3M 951210-2520-AR-TP Equivalent & Substitute Parts

Part Overview

The 3M 951210-2520-AR-TP is a surface mount rectangular connector header with 10 positions arranged in 2 rows at 2.00mm pitch. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The connector features male pins with gold-plated mating contacts, tin-plated posts, and operates across -25°C to 105°C with a 1A current rating per contact.

Key Parameters

Parameter	Value
Manufacturer Part Number	951210-2520-AR-TP
Manufacturer	3M
Category	Rectangular Connectors
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.079" (2.00mm)
Number of Positions	10
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Contact Finish - Post	Tin
Contact Material	Copper Alloy
Insulation Material	Thermoplastic
Operating Temperature	-25°C ~ 105°C
Current Rating	1A
Material Flammability Rating	UL94 V-0
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 3M 951210-2520-AR-TP is determined by strict alignment of the following critical parameters:

Pitch - Mating: 0.079" (2.00mm)
Number of Positions: 10
Number of Rows: 2
Row Spacing - Mating: 0.079" (2.00mm)
Connector Type: Header
Contact Type: Male Pin
Mounting Type: Surface Mount
Termination: Solder
Fastening Type: Push-Pull
Contact Shape: Square
Insulation Material: Thermoplastic or equivalent
Material Flammability Rating: UL94 V-0
Moisture Sensitivity Level: 1 (Unlimited)

All substitute parts listed below meet these core electrical and mechanical parameters. Variations in contact finish thickness, contact material composition, insulation polymer type, and operating temperature range are permitted within the substitute group, as these do not affect board-level compatibility or mating interface performance.

Parameter Comparison

Parameter	3M 951210-2520-AR-TP	57202-F52-05LF	57202-G52-05LF	57202-S52-05LF	57202-S52-05ULF	M22-5320546R	MMT-105-01-F-DV-A-TR	MMT-105-01-F-DV-LC	MMT-105-01-F-DV-LC-TR	MMT-105-01-L-DV-LC-TR	MMT-105-01-S-DV-LC-P
Manufacturer	3M	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Harwin Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.
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)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Positions	10	10	10	10	10	10	10	10	10	10	10
Number of Rows	2	2	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)	0.079" (2.00mm)	0.079" (2.00mm)
Connector Type	Header	Header	Header	Header	Header	Header, Cuttable	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	Male Pin	Male Pin
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	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	Push-Pull	Push-Pull
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold, GXT™	Gold, GXT™	Gold, GXT™	Tin	Gold	Gold	Gold	Gold	Gold
Contact Finish - Post	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin
Contact Material	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Polyamide (PA6T), Nylon 6T	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	Not specified	Not specified	Not specified	Not specified	-40°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Current Rating	1A	2A (AC/DC)	2A (AC/DC)	2A (AC/DC)	2A (AC/DC)	1A per Contact	3A	3A	3A	3A	3A
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	UL94 V-0	UL94 V-0
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Not specified	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts listed are active production components with current manufacturer support, eliminating obsolescence risk associated with the 3M 951210-2520-AR-TP.

Amphenol ICC (FCI) Minitek® 2.00mm Series (57202-F52-05LF, 57202-G52-05LF, 57202-S52-05LF, 57202-S52-05ULF): These connectors are RoHS Compliant and provide higher current ratings (2A AC/DC) and voltage ratings (200V AC/DC) compared to the original part. Packaging options include Box, Bulk, and Tube formats. Contact finish variations (GXT™ technology) offer enhanced durability. These parts are direct functional equivalents with superior electrical performance margins.

Harwin Inc. M22 Series (M22-5320546R): This connector features a cuttable header design with phosphor bronze contacts and polyamide insulation. Operating temperature range extends to -40°C, providing broader thermal coverage. Current rating matches the original part at 1A per contact. ROHS3 compliance and REACH Unaffected status support regulatory requirements. Mated stacking heights of 4.6mm and 6.8mm provide mechanical flexibility.

Samtec Inc. MMT Series (MMT-105-01-F-DV-A-TR, MMT-105-01-F-DV-LC, MMT-105-01-F-DV-LC-TR, MMT-105-01-L-DV-LC-TR, MMT-105-01-S-DV-LC-P): These connectors deliver the highest current rating (3A) and widest operating temperature range (-55°C to 125°C). Liquid Crystal Polymer insulation provides superior thermal and mechanical stability. Board Lock and Board Guide features enhance mechanical retention. ROHS3 compliance and MSL 1 rating ensure compatibility with modern manufacturing processes. Variants include options for tape and reel packaging and pick-and-place compatibility.

Selection should prioritize active production status, regulatory compliance (RoHS/REACH), and thermal/electrical performance margins appropriate to the application.

Frequently Asked Questions (FAQ)

Q: Can I directly substitute the 3M 951210-2520-AR-TP with any of these parts without PCB redesign?

A: Yes. All substitute parts maintain identical pitch (2.00mm), position count (10), row configuration (2 rows), and mounting type (surface mount). Footprint compatibility is preserved. No PCB redesign is required for mechanical or electrical interface compatibility.

Q: What is the difference between the Amphenol ICC and Samtec options?

A: Amphenol ICC Minitek® parts offer 2A current rating and are available in multiple packaging formats (Box, Bulk, Tube). Samtec MMT parts provide higher current capacity (3A), extended operating temperature range (-55°C to 125°C), and advanced insulation materials (LCP). Samtec variants include mechanical retention features (Board Lock, Board Guide) and pick-and-place options.

Q: Does the contact finish variation (gold thickness, GXT™ technology) affect compatibility?

A: No. Contact finish variations do not affect mating interface compatibility or electrical performance at the board level. These variations relate to contact durability and corrosion resistance, which are application-dependent considerations.

Q: Why do some substitute parts have higher current ratings than the original?

A: Higher current ratings indicate superior contact design and material composition. These parts are backward-compatible with the original 1A requirement and provide additional performance margin for future design iterations or higher-current applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active production substitute parts listed are RoHS Compliant or ROHS3 Compliant. The original 3M part does not specify RoHS status due to its obsolete classification.

Q: What packaging options are available?

A: Amphenol ICC offers Box, Bulk, and Tube packaging. Harwin provides Tape & Reel (TR) packaging. Samtec variants include standard and tape-and-reel options. Packaging selection depends on production volume and assembly process requirements.

Q: Can I use the Harwin M22-5320546R if my application requires lower operating temperatures?

A: Yes. The M22-5320546R operates from -40°C to 105°C, which covers the original part's -25°C to 105°C range and extends lower temperature capability. This part is suitable for applications requiring enhanced cold-temperature performance.

Q: Which substitute offers the best thermal performance?

A: Samtec MMT series connectors operate from -55°C to 125°C, providing the widest thermal envelope. Liquid Crystal Polymer insulation in these parts offers superior thermal stability compared to standard thermoplastic materials.

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