Amphenol ICC 861400041YO2 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 861400041YO2 is a through-hole rectangular connector header with 4 positions at 0.100" (2.54mm) pitch, designed for board-to-board applications. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The connector features male pins with gold-plated mating contacts, solder termination, and push-pull fastening. Current inventory of 1084 pieces is available as new original stock.

Key Parameters

Parameter	Value
Manufacturer Part Number	861400041YO2
Manufacturer	Amphenol ICC (FCI)
Category	Rectangular Connectors
Series	BERGSTIK®
Connector Type	Header, Breakaway
Contact Type	Male Pin
Number of Positions	4
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold or Gold, GXT™
Current Rating	3A
Voltage Rating	1000V
Material Flammability Rating	UL94 V-0
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 861400041YO2 is determined by the following critical parameters:

Primary Matching Criteria:

Number of Positions: 4
Pitch - Mating: 0.100" (2.54mm)
Connector Type: Header
Contact Type: Male Pin
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Material Flammability Rating: UL94 V-0

Secondary Compatibility Factors:

Current Rating: minimum 3A
Voltage Rating: minimum 1000V (where specified)
Contact Finish: Gold or equivalent conductive finish
Insulation Material: Thermoplastic or equivalent

Substitute parts are grouped into two categories: direct Amphenol ICC variants with active product status, and cross-manufacturer alternatives from 3M, TE Connectivity, and Mill-Max Manufacturing that maintain electrical and mechanical compatibility within the specified parameters.

Parameter Comparison

Parameter	861400041YO2 (Main)	861400041YO2LF	2304-6211-TG (3M)	826629-4 (TE)	929647-01-04-I (3M)
Manufacturer	Amphenol ICC	Amphenol ICC	3M	TE Connectivity	3M
Product Status	Obsolete	Active	Active	Active	Active
Number of Positions	4	4	4	4	4
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Connector Type	Header, Breakaway	Header, Breakaway	Header	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold	Gold	Gold
Current Rating (Amps)	3A	3A	3A	5A	2.5A
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Operating Temperature	Not specified	-55°C ~ 125°C	-55°C ~ 105°C	-65°C ~ 105°C	-40°C ~ 105°C
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Recommendation: 861400041YO2LF

The 861400041YO2LF is the direct successor to the obsolete 861400041YO2, manufactured by Amphenol ICC within the same BERGSTIK® series. This part maintains identical electrical and mechanical specifications while offering active product status and RoHS compliance. Operating temperature range extends to -55°C ~ 125°C, providing broader environmental capability. This is the preferred choice for direct replacement in new designs and production continuity.

Secondary Recommendations:

3M 2304-6211-TG (Active status, RoHS non-compliant) provides cross-manufacturer compatibility with identical pitch, position count, and current rating. The 3M 2300 series offers proven reliability in board-to-board applications with equivalent contact geometry and solder termination.

TE Connectivity 826629-4 (ROHS3 Compliant, Active status) from the AMPMODU Mod II series supports higher current capacity at 5A and extended operating temperature range to -65°C. This option suits applications requiring enhanced thermal performance and regulatory compliance.

3M 929647-01-04-I (RoHS Compliant, Active status) operates within -40°C ~ 105°C range with 2.5A current rating. This variant is suitable for standard industrial applications where the lower current rating remains adequate.

For applications requiring RoHS compliance and active product support, 861400041YO2LF, 826629-4, or 929647-01-04-I are recommended. For legacy system maintenance where RoHS compliance is not required, 2304-6211-TG provides cost-effective cross-manufacturer compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use 861400041YO2LF as a direct replacement for 861400041YO2?

A: Yes. The 861400041YO2LF is the active production equivalent with identical electrical and mechanical specifications. The primary differences are active product status and RoHS compliance. Both parts share the same 4-position, 2.54mm pitch header configuration, male pin contact type, and solder termination.

Q: What is the difference between the Amphenol ICC and 3M variants?

A: Both manufacturers produce 4-position, 2.54mm pitch headers with equivalent electrical ratings and UL94 V-0 flammability compliance. Differences exist in contact length dimensions, insulation material composition, and operating temperature ranges. The 3M 2300 series uses glass-filled thermoplastic insulation, while Amphenol ICC uses standard thermoplastic. Contact geometry and mating force characteristics may vary slightly between manufacturers.

Q: Does the TE Connectivity 826629-4 offer advantages over the Amphenol ICC alternatives?

A: The 826629-4 provides higher current capacity at 5A versus 3A for the Amphenol ICC parts, and extends the operating temperature range to -65°C. It also carries ROHS3 compliance. These advantages are beneficial for high-current or extreme-temperature applications. For standard applications within the 3A current and -55°C ~ 125°C temperature envelope, the Amphenol ICC 861400041YO2LF remains the direct equivalent.

Q: Are there packaging differences between these parts?

A: Yes. The 861400041YO2LF is supplied in bulk packaging, while the original 861400041YO2 packaging is not specified. The 3M 2304-6211-TG is supplied in bulk. The Mill-Max 334-10-104-00-010000 is supplied in tube packaging. Packaging differences do not affect electrical or mechanical compatibility; they relate only to order quantity and handling.

Q: What is the significance of the contact finish thickness specifications?

A: Contact finish thickness affects durability and mating cycle life. The 861400041YO2 specifies 8.00µin (0.203µm) gold thickness on mating contacts. The 861400041YO2LF maintains this specification. The 3M 2304-6211-TG provides 10.0µin (0.25µm) gold thickness, offering slightly enhanced wear resistance. The TE Connectivity 826629-4 specifies 3.90µin (0.099µm), which is thinner but remains within acceptable limits for standard applications.

Q: Can I mix different manufacturers' parts in the same assembly?

A: Yes, provided all parts meet the specified electrical and mechanical parameters. All listed substitutes maintain 4-position, 2.54mm pitch, male pin configuration, and solder termination. However, verify mechanical fit with mating connectors, as contact length and insulation height may vary slightly between manufacturers. Test assembly compatibility before full production implementation.

Q: Which substitute offers the best RoHS compliance?

A: The 861400041YO2LF, 826629-4, and 929647-01-04-I all offer RoHS compliance. The 826629-4 carries ROHS3 designation, representing the most current compliance standard. The 861400041YO2LF and 929647-01-04-I carry standard RoHS compliance. For applications requiring the highest regulatory alignment, the 826629-4 is recommended.

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