3M N2526-6002-UG Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M N2526-6002-UG is a shrouded rectangular connector header with 26 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This through-hole component features male pins with gold-plated mating contacts and tin-lead plated posts, designed for board-to-board or cable connections with push-pull fastening. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	26
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Shrouding	Shrouded - 4 Wall
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Contact Finish - Post	Tin-Lead
Operating Temperature	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0
Current Rating	1.75A
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the N2526-6002-UG is determined by strict alignment of the following critical parameters:

Connector type: Header with male pins
Position count and row configuration: 26 positions in 2 rows
Mating pitch and row spacing: 0.100" (2.54mm)
Shrouding: 4-wall shrouded design
Mounting: Through-hole solder termination
Fastening: Push-pull mechanism
Contact finish: Gold mating surface with tin or tin-lead post finish
Flammability: UL94 V-0 rating
Keying: Keying slot feature

Substitute parts are grouped into two categories based on product status and regulatory compliance. Active parts with RoHS3 compliance represent the primary substitution path. Secondary options include active parts with RoHS non-compliance or alternative contact finish specifications that maintain electrical and mechanical compatibility.

Parameter Comparison

Parameter	N2526-6002-UG (3M)	0702462601 (Molex)	0878342611 (Molex)	103308-6 (TE)	5103308-6 (TE)	52601-S26-4LF (Amphenol)
Connector Type	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Positions	26	26	26	26	26	26
Rows	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)
Row Spacing	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
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
Contact Length - Mating	0.243" (6.17mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.230" (5.84mm)
Contact Length - Post	0.112" (2.84mm)	0.135" (3.43mm)	0.135" (3.43mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.120" (3.05mm)
Insulation Height	0.390" (9.91mm)	0.365" (9.27mm)	0.365" (9.27mm)	0.388" (9.86mm)	0.388" (9.86mm)	0.365" (9.27mm)
Contact Finish - Mating	Gold	Gold	Gold	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold or Gold, GXT™
Contact Finish - Post	Tin-Lead	Tin	Tin	Tin-Lead	Tin	Tin
Contact Material	Copper Alloy	Phosphor Bronze	Copper Alloy	Brass	Brass	Phosphor Bronze
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	Beige	Black	Black	Black
Operating Temperature	-55°C ~ 105°C	Not specified	Not specified	-65°C ~ 105°C	-65°C ~ 105°C	Not specified
Current Rating	1.75A	Not specified	Not specified	1A per Contact	1A per Contact	Not specified
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS non-compliant	RoHS3 Compliant	RoHS Compliant

Engineering Selection Recommendations

Primary Substitutes (RoHS3 Compliant, Active Status):

The TE Connectivity 5103308-6 and 5103309-6 (AMP-Latch series, tube packaging) represent the preferred substitution path. Both parts are RoHS3 compliant, currently active in production, and maintain full mechanical and electrical compatibility with the N2526-6002-UG. The 5103308-6 features 15.0µin gold plating on mating contacts with tin post finish, while 5103309-6 provides enhanced 30.0µin gold plating. Operating temperature range extends to -65°C, exceeding the original specification.

The Molex 0702462601 (C-Grid 70246 series) and 0878342611 (C-Grid 87834 series) are alternative RoHS3 compliant options with active product status. Both maintain the required 26-position, 2-row configuration with 0.100" pitch and 4-wall shrouding. The 0702462601 uses phosphor bronze contacts with tin finish, while 0878342611 employs copper alloy contacts with board guide feature and beige insulation.

Secondary Substitutes (RoHS Compliant, Active Status):

The Amphenol ICC 52601-S26-4LF and 52601-G26-4LF (Quickie series) are RoHS compliant active parts with tray packaging. These connectors feature phosphor bronze contacts with gold mating finish and tin post finish. The 52601-S26-4LF provides 15.0µin gold plating, while 52601-G26-4LF offers 30.0µin plating. Mating contact length is 0.230" (5.84mm), slightly shorter than the original specification.

