3M 2520-6002UG Equivalent & Substitute Parts

Part Overview

The 3M 2520-6002UG is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical orientation with 20 positions arranged in 2 rows at 0.100" (2.54mm) pitch, shrouded with 4-wall design, and male pin contacts with gold-plated mating surfaces. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for new designs and production continuity.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	20
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 or 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 eligibility is determined by strict adherence to the following core parameters:

Critical Matching Parameters:

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 20
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

All substitute parts listed meet these core electrical and mechanical parameters. Variations in contact material composition, insulation material type, contact finish thickness, and post finish material (Tin vs. Tin-Lead) are permissible within the scope of functional equivalence for this connector category.

Parameter Comparison

Parameter	2520-6002UG (3M)	N2520-6002-RB (3M)	D2520-6002-AR (3M)	0702462001 (Molex)	0702462004 (Molex)	0878342011 (Molex)	0878342019 (Molex)	0878342041 (Molex)	09185207329 (HARTING)	103308-5 (TE)	103309-5 (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	20	20	20	20	20	20	20	20	20	20	20
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	Press-Fit, 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	Gold	Gold or Gold-Palladium	Gold or Gold-Palladium
Contact Finish - Post	Tin-Lead	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin-Lead	Tin-Lead
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
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified	-65°C ~ 105°C	-65°C ~ 105°C
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	RoHS non-compliant

Engineering Selection Recommendations

Primary Recommendation: 3M N2520-6002-RB

The N2520-6002-RB is the direct active equivalent from 3M. It maintains identical electrical and mechanical specifications to the obsolete 2520-6002UG while achieving ROHS3 compliance. This part is the preferred choice for design continuity and supply chain consistency, with 14,120 units in stock.

Secondary Recommendation: 3M D2520-6002-AR

The D2520-6002-AR from the D2500 series provides an alternative within the 3M product family. It achieves RoHS compliance and maintains core connector specifications. This option is suitable when the D2500 series integration is preferred, though inventory is more limited at 916 units.

Cross-Manufacturer Alternatives: Molex C-Grid Series

The Molex C-Grid 70246 series (0702462001, 0702462004) and C-Grid 87834 series (0878342011, 0878342019, 0878342041) provide functionally equivalent connectors with ROHS3 compliance. These parts are suitable for applications where multi-source qualification is required. Inventory availability ranges from 1,066 to 14,013 units across variants.

Cross-Manufacturer Alternative: HARTING SEK Series

The HARTING 09185207329 from the SEK series offers ROHS3 compliance and supports both press-fit and solder termination options. This part is suitable for applications requiring flexible assembly methods, with 655 units in stock.

Cross-Manufacturer Alternative: TE Connectivity AMP-Latch Series

The TE Connectivity parts 103308-5 and 103309-5 from the AMP-Latch series provide functional equivalence with extended operating temperature range (-65°C ~ 105°C). These parts maintain RoHS non-compliant status consistent with the original 2520-6002UG, making them suitable for legacy system replacements where RoHS compliance is not mandated.

Frequently Asked Questions (FAQ)

Q: Can the 3M N2520-6002-RB directly replace the obsolete 2520-6002UG?

A: Yes. The N2520-6002-RB maintains identical core electrical and mechanical specifications including 20-position, 2-row configuration at 0.100" pitch, shrouded 4-wall design, through-hole solder termination, and push-pull fastening. The primary difference is RoHS3 compliance status and contact finish post material (Tin vs. Tin-Lead), which do not affect functional compatibility.

Q: What is the difference between Tin and Tin-Lead post finishes?

A: Both finishes provide equivalent solder joint reliability for through-hole applications. Tin-Lead finishes (original 2520-6002UG, TE parts 103308-5 and 103309-5) contain lead and are RoHS non-compliant. Tin finishes (N2520-6002-RB, Molex, HARTING parts) are lead-free and RoHS3 compliant. Selection depends on regulatory requirements and legacy system constraints.

Q: Are Molex and HARTING connectors mechanically compatible with 3M connector housings?

A: Molex C-Grid and HARTING SEK series connectors are designed to the same 0.100" (2.54mm) pitch standard and share identical shrouded 4-wall geometry. However, cross-manufacturer mating compatibility depends on specific housing designs and should be verified through mechanical drawings and test mating before production implementation.

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

A: Contact finish thickness (measured in microinches) affects durability and wear resistance during mating cycles. The original 2520-6002UG specifies 15.0µin (0.38µm) mating finish. Substitute parts range from 5.0µin to 30.0µin. All values within this range are acceptable for standard connector applications; thicker finishes provide extended contact life in high-cycle mating environments.

Q: Which substitute part offers the best inventory availability?

A: The 3M N2520-6002-RB and Molex 0878342019 offer the highest inventory levels at 14,120 and 14,013 units respectively, ensuring supply continuity for production requirements.

Q: Are there compliance differences between substitute options?

A: Yes. The 3M N2520-6002-RB, 3M D2520-6002-AR, Molex parts, and HARTING part are ROHS3 compliant. The TE Connectivity parts (103308-5, 103309-5) maintain RoHS non-compliant status matching the original 2520-6002UG. Selection depends on end-product regulatory requirements and target markets.

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