3M 2303-6211-TP Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 2303-6211-TP is a through-hole rectangular connector header with 3 positions at 0.100" (2.54mm) pitch. This unshrouded, male pin header is designed for board-to-board or cable connections with solder termination and push-pull fastening. The connector operates across -55°C to 105°C and carries a 3A current rating per contact. With 802 units in stock and active product status, this component serves general-purpose interconnection applications in electronics assembly.

Equivalent and substitute parts are identified based on matching critical electrical and mechanical parameters: 0.100" (2.54mm) pitch, 3-position configuration, male pin contact type, through-hole mounting, solder termination, push-pull fastening, square contact shape, UL94 V-0 flammability rating, and MSL 1 moisture sensitivity. Substitutes must maintain compatibility with the original connector footprint and electrical performance requirements.

Key Parameters

Parameter	3M 2303-6211-TP
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	3
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Shape	Square
Shrouding	Unshrouded
Material Flammability Rating	UL94 V-0
Operating Temperature	-55°C ~ 105°C
Current Rating	3A
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following critical parameters:

Mandatory Matching Parameters:

Pitch: 0.100" (2.54mm)
Number of Positions: 3
Number of Rows: 1
Contact Type: Male Pin
Mounting Type: Through Hole
Fastening Type: Push-Pull
Contact Shape: Square
Shrouding: Unshrouded
Material Flammability Rating: UL94 V-0
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations:

Connector Type: Header or Header with Breakaway capability
Termination: Solder or Kinked Pin with Solder
Contact Finish (Mating): Tin-Lead, Tin, or Gold
Contact Material: Copper Alloy, Brass, or Phosphor Bronze
Insulation Material: Thermoplastic (Glass Filled), Polyamide (PA), Nylon (Glass Filled), Polyester (Glass Filled), or Polybutylene Terephthalate (PBT)
Operating Temperature: Range must encompass or exceed -55°C to 105°C
Current Rating: Equal to or greater than 3A
Contact Length (Mating): Variations within 0.228" to 0.320" acceptable
Contact Length (Post): Variations within 0.098" to 0.150" acceptable
Insulation Height: Variations within 0.090" to 0.110" acceptable

The following 10 substitute parts meet these criteria and are functionally equivalent to the 3M 2303-6211-TP.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Pitch	Positions	Contact Type	Termination	Contact Finish (Mating)	Operating Temperature	Current Rating	RoHS Status	Inventory
2303-6211-TP	3M	2300	0.100" (2.54mm)	3	Male Pin	Solder	Tin-Lead	-55°C ~ 105°C	3A	RoHS non-compliant	802 Pcs
0022285034	Molex	KK254, 42375	0.100" (2.54mm)	3	Male Pin	Kinked Pin, Solder	Gold	Not specified	Not specified	ROHS3 Compliant	35936 Pcs
0901200123	Molex	C-Grid III 90120	0.100" (2.54mm)	3	Male Pin	Solder	Tin	-55°C ~ 125°C	Not specified	ROHS3 Compliant	30235 Pcs
0901200763	Molex	C-Grid III 90120	0.100" (2.54mm)	3	Male Pin	Solder	Gold	-55°C ~ 125°C	Not specified	ROHS3 Compliant	37719 Pcs
0901200923	Molex	C-Grid III 90120	0.100" (2.54mm)	3	Male Pin	Solder	Gold	-55°C ~ 125°C	Not specified	ROHS3 Compliant	1426 Pcs
68024-103HLF	Amphenol ICC (FCI)	BERGSTIK® II	0.100" (2.54mm)	3	Male Pin	Solder	Gold or Gold, GXT™	Not specified	5A	RoHS Compliant	1978 Pcs
77311-422C03LF	Amphenol ICC (FCI)	BERGSTIK®	0.100" (2.54mm)	3	Male Pin	Kinked Pin, Solder	Tin	-65°C ~ 125°C	3A per Contact	RoHS Compliant	1956 Pcs
77311-822-03LF	Amphenol ICC (FCI)	BERGSTIK®	0.100" (2.54mm)	3	Male Pin	Solder	Gold or Gold, GXT™	-65°C ~ 125°C	3A per Contact	RoHS Compliant	1800 Pcs
826629-3	TE Connectivity AMP Connectors	AMPMODU Mod II	0.100" (2.54mm)	3	Male Pin	Solder	Gold	-65°C ~ 105°C	5A	ROHS3 Compliant	3329 Pcs
826646-3	TE Connectivity AMP Connectors	AMPMODU Mod II	0.100" (2.54mm)	3	Male Pin	Solder	Gold	-65°C ~ 105°C	5A	RoHS Compliant	7174 Pcs
826647-3	TE Connectivity AMP Connectors	AMPMODU Mod II	0.100" (2.54mm)	3	Male Pin	Solder	Gold	-65°C ~ 105°C	5A	ROHS3 Compliant	1234 Pcs

Engineering Selection Recommendations

RoHS Compliance Consideration: The original 3M 2303-6211-TP is RoHS non-compliant. All listed substitutes except 68024-103HLF are ROHS3 Compliant or RoHS Compliant, making them suitable for applications requiring RoHS adherence. The 68024-103HLF is RoHS Compliant and represents an alternative for applications with RoHS requirements.