Legacy Compatibility (RoHS Non-Compliant):

The TE Connectivity 103308-6 and 103309-6 (AMP-Latch series, bulk packaging) maintain RoHS non-compliant status matching the original part. These are suitable for applications where legacy compliance status is required or where RoHS exemptions apply. Both feature brass contacts with gold or gold-palladium mating finish and tin-lead post finish, with operating temperature range of -65°C to 105°C.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0702462601 directly replace the 3M N2526-6002-UG?

A: Yes. Both connectors share identical mating pitch (0.100"), row spacing (0.100"), position count (26 in 2 rows), shrouding configuration (4-wall), mounting type (through-hole), and fastening mechanism (push-pull). The Molex part is RoHS3 compliant and currently active, addressing the obsolescence of the original 3M component. Minor dimensional variations in contact length and insulation height fall within acceptable mechanical tolerances for standard board-to-board and cable applications.

Q: What is the difference between the TE Connectivity 5103308-6 and 5103309-6?

A: Both parts are mechanically and electrically identical with the following exception: the 5103309-6 features 30.0µin gold plating on mating contacts, while the 5103308-6 provides 15.0µin plating. The enhanced plating thickness in the 5103309-6 offers increased contact durability and wear resistance for high-cycle mating applications. Both are RoHS3 compliant, tube-packaged, and rated for 1A per contact at -65°C to 105°C operating temperature.

Q: Are there packaging differences between substitute options?

A: Yes. TE Connectivity parts (5103308-6, 5103309-6, 5104338-6) are supplied in tube packaging. Molex parts (0702462601, 0878342611) are supplied in bulk packaging. Amphenol ICC parts (52601-S26-4LF, 52601-G26-4LF, 52601-S26-6LF) are supplied in tray packaging. Packaging selection depends on production volume requirements and inventory management practices. Electrical and mechanical performance is independent of packaging format.

Q: What is the significance of the 52601-S26-6LF variant?

A: The 52601-S26-6LF is functionally equivalent to the 52601-S26-4LF with one specification difference: the post contact length is 0.150" (3.81mm) instead of 0.120" (3.05mm). This longer post length accommodates applications requiring deeper board penetration or thicker PCB assemblies. All other parameters, including mating pitch, position count, shrouding, and contact finish, remain identical.

Q: How do contact material differences affect substitution?

A: The N2526-6002-UG uses copper alloy contacts, while substitutes employ phosphor bronze, brass, or copper alloy materials. All materials are acceptable for standard connector applications and maintain equivalent electrical conductivity and mechanical strength. Contact material selection does not affect compatibility or performance in typical board-to-board or cable connection scenarios.

Q: What is the impact of tin versus tin-lead post finish?

A: The original N2526-6002-UG features tin-lead post finish. Most active substitutes use tin-only finish due to RoHS compliance requirements. Tin finish provides equivalent solder joint reliability and mechanical strength. The TE Connectivity 103308-6 and 103309-6 retain tin-lead finish for legacy applications where RoHS exemptions apply. Finish selection does not affect connector performance in standard soldering processes.

Q: Are there operating temperature considerations for substitution?

A: The N2526-6002-UG is rated -55°C to 105°C. The TE Connectivity AMP-Latch series (103308-6, 103309-6, 5103308-6, 5103309-6, 5104338-6) extends the lower temperature limit to -65°C, providing enhanced cold-temperature performance. Molex and Amphenol ICC parts do not specify operating temperature ranges. For applications operating below -55°C, TE Connectivity substitutes are recommended.

Q: What is the keying slot feature and is it present on all substitutes?

A: The keying slot is a mechanical feature that prevents incorrect mating orientation between header and receptacle connectors. All listed substitutes include keying slot functionality, ensuring proper connector alignment and preventing damage from reversed insertion. This feature is standard across all 26-position 0.100" pitch rectangular connector headers in this category.

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