3M 2312-6221-TP Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 2312-6221-TP is an active rectangular connector header designed for through-hole mounting applications. This 12-position, 2-row connector operates at 0.100" (2.54mm) pitch and supports board-to-board or cable interconnections with a 3A current rating. The connector features tin-lead plated copper alloy contacts, thermoplastic glass-filled insulation, and operates across -55°C to 105°C. Substitute parts are necessary when addressing specific application requirements including RoHS compliance, alternative contact finishes, material specifications, or enhanced temperature ranges.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	12
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Current Rating	3A
Operating Temperature	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 3M 2312-6221-TP is determined by strict alignment with the following core parameters: 12-position, 2-row configuration; 0.100" (2.54mm) mating pitch and row spacing; male pin contact type; through-hole solder termination; push-pull fastening; and UL94 V-0 flammability rating. All substitute parts maintain these specifications. Secondary parameters including contact finish (tin-lead, tin, or gold), contact material (copper alloy, phosphor bronze, or brass), insulation material (thermoplastic, PBT, or polyamide), and operating temperature range variations are permitted within the substitute group. Current rating of 3A or higher is acceptable. RoHS compliance status and contact finish thickness variations do not preclude substitution eligibility.

Parameter Comparison

Parameter	2312-6221-TP (3M)	826942-6 (TE)	87215-3 (TE)	87227-6 (TE)	A1-12PA-2.54DSA(71) (Hirose)	M20-9980645 (Harwin)	M20-9980646 (Harwin)
Manufacturer	3M	TE Connectivity	TE Connectivity	TE Connectivity	Hirose Electric	Harwin Inc.	Harwin Inc.
Series	2300	AMPMODU Mod II	AMPMODU Mod II	AMPMODU Mod II	A1	M20	M20
Connector Type	Header	Header, Breakaway	Header	Header	Header	Header, Cuttable	Header, Cuttable
Number of Positions	12	12	12	12	12	12	12
Number of Rows	2	2	2	2	2	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Contact Shape	Square	Square	Circular	Square	Square	Square	Square
Contact Material	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Brass	Brass	Brass
Contact Finish - Mating	Tin-Lead	Tin	Gold	Gold	Gold	Gold	Tin
Contact Finish - Post	Tin-Lead	Tin	Gold	Gold	Tin	Not specified	Tin
Insulation Material	Thermoplastic, Glass Filled	Polybutylene Terephthalate (PBT)	Thermoplastic	Thermoplastic	Polybutylene Terephthalate (PBT)	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T
Insulation Color	Black	Green	Black	Black	Black	Black	Black
Current Rating	3A	5A	3A	3A	3A	3A per Contact	3A per Contact
Operating Temperature	-55°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-55°C ~ 85°C	-40°C ~ 105°C	-40°C ~ 105°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
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant	Not applicable	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts maintain active product status and UL94 V-0 flammability certification. Selection between substitutes depends on specific compliance and certification requirements:

For RoHS3 compliance applications, TE Connectivity 826942-6, Hirose Electric A1-12PA-2.54DSA(71), Harwin M20-9980645, and Harwin M20-9980646 are suitable. The TE Connectivity 87215-3 carries RoHS Compliant status. The TE Connectivity 87227-6 carries "Not applicable" RoHS status.

For extended temperature range applications requiring -65°C minimum operating temperature, TE Connectivity 826942-6, 87215-3, and 87227-6 support -65°C to 105°C operation. The 3M 2312-6221-TP, Hirose A1-12PA-2.54DSA(71), and Harwin M20 series operate at -55°C, -55°C, and -40°C minimum respectively.

For applications with temperature ceiling constraints below 105°C, the Hirose A1-12PA-2.54DSA(71) operates to 85°C maximum.

For higher current capacity, TE Connectivity 826942-6 supports 5A rating versus 3A for all other parts.

For REACH compliance status, TE Connectivity 87215-3 and 87227-6 carry "REACH Affected" designation. Hirose A1-12PA-2.54DSA(71) and Harwin M20 series carry "REACH Unaffected" status.

Frequently Asked Questions (FAQ)

Q: What determines if a part can substitute for the 3M 2312-6221-TP?

A: Core substitution criteria are fixed: 12-position, 2-row configuration; 0.100" (2.54mm) mating pitch and row spacing; male pin contacts; through-hole solder termination; push-pull fastening; and UL94 V-0 flammability rating. All listed substitutes meet these requirements.

Q: Can I use a substitute with a different contact finish?

A: Yes. The 3M 2312-6221-TP uses tin-lead plating. Substitutes with tin, gold, or other finishes are electrically and mechanically compatible. Contact finish selection depends on application requirements for corrosion resistance, solderability, or signal integrity.

Q: Are there differences in physical dimensions between these parts?

A: Yes. Contact length, overall contact length, and insulation height vary across substitutes. The 3M 2312-6221-TP has overall contact length of 0.538" (13.67mm). TE Connectivity 826942-6 measures 0.465" (11.81mm), while TE Connectivity 87215-3 and 87227-6 measure 0.533" (14.65mm). These dimensional differences may affect PCB layout and mating connector selection.

Q: What is the difference between the Harwin M20-9980645 and M20-9980646?

A: Both are identical except for contact finish. M20-9980645 features gold-plated mating contacts, while M20-9980646 features tin-plated mating contacts. Both support 3A current rating and -40°C to 105°C operation.

Q: Can I substitute the 3M 2312-6221-TP in a design requiring RoHS compliance?

A: The 3M 2312-6221-TP is RoHS non-compliant. For RoHS3 compliance, use TE Connectivity 826942-6, Hirose A1-12PA-2.54DSA(71), Harwin M20-9980645, or Harwin M20-9980646. For RoHS Compliant status, use TE Connectivity 87215-3.

Q: What packaging options are available?

A: The 3M 2312-6221-TP is supplied in bulk packaging. TE Connectivity 826942-6, 87215-3, and 87227-6 are bulk packaged. Hirose A1-12PA-2.54DSA(71) is tray packaged. Harwin M20-9980645 and M20-9980646 are bulk packaged.

Q: Are these connectors suitable for high-temperature applications?

A: The 3M 2312-6221-TP operates to 105°C maximum. TE Connectivity 826942-6, 87215-3, and 87227-6 also support 105°C maximum. Harwin M20 series supports 105°C maximum. The Hirose A1-12PA-2.54DSA(71) operates to 85°C maximum and is not suitable for applications requiring 105°C operation.

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