020-AR-TP Rectangular Connector: Equivalent & Substitute Parts

Part Overview

The 3M 953210-2020-AR-TP is a 10-position 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 part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	953210-2020-AR-TP
Manufacturer	3M
Connector Type	Receptacle, Bottom or Top Entry
Number of Positions	10
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Contact Type	Female Socket
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Operating Temperature	-40°C ~ 105°C
Current Rating	1A
Voltage Rating	1000VDC
Material Flammability Rating	UL94 V-0
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 953210-2020-AR-TP is determined by the following critical parameters:

Connector Type & Entry Method: Receptacle configuration (bottom or top entry acceptable)
Position Count & Pitch: 10 positions at 0.079" (2.00mm) mating pitch
Row Configuration: 2 rows with 0.079" (2.00mm) row spacing
Mounting & Termination: Surface mount with solder termination
Contact System: Female socket, gold-plated mating surface, push-pull fastening
Electrical Performance: Minimum 1A current rating, 1000VDC voltage capability
Environmental: UL94 V-0 flammability rating, -40°C to 105°C operating range

Substitute parts are grouped into two categories:

Category A - Direct Functional Equivalents: Parts meeting all critical parameters including voltage rating (1000VDC or higher), current rating (1A or higher), and identical temperature range (-40°C to 105°C).

Category B - Compatible Alternatives: Parts meeting core mechanical and electrical requirements but with variations in voltage rating, current capacity, or temperature range. These parts are electrically and mechanically compatible for applications not requiring the full 1000VDC specification.

Parameter Comparison

Parameter	953210-2020-AR-TP (3M)	0872631003 (Molex)	0872631095 (Molex)	0873811018 (Molex)	92086-310TRLF (Amphenol ICC)	A3-10DA-2SV(71) (Hirose)	A3A-10DA-2SV(71) (Hirose)	M22-6340542 (Harwin)	SMM-105-02-F-D (Samtec)
Connector Type	Receptacle, Bottom or Top Entry	Receptacle, Bottom Entry	Receptacle, Bottom Entry	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle, Bottom or Top Entry	Receptacle
Number of Positions	10	10	10	10	10	10	10	10	10
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 Rows	2	2	2	2	2	2	2	2	2
Row Spacing - 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)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Contact Type	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Operating Temperature	-40°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	Not specified	-55°C ~ 85°C	-55°C ~ 85°C	-40°C ~ 105°C	-55°C ~ 125°C
Current Rating	1A	1A	1A	1.9A	Not specified	1A	1A	2A	3.2A per Contact
Voltage Rating	1000VDC	125VAC	125VAC	125V	Not specified	200VAC	200VAC	500VAC	350VAC
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	Not specified	Not specified	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation - Category A (Direct Equivalent):

M22-6340542 (Harwin Inc.) is the closest functional equivalent to the 953210-2020-AR-TP. This part maintains identical mechanical configuration (10 positions, 0.079" pitch, 2-row layout, surface mount), identical entry method (bottom or top entry), and identical operating temperature range (-40°C to 105°C). The M22-6340542 exceeds the original voltage specification (500VAC vs. 1000VDC) and current rating (2A vs. 1A), providing enhanced electrical performance. The part is active, ROHS3 compliant, and carries UL94 V-0 flammability certification matching the original specification.

Secondary Recommendations - Category B (Compatible Alternatives):

SMM-105-02-F-D (Samtec Inc.) provides superior electrical performance with 3.2A per contact and 350VAC rating, extended temperature range (-55°C to 125°C), and active product status with ROHS3 compliance. This part is suitable for applications requiring higher current capacity or extended temperature operation.

0873811018 (Molex Milli-Grid 87381) offers increased current capacity (1.9A) and maintains the square contact geometry of the original part. This part is active and ROHS3 compliant, suitable for applications requiring higher current handling.

A3A-10DA-2SV(71) (Hirose Electric) provides board guide features and maintains square contact geometry. Operating temperature is limited to -55°C to 85°C, making this part suitable for applications not requiring the full -40°C to 105°C range. The part is active and ROHS3 compliant.

Not Recommended:

0872631003 and 0872631095 (Molex Milli-Grid 87263) feature reduced voltage rating (125VAC) and circular contact geometry, representing a significant departure from the original specification. These parts are suitable only for low-voltage applications.

92086-310TRLF (Amphenol ICC Minitek) lacks specified voltage and current ratings, limiting its applicability for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can I use the Molex 0872631003 as a direct replacement for the 3M 953210-2020-AR-TP?

A: The Molex 0872631003 shares the same 10-position, 0.079" pitch configuration and surface mount termination. However, it features a reduced voltage rating (125VAC vs. 1000VDC) and circular contact geometry instead of square contacts. This part is suitable only for applications operating at 125VAC or lower and where contact geometry is not a design constraint.

Q: What is the key difference between the Harwin M22-6340542 and the original 3M part?

A: The M22-6340542 maintains identical mechanical and thermal specifications as the 953210-2020-AR-TP, including the same operating temperature range (-40°C to 105°C) and entry method (bottom or top entry). The primary difference is enhanced electrical performance: the M22-6340542 provides 500VAC voltage rating and 2A current capacity compared to the original 1000VDC and 1A specification. Both parts feature UL94 V-0 flammability rating and gold-plated mating contacts.

Q: Why do some substitute parts have different operating temperature ranges?

A: Operating temperature range is determined by the insulation material and contact design of each connector series. The Hirose A3 series (A3-10DA-2SV(71) and A3A-10DA-2SV(71)) operates to 85°C maximum due to polyphenylene sulfide (PPS) insulation material selection. The Samtec SMM-105-02-F-D extends to 125°C using liquid crystal polymer (LCP) insulation. Applications requiring the full -40°C to 105°C range should select the Harwin M22-6340542 or verify that the reduced temperature range is acceptable for the intended use.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed are RoHS compliant (ROHS3 or RoHS Compliant status). The original 3M 953210-2020-AR-TP does not specify RoHS status due to its obsolete classification. All recommended substitutes meet current RoHS requirements.

Q: What packaging options are available for these substitute parts?

A: Packaging varies by manufacturer and part number. Molex 0872631003 and Hirose A3-10DA-2SV(71) and A3A-10DA-2SV(71) are supplied in Tube packaging. Amphenol ICC 92086-310TRLF is supplied in Tape & Reel (TR). Samtec SMM-105-02-F-D is supplied in Tube. Harwin M22-6340542 is supplied in Tube. Verify packaging requirements for your assembly process before final part selection.

Q: Can I use the Samtec SMM-105-02-F-D in place of the 3M part for high-temperature applications?

A: The Samtec SMM-105-02-F-D operates to 125°C, exceeding the original part's 105°C maximum. However, the original 3M part specifies -40°C minimum operating temperature, while the Samtec part specifies -55°C minimum. For applications requiring operation below -40°C, the Samtec part provides extended low-temperature capability. For applications requiring operation above 105°C, the Samtec part is suitable. Verify that the 350VAC voltage rating and 3.2A per contact current rating meet your application requirements.

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