3M 2309-6211-TP Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 2309-6211-TP is an active rectangular connector header designed for through-hole mounting applications. This 9-position, single-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 a temperature range of -55°C to 105°C. Equivalent substitute parts are available from multiple manufacturers to support design flexibility, inventory optimization, and supply chain continuity.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	9
Number of Rows	1
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Shrouding	Unshrouded
Operating Temperature	-55°C ~ 105°C
Current Rating	3A
Material Flammability Rating	UL94 V-0
Insulation Color	Black

Substitute Part Grouping Explanation

Substitution eligibility for the 3M 2309-6211-TP is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

Connector type: Header (with or without breakaway feature)
Contact type: Male Pin
Number of positions: 9
Number of rows: 1
Pitch - mating: 0.100" (2.54mm)
Mounting type: Through Hole
Termination: Solder
Fastening type: Push-Pull
Style: Board to Board or Cable
Shrouding: Unshrouded

Secondary Compatibility Parameters:

Operating temperature range must encompass or exceed -55°C to 105°C
Material flammability rating: UL94 V-0
Current rating: 3A or higher
Contact shape: Square

All five substitute parts meet these criteria and are classified as direct equivalents for the 3M 2309-6211-TP.

Parameter Comparison

Parameter	3M 2309-6211-TP	Molex 0901200129	Würth Elektronik 61300911121	TE Connectivity 826629-9	Hirose A2-9PA-2.54DSA(71)	Harwin M20-9990945
Manufacturer	3M	Molex	Würth Elektronik	TE Connectivity AMP Connectors	Hirose Electric Co Ltd	Harwin Inc.
Series	2300	C-Grid III 90120	WR-PHD	AMPMODU Mod II	A2	M20
Connector Type	Header	Header, Breakaway	Header	Header, Breakaway	Header	Header, Cuttable
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	9	9	9	9	9	9
Number of Rows	1	1	1	1	1	1
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)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Operating Temperature	-55°C ~ 105°C	-55°C ~ 125°C	-40°C ~ 105°C	-65°C ~ 105°C	-55°C ~ 85°C	-40°C ~ 105°C
Current Rating (Amps)	3A	Not specified	3A	5A	3A	3A per Contact
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Green	Black	Black
Contact Material	Copper Alloy	Brass	Copper Alloy	Brass	Brass	Brass
Contact Finish - Mating	Tin-Lead	Tin	Gold	Gold	Gold	Gold
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All five substitute parts maintain active product status and meet the core functional requirements of the 3M 2309-6211-TP. Selection should be based on compliance requirements and application constraints:

RoHS Compliance Consideration: The 3M 2309-6211-TP is RoHS non-compliant due to tin-lead plating. All substitute parts (Molex 0901200129, Würth Elektronik 61300911121, TE Connectivity 826629-9, Hirose A2-9PA-2.54DSA(71), and Harwin M20-9990945) are RoHS compliant, making them suitable for applications requiring RoHS adherence.

Temperature Range: The Hirose A2-9PA-2.54DSA(71) operates to 85°C maximum, which is below the 105°C upper limit of the original part. This part is suitable only for applications with maximum operating temperatures not exceeding 85°C. All other substitutes support the full -55°C to 105°C range or exceed it.

Contact Finish: The original part features tin-lead plating. Substitute parts employ either tin or gold plating. Gold-plated contacts (Würth Elektronik, TE Connectivity, Hirose, and Harwin) provide enhanced corrosion resistance and contact reliability compared to tin plating.

Current Rating: The TE Connectivity 826629-9 is rated for 5A, exceeding the 3A requirement. All other parts meet or match the 3A specification.

Frequently Asked Questions (FAQ)

Q: Can I use the Hirose A2-9PA-2.54DSA(71) in place of the 3M 2309-6211-TP in all applications?

A: The Hirose part is suitable only for applications where the maximum operating temperature does not exceed 85°C. The original 3M part and all other substitutes support operation to 105°C. Verify your application's thermal requirements before selection.

Q: What is the difference between the contact finishes used in these parts?

A: The 3M original uses tin-lead plating. Substitute parts use either tin (Molex) or gold (Würth Elektronik, TE Connectivity, Hirose, Harwin). Gold plating provides superior corrosion resistance and contact reliability, particularly in harsh environments or high-reliability applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All five substitute parts are RoHS compliant (ROHS3 or RoHS Compliant status). The original 3M 2309-6211-TP is RoHS non-compliant. If your application requires RoHS compliance, any of the five substitutes is acceptable.

Q: Do these connectors have different physical dimensions that might affect PCB layout?

A: While all parts share the same 0.100" (2.54mm) pitch and 9-position, single-row configuration, contact lengths and overall connector heights vary slightly between manufacturers. Verify specific contact length and insulation height specifications against your PCB design requirements before finalizing component selection.

Q: Which substitute part offers the highest current rating?

A: The TE Connectivity 826629-9 is rated for 5A, which exceeds the 3A requirement of the original part. All other substitutes are rated for 3A or have unspecified current ratings.

Q: Can I mix and match these connectors in the same assembly?

A: All parts are mechanically and electrically compatible due to matching pitch, position count, and contact type. However, for consistency and supply chain management, it is recommended to standardize on a single part number per assembly.

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