Temperature Range: The 3M 2303-6211-TP operates from -55°C to 105°C. Molex C-Grid III series (0901200123, 0901200763, 0901200923) and Amphenol ICC BERGSTIK® series (77311-422C03LF, 77311-822-03LF) extend the upper operating limit to 125°C, providing enhanced thermal margin. TE Connectivity AMPMODU Mod II series (826629-3, 826646-3, 826647-3) operates from -65°C to 105°C, extending the lower temperature range.

Current Rating: The original part carries 3A per contact. Amphenol ICC BERGSTIK® II (68024-103HLF) and TE Connectivity AMPMODU Mod II series (826629-3, 826646-3, 826647-3) provide 5A current capacity, offering increased electrical headroom for higher-power applications.

Contact Finish: Gold-plated mating contacts (0022285034, 0901200763, 0901200923, 68024-103HLF, 77311-822-03LF, 826629-3, 826646-3, 826647-3) provide superior corrosion resistance compared to the original tin-lead finish. Tin-finished alternatives (0901200123, 77311-422C03LF) maintain cost efficiency while meeting functional requirements.

Inventory Availability: Molex 0022285034 (35936 Pcs) and TE Connectivity 826646-3 (7174 Pcs) offer the highest stock levels for immediate procurement.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 3M 2303-6211-TP with any of these parts directly on my PCB?

A: Yes, all listed substitutes maintain the same 0.100" (2.54mm) pitch, 3-position configuration, and through-hole mounting footprint. Physical compatibility is assured. Verify that your mating connector accepts the substitute header's contact length and insulation height variations, which fall within 0.228" to 0.320" for mating contact length and 0.090" to 0.110" for insulation height.

Q: What is the difference between Kinked Pin and standard Solder termination?

A: Kinked Pin termination (0022285034, 77311-422C03LF) features a bent lead design that provides mechanical retention during PCB assembly, reducing solder joint stress. Standard Solder termination relies on solder flow alone. Both achieve equivalent electrical and mechanical performance when properly soldered.

Q: Are the Molex C-Grid III parts (0901200123, 0901200763, 0901200923) interchangeable with each other?

A: These three parts share identical pitch, position count, and mounting characteristics. The primary differences are contact finish (Tin vs. Gold) and contact finish thickness. They are mechanically and electrically interchangeable; selection depends on corrosion resistance requirements and cost considerations.

Q: Which substitute offers the best thermal performance?

A: Molex C-Grid III series and Amphenol ICC BERGSTIK® series extend the upper operating temperature to 125°C, compared to the original 105°C limit. TE Connectivity AMPMODU Mod II series extends the lower limit to -65°C. Selection depends on your specific thermal environment.

Q: Do I need to change my design if I switch from the 3M part to a Molex or TE Connectivity substitute?

A: No design changes are required. All substitutes maintain the same footprint, pitch, and electrical interface. Verify connector compatibility with your mating socket or cable assembly, as contact length and insulation height fall within acceptable ranges for standard 2.54mm pitch connectors.

Q: What is the significance of the different insulation materials (Thermoplastic, Polyamide, Polyester, PBT)?

A: All listed materials meet UL94 V-0 flammability requirements. Thermoplastic and Polyamide offer general-purpose performance. Polyester and PBT provide enhanced mechanical strength and temperature stability. Material selection does not affect electrical performance or footprint compatibility.

Q: Which substitute is best for RoHS-compliant applications?

A: All substitutes except 68024-103HLF are ROHS3 Compliant or RoHS Compliant. For strict RoHS compliance, select from Molex (0022285034, 0901200123, 0901200763, 0901200923) or TE Connectivity (826629-3, 826647-3) parts. The 68024-103HLF is RoHS Compliant and suitable for applications requiring RoHS adherence.

Q: Can I use the higher current-rated parts (5A) as direct replacements for the 3A original?

A: Yes. Higher current rating indicates greater electrical capacity and is fully backward compatible. The 5A-rated parts (68024-103HLF, 826629-3, 826646-3, 826647-3) function identically in 3A applications with no design modifications required.

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