3M N2540-6002-UG Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M N2540-6002-UG is a shrouded rectangular connector header with 40 positions, 2.54mm pitch, designed for through-hole mounting with solder termination. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The connector features a 2-row configuration with push-pull fastening and gold-plated mating contacts suitable for board-to-board or cable interconnection in industrial and telecommunications applications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	40
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
Material Flammability Rating	UL94 V-0
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Operating Temperature	-55°C ~ 105°C

Substitute Part Grouping Explanation

Substitution of the N2540-6002-UG is determined by strict equivalence in the following critical parameters:

40-position, 2-row configuration with 0.100" (2.54mm) mating pitch
0.100" (2.54mm) row spacing
Shrouded 4-wall design with push-pull fastening
Through-hole solder termination
Male pin contact type
Gold-plated mating contact surface
UL94 V-0 flammability rating
MSL 1 (Unlimited) moisture sensitivity

Substitute parts are grouped by manufacturer and series. Variations in contact material (copper alloy vs. brass vs. phosphor bronze), post finish composition (tin vs. tin-lead), insulation material (PCT vs. polyamide vs. PBT), and contact finish thickness do not preclude substitution when all critical parameters remain constant. RoHS compliance status and product lifecycle status (active vs. obsolete) are documented but do not restrict electrical or mechanical compatibility.

Parameter Comparison

Parameter	N2540-6002-UG (3M)	008383040000010 (KYOCERA AVX)	0702464001 (Molex)	0702464002 (Molex)	0702464004 (Molex)	0878344011 (Molex)	0878344041 (Molex)	103308-8 (TE)	103309-8 (TE)	5103308-8 (TE)	5103309-8 (TE)
Connector Type	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	40	40	40	40	40	40	40	40	40	40	40
Number of Rows	2	2	2	2	2	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)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - 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)	0.100" (2.54mm)
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	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	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	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	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold or Gold-Palladium
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	UL94 V-0	UL94 V-0
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Operating Temperature	-55°C ~ 105°C	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts maintain mechanical and electrical compatibility with the N2540-6002-UG based on identical critical parameters: 40-position, 2-row configuration, 2.54mm pitch, shrouded 4-wall design, through-hole solder termination, and push-pull fastening.

For applications requiring RoHS3 compliance, select from the following active-status parts: 008383040000010 (KYOCERA AVX), 0702464001, 0702464002, 0702464004 (Molex), 0878344011, 0878344041 (Molex), 5103308-8, or 5103309-8 (TE Connectivity).

For applications with no RoHS compliance requirement, 103308-8 and 103309-8 (TE Connectivity) remain functionally equivalent, though these parts retain RoHS non-compliant status.

TE Connectivity parts 5103308-8 and 5103309-8 offer the advantage of both active product status and ROHS3 compliance, with operating temperature range extended to -65°C ~ 105°C compared to the original -55°C ~ 105°C specification.

Molex C-Grid 70246 series (0702464001, 0702464002, 0702464004) and C-Grid 87834 series (0878344011, 0878344041) provide high inventory availability and active product status with ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can the N2540-6002-UG be directly replaced with any of these substitute parts?

A: Yes. All listed substitute parts are mechanically and electrically equivalent based on identical 40-position, 2-row configuration with 2.54mm pitch, shrouded 4-wall design, through-hole solder termination, and push-pull fastening. Physical board layout compatibility is maintained across all substitutes.

Q: What is the difference between the Molex 0702464001, 0702464002, and 0702464004 parts?

A: These three parts are from the same Molex C-Grid 70246 series and share identical mechanical and electrical specifications. The primary differences are packaging format (Tray vs. Bulk) and contact finish thickness on the mating surface (15.0µin, 30.0µin, and 5.00µin respectively). All three are functionally interchangeable.

Q: Are the TE Connectivity 103308-8 and 5103308-8 parts interchangeable?

A: Yes. Both parts are mechanically and electrically identical. The primary difference is RoHS compliance status: 103308-8 is RoHS non-compliant, while 5103308-8 is ROHS3 compliant. For new designs, 5103308-8 is recommended.

Q: What is the difference between TE Connectivity parts with and without the "5" prefix?

A: TE Connectivity parts prefixed with "5" (5103308-8, 5103309-8) are ROHS3 compliant versions of their non-prefixed counterparts (103308-8, 103309-8). All other specifications remain identical.

Q: Does the KYOCERA AVX 008383040000010 differ significantly from the Molex alternatives?

A: The KYOCERA AVX part maintains all critical mechanical and electrical parameters. Differences include insulation material (Polyamide/Nylon vs. PBT Glass Filled in Molex parts), insulation color (Beige vs. Black), and contact material (Brass vs. Phosphor Bronze). These material variations do not affect functional compatibility.

Q: What packaging options are available for these substitute parts?

A: Packaging formats include Tray (008383040000010, 0702464001, 0702464004, 0878344011, 0878344041), Bulk (0702464002, 103308-8), and Tube (103309-8, 5103308-8, 5103309-8). Packaging selection does not affect connector performance and is determined by procurement and handling requirements.

Q: Are there any temperature rating differences between substitutes?

A: The original N2540-6002-UG specifies -55°C ~ 105°C. TE Connectivity parts (103308-8, 103309-8, 5103308-8, 5103309-8) extend the lower limit to -65°C. Molex and KYOCERA AVX parts do not specify operating temperature ranges in the provided data. For applications requiring -65°C operation, TE Connectivity parts are suitable.

Q: Which substitute offers the best combination of availability and compliance?

A: TE Connectivity 5103308-8 and 5103309-8 combine active product status, ROHS3 compliance, and extended temperature range (-65°C ~ 105°C). Molex C-Grid series (0702464001, 0702464002, 0702464004) offer high inventory levels with ROHS3 compliance and active status.

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