Amphenol ICC 861400041YO2LF Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 861400041YO2LF is a through-hole rectangular connector header in the BERGSTIK® series, designed for board-to-board applications. This 4-position, 0.100" (2.54mm) pitch header features male pins with gold-plated mating contacts and solder termination. The connector is rated for 3A at 1000V and operates across -55°C to 125°C. With active product status and RoHS compliance, this component is widely used in standard PCB interconnect applications. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and operational parameters.

Key Parameters

Parameter	Specification
Connector Type	Header, Breakaway
Contact Type	Male Pin
Number of Positions	4
Pitch - Mating	0.100" (2.54mm)
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold or Gold, GXT™
Current Rating	3A
Voltage Rating	1000V
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Pitch and Position Compatibility: All substitute parts must maintain 0.100" (2.54mm) pitch with 4 positions in a single row to ensure PCB footprint compatibility.
Contact Type and Termination: Male pin headers with solder termination are required for direct replacement in board-to-board applications.
Mounting Configuration: Through-hole mounting with push-pull fastening ensures mechanical interchangeability.
Electrical Ratings: Current rating of 2.5A or higher and voltage rating of 1000V or unspecified (indicating standard industrial voltage) are acceptable.
Operating Temperature Range: Parts operating within or overlapping the -55°C to 125°C range are suitable for equivalent applications.
Compliance Status: RoHS compliance and active product status are preferred for new designs; non-compliant parts are noted for legacy applications only.

Substitute parts are grouped by their ability to meet these core parameters while maintaining functional equivalence in standard PCB interconnect applications.

Parameter Comparison

Parameter	861400041YO2LF (Main)	334-10-104-00-010000	826629-4	929400-01-04-RK	929647-01-04-I	929647-09-04-I	929834-01-04-RK	929834-04-04-RK	HTSW-104-24-F-S	MTSW-104-08-T-S-290
Manufacturer	Amphenol ICC	Mill-Max	TE Connectivity	3M	3M	3M	3M	3M	Samtec	Samtec
Connector Type	Header, Breakaway	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header	Header, Cuttable
Contact Type	Male Pin	Post, Extended	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	4	4	4	4	4	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)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	1	1	1	1	1	1	1	1	1	1
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	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
Contact Finish - Mating	Gold or Gold, GXT™	Gold	Gold	Tin	Gold	Gold	Tin-Lead	Tin	Gold	Tin
Current Rating (Amps)	3A	-	5A	2.5A	2.5A	2.5A	2.5A	2.5A	Varies by Wire Gauge	3A
Voltage Rating	1000V	-	-	-	-	-	-	-	-	-
Operating Temperature	-55°C ~ 125°C	-	-65°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-55°C ~ 125°C	-55°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	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Equivalents (Highest Compatibility)

The following parts provide the closest functional equivalence to the 861400041YO2LF:

826629-4 (TE Connectivity AMPMODU Mod II): Matches connector type, contact configuration, and push-pull fastening. Exceeds current rating at 5A. Operating temperature range -65°C to 105°C covers the lower end of the main part's range. RoHS3 compliant with active product status.
HTSW-104-24-F-S (Samtec HTSW): Identical operating temperature range (-55°C to 125°C) and gold mating contact finish. Phosphor bronze contact material with UL94 V-0 rating. ROHS3 compliant. Suitable for applications requiring extended temperature performance.
MTSW-104-08-T-S-290 (Samtec Flex Stack, MTSW): Matches 3A current rating and overlapping temperature range (-55°C to 105°C). Cuttable header design provides flexibility. ROHS3 compliant with active product status.

Secondary Equivalents (Acceptable with Parameter Variance)

929834-01-04-RK (3M 929 Series): Tin mating contact finish differs from gold specification. RoHS compliant with 2.5A current rating. Operating temperature -40°C to 105°C is narrower than main part. Suitable for standard industrial applications.
929647-01-04-I (3M 929 Series): Gold mating and post contact finish. RoHS compliant. 2.5A current rating. Operating temperature -40°C to 105°C. Polybutylene terephthalate insulation material.
929647-09-04-I (3M 929 Series): Extended post length (0.145" vs. 0.110"). Gold contact finish. RoHS compliant. 2.5A current rating. Suitable for applications requiring longer post engagement.

Limited Compatibility (Specialized Applications)

929400-01-04-RK (3M 929 Series): Tin mating contact finish. 2.5A current rating. Operating temperature -40°C to 105°C. RoHS compliant. Suitable for non-critical applications where gold finish is not required.
334-10-104-00-010000 (Mill-Max 334): Extended post design with gold finish. Contact type differs (post vs. male pin). Tube packaging. Suitable for applications requiring post-style connectors.
929834-01-04 (3M 929 Series): RoHS non-compliant with tin-lead finish. REACH affected. Suitable only for legacy applications where RoHS compliance is not required.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a lower current rating than the main part?

A: The 861400041YO2LF is rated for 3A. Substitute parts rated at 2.5A are acceptable if the application current does not exceed 2.5A. Parts with higher current ratings (5A) provide additional margin. Current rating selection must match or exceed actual circuit requirements.

Q: What is the significance of contact finish differences (gold vs. tin)?

A: Gold-plated contacts provide superior corrosion resistance and lower contact resistance, particularly in low-signal applications. Tin-plated contacts are acceptable for standard industrial applications but may exhibit higher contact resistance over time. Gold finish is preferred for critical signal integrity applications.

Q: Are parts with narrower operating temperature ranges suitable replacements?

A: The main part operates -55°C to 125°C. Substitute parts with -40°C to 105°C ranges are acceptable if the application operates within this narrower window. For applications requiring the full -55°C to 125°C range, only HTSW-104-24-F-S and MTSW-104-08-T-S-290 maintain this specification.

Q: What does RoHS3 compliance mean compared to RoHS compliance?

A: RoHS3 (Directive 2011/65/EU as amended) is the current regulatory standard. RoHS compliant parts meet the original directive. Both are acceptable; RoHS3 represents the latest compliance standard. Non-compliant parts (929834-01-04) are restricted in new designs for regulated markets.

Q: Can I substitute a cuttable header for a standard breakaway header?

A: Yes. The MTSW-104-08-T-S-290 cuttable header provides the same electrical and mechanical interface. The cuttable design offers additional flexibility for custom configurations while maintaining full compatibility with standard 2.54mm pitch applications.

Q: How do I determine if a substitute part is compatible with my PCB layout?

A: Compatibility is ensured by matching pitch (0.100" / 2.54mm), number of positions (4), number of rows (1), and mounting type (through hole). All listed substitute parts meet these criteria. Verify contact length and insulation height if space constraints exist on your PCB.

Q: Are there packaging differences I should consider?

A: The main part is supplied in bulk packaging. Mill-Max 334-10-104-00-010000 is supplied in tube packaging. Bulk packaging is standard for high-volume applications; tube packaging is suitable for lower-volume or kit-based applications. Packaging does not affect electrical or mechanical performance.

Q: What is the difference between male pin and post contact types?

A: Male pin contacts are the standard header configuration used in board-to-board applications. Post contacts (334-10-104-00-010000) are extended pins used in specific applications. For direct replacement of the 861400041YO2LF, male pin headers are required.

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