3M 953220-2000-AR-PR Equivalent & Substitute Parts

Part Overview

The 3M 953220-2000-AR-PR is a 20-position rectangular connector receptacle 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, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for new designs and production continuity.

Key Parameters

Parameter	Specification
Connector Type	Receptacle, Bottom or Top Entry
Number of Positions	20
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
Termination	Solder
Current Rating	1A
Voltage Rating	1000VDC
Operating Temperature	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0
Insulation Material	Thermoplastic
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

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

Connector Configuration: 20 positions, 0.079" (2.00mm) pitch, 2-row layout with 0.079" 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 and 1000VDC voltage rating
Environmental Compliance: UL94 V-0 flammability rating, MSL 1, operating temperature range compatibility

Substitute parts are grouped into two categories:

Category A - Direct Mechanical & Electrical Equivalents: Parts with identical or superior electrical ratings, matching mechanical envelope, and active product status. These include Molex 0872632003, Harwin M22-6341042, and Samtec SMM-110 series variants.

Category B - Functional Equivalents with Design Variations: Parts meeting core electrical and mechanical requirements but with minor dimensional or material differences. These include Hirose A3-20DA-2SV(71) and A3A-20DA-2SV(71), which feature different insulation materials and operating temperature ranges.

Parameter Comparison

Parameter	3M 953220-2000-AR-PR	Molex 0872632003	Hirose A3-20DA-2SV(71)	Hirose A3A-20DA-2SV(71)	Harwin M22-6341042	Samtec SMM-110-02-F-D
Positions	20	20	20	20	20	20
Pitch (mm)	2.00	2.00	2.00	2.00	2.00	2.00
Rows	2	2	2	2	2	2
Row Spacing (mm)	2.00	2.00	2.00	2.00	2.00	2.00
Mounting Type	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
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Current Rating (A)	1	1	1	1	2	3.2 per Contact
Voltage Rating	1000VDC	125VAC	200VAC	200VAC	500VAC	350VAC
Operating Temperature	-40°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 85°C	-55°C ~ 85°C	-40°C ~ 105°C	-55°C ~ 125°C
Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	Not Specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation - Harwin M22-6341042: This part maintains identical mechanical envelope, operating temperature range (-40°C ~ 105°C), and connector entry configuration (bottom or top entry) as the 3M original. Current rating of 2A exceeds the 1A requirement. ROHS3 compliance and active product status ensure long-term availability and supply chain stability.

Secondary Recommendation - Samtec SMM-110-02-F-D-LC: Offers superior electrical performance with 3.2A per contact and extended operating temperature range (-55°C ~ 125°C). ROHS3 compliant with active status. Board lock feature provides enhanced mechanical retention. Multiple packaging options (SMM-110-02-F-D-K-TR in tape & reel) support high-volume production requirements.

Alternative - Molex 0872632003: Milli-Grid 87263 series provides board guide feature and active product status with ROHS3 compliance. Operating temperature extends to -55°C. Voltage rating of 125VAC is lower than original specification; suitable for applications not requiring 1000VDC rating.

Alternative - Hirose A3-20DA-2SV(71) or A3A-20DA-2SV(71): Both maintain 20-position 2.00mm pitch configuration with active status and ROHS3 compliance. A3A variant includes board guide feature. Operating temperature maximum of 85°C is lower than original; suitable for applications within -55°C ~ 85°C range. Polyphenylene Sulfide (PPS) insulation material differs from original thermoplastic.

All substitute parts carry MSL 1 (Unlimited) moisture sensitivity rating and EAR99 export classification matching the original part.

Frequently Asked Questions (FAQ)

Q: Can I use Samtec SMM-110-02-F-D as a direct replacement for 3M 953220-2000-AR-PR?

A: Yes, for applications within the Samtec part's operating temperature range (-55°C ~ 125°C). The 20-position 2.00mm pitch configuration, surface mount solder termination, and push-pull fastening are identical. The Samtec part provides superior current rating (3.2A per contact vs. 1A) and voltage rating (350VAC). Verify your application does not require the original 1000VDC rating.

Q: What is the key difference between Hirose A3-20DA-2SV(71) and A3A-20DA-2SV(71)?

A: The A3A variant includes a board guide feature for enhanced mechanical alignment during assembly. Both parts are electrically and mechanically equivalent with identical 20-position 2.00mm pitch configuration, surface mount termination, and push-pull fastening. The board guide in the A3A variant provides additional positioning stability.

Q: Does the Molex 0872632003 have the same voltage rating as the 3M original?

A: No. The Molex part is rated for 125VAC, while the 3M original is rated for 1000VDC. The Molex part is suitable for applications operating at 125VAC or lower. For applications requiring 1000VDC or higher voltage ratings, select Harwin M22-6341042 (500VAC) or Samtec SMM-110-02-F-D (350VAC), or confirm your actual voltage requirement.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All active substitute parts listed carry ROHS3 compliance certification. The original 3M part does not specify RoHS status due to its obsolete classification.

Q: What packaging options are available for high-volume production?

A: Samtec SMM-110-02-F-D-K-TR is supplied in tape & reel (TR) packaging suitable for automated pick-and-place assembly. Molex 0872632003, Hirose A3-20DA-2SV(71), A3A-20DA-2SV(71), and Harwin M22-6341042 are supplied in tube packaging. Confirm packaging requirements with your assembly process specifications.

Q: Can I use these substitutes in applications requiring -40°C minimum operating temperature?

A: Harwin M22-6341042 and the original 3M part both specify -40°C minimum. Samtec SMM-110-02-F-D and Molex 0872632003 extend to -55°C minimum, providing additional margin. Hirose A3 series parts specify -55°C minimum. All parts exceed the -40°C requirement.

Q: What is the difference in insulation material between substitute parts?

A: The 3M original uses thermoplastic insulation. Harwin M22-6341042 uses polyamide (PA6T) nylon 6T. Hirose A3 series uses polyphenylene sulfide (PPS). Samtec SMM-110 series uses liquid crystal polymer (LCP). All materials carry UL94 V-0 flammability rating. Material selection affects mechanical properties and chemical resistance; confirm compatibility with your application environment.

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