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

Part Overview

The 3M 953220-2000-AR-TP is a 20-position rectangular 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, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for new designs or production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	953220-2000-AR-TP
Manufacturer	3M
Category	Rectangular Connectors
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
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 eligibility is determined by strict alignment with the following critical parameters:

Connector Type & Entry Method: Receptacle configuration (bottom or top entry acceptable)
Position Count & Pitch: 20 positions at 0.079" (2.00mm) mating pitch
Row Configuration: 2 rows with 0.079" (2.00mm) row spacing
Mounting Technology: Surface mount termination with solder
Fastening Mechanism: Push-pull engagement system
Contact Finish: Gold-plated mating surface
Electrical Ratings: Minimum 1A current capacity and 1000VDC voltage rating
Flammability Compliance: UL94 V-0 material rating
Temperature Range: Operating capability within or exceeding -40°C to 105°C

All substitute parts listed meet these core requirements. Variations in contact material, insulation color, insulation height, and contact finish thickness do not preclude substitution when electrical and mechanical parameters remain compatible.

Parameter Comparison

Parameter	3M 953220-2000-AR-TP	Molex 0872632003	Hirose A3-20DA-2SV(71)	Hirose A3A-20DA-2SV(71)	Harwin M22-6341042	Samtec SMM-110-02-F-D	Samtec SMM-110-02-F-D-K-TR	Samtec SMM-110-02-F-D-LC
Manufacturer	3M	Molex	Hirose	Hirose	Harwin	Samtec	Samtec	Samtec
Number of Positions	20	20	20	20	20	20	20	20
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)
Number of Rows	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)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Fastening Type	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
Current Rating (Amps)	1A	1A	1A	1A	2A	3.2A per Contact	3.2A per Contact	3.2A per Contact
Voltage Rating	1000VDC	125VAC	200VAC	200VAC	500VAC	350VAC	350VAC	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	-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
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Active Product Availability: All substitute parts listed carry active product status, ensuring long-term supply chain viability and manufacturer support. The 3M 953220-2000-AR-TP is obsolete and should be replaced in new designs.

Compliance & Certification: All substitute options maintain UL94 V-0 flammability compliance and MSL 1 moisture sensitivity rating, matching the original part's environmental specifications. Molex 0872632003, Hirose A3-20DA-2SV(71), Hirose A3A-20DA-2SV(71), Harwin M22-6341042, and all Samtec SMM-110 variants carry ROHS3 compliance, supporting modern regulatory requirements.

Electrical Performance: Samtec SMM-110 series connectors (SMM-110-02-F-D, SMM-110-02-F-D-K-TR, SMM-110-02-F-D-LC) provide the highest current rating at 3.2A per contact and 350VAC voltage rating, exceeding the original 1A/1000VDC specification. Harwin M22-6341042 offers 2A current capacity at 500VAC. Molex 0872632003 and Hirose variants maintain 1A current ratings with lower voltage specifications suitable for standard applications.

Temperature Operating Range: Samtec SMM-110 series extends to -55°C to 125°C, providing the widest thermal envelope. Harwin M22-6341042 matches the original -40°C to 105°C range. Hirose A3 series operates -55°C to 85°C, which is narrower at the upper limit.

Packaging & Logistics: Samtec SMM-110-02-F-D-K-TR is supplied in tape and reel format for automated assembly. Molex 0872632003 and Hirose variants are supplied in tube packaging. Samtec SMM-110-02-F-D and SMM-110-02-F-D-LC are available in tube format. Select packaging based on production volume and assembly equipment compatibility.

Frequently Asked Questions (FAQ)

Q: Can I directly replace the 3M 953220-2000-AR-TP with any of these substitute parts?

A: Yes, all listed substitute parts maintain the critical mechanical and electrical parameters: 20 positions, 0.079" (2.00mm) pitch, 2-row configuration, surface mount termination, push-pull fastening, and gold-plated mating contacts. Physical board layout compatibility requires verification of insulation height and connector footprint dimensions.

Q: What is the difference between Samtec SMM-110-02-F-D and SMM-110-02-F-D-LC?

A: Both connectors share identical electrical specifications (3.2A per contact, 350VAC, -55°C to 125°C). The primary difference is the board lock feature present in SMM-110-02-F-D-LC, which provides mechanical retention on the PCB. SMM-110-02-F-D-LC is supplied in tube packaging, while SMM-110-02-F-D is available in tube format as well.

Q: Why do some substitute parts have lower voltage ratings than the original 3M part?

A: The original 3M 953220-2000-AR-TP is rated for 1000VDC, which is exceptionally high for this connector class. Substitute parts are rated for AC voltages (125VAC to 500VAC) or lower DC voltages (350VAC equivalent). Application requirements determine whether the original voltage specification is necessary. For standard board-to-board signal and power distribution, the substitute ratings are sufficient.

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

A: Both connectors are electrically and mechanically identical with 20 positions, 0.079" (2.00mm) pitch, and -55°C to 85°C operating range. The A3A-20DA-2SV(71) includes a board guide feature for improved alignment during assembly. Select the A3A variant if board guide functionality is required for your application.

Q: Are all substitute parts RoHS compliant?

A: Yes, all active substitute parts listed carry ROHS3 compliance certification. The original 3M 953220-2000-AR-TP does not specify RoHS status. For applications requiring RoHS compliance, any of the substitute options satisfy regulatory requirements.

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

A: Samtec SMM-110-02-F-D-K-TR is supplied in tape and reel format, optimized for automated pick-and-place assembly. Molex 0872632003, Hirose A3-20DA-2SV(71), Hirose A3A-20DA-2SV(71), and other Samtec variants are available in tube packaging for manual or semi-automated assembly. Confirm packaging availability with your supplier for production volume requirements.

Q: Can I use Harwin M22-6341042 as a direct replacement?

A: Yes. Harwin M22-6341042 matches the original -40°C to 105°C operating temperature range and maintains identical mechanical configuration. It provides 2A current capacity at 500VAC, exceeding the original 1A specification. This part is suitable for applications requiring higher current handling or industrial-grade reliability.

Q: What is the insulation height difference between the original and substitute parts?

A: The original 3M 953220-2000-AR-TP has an insulation height of 0.169" (4.30mm). Samtec SMM-110 series is 0.140" (4.66mm), Molex 0872632003 is 0.110" (2.79mm), and Hirose A3 series is 0.165" (4.20mm). Verify PCB clearance and mating connector depth to ensure mechanical compatibility in your specific application.

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