3M 2520-6002UB Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 2520-6002UB is a through-hole rectangular connector header with 20 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This connector features shrouded 4-wall design with male pins, gold-plated mating contacts, and tin-lead post finish. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Active alternatives from 3M and other manufacturers provide compatible electrical and mechanical interfaces while offering improved compliance status and availability.

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-Lead
Operating Temperature	-55°C ~ 105°C
Current Rating	1.75A
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following core parameters: connector type (header), contact type (male pin), number of positions (20), number of rows (2), mating pitch (0.100"/2.54mm), row spacing (0.100"/2.54mm), shrouding (shrouded 4-wall), mounting type (through hole), termination (solder), and fastening type (push-pull). All substitute parts listed meet these electrical and mechanical requirements.

Substitutes are grouped into two categories:

Direct 3M Substitutes: Parts N2520-6002-RB and D2520-6002-AR maintain the same connector family and core specifications while offering improved compliance and availability. N2520-6002-RB is the direct active replacement with identical electrical characteristics. D2520-6002-AR represents the manufacturer-recommended upgrade path with enhanced RoHS compliance.

Cross-Manufacturer Alternatives: Molex (0702462001, 0702462004, 0878342011, 0878342019, 0878342041), HARTING (09185207329), and TE Connectivity (103309-5, 5103308-5) connectors provide functional equivalence through matching pitch, position count, shrouding, and push-pull fastening. These parts accommodate the same mating interface and PCB footprint while offering alternative sourcing and compliance options.

Parameter Comparison

Parameter	2520-6002UB (Main)	N2520-6002-RB	D2520-6002-AR	0702462001	0702462004	0878342011	0878342019	0878342041	09185207329	103309-5	5103308-5
Manufacturer	3M	3M	3M	Molex	Molex	Molex	Molex	Molex	HARTING	TE Connectivity	TE Connectivity
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
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
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
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant
REACH Status	REACH Affected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Affected	REACH Unaffected
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Recommendation: 3M N2520-6002-RB

The N2520-6002-RB is the direct active replacement for the obsolete 2520-6002UB. This part maintains identical electrical and mechanical specifications while achieving ROHS3 compliance and REACH unaffected status. With 14,120 units in stock, it provides immediate availability and eliminates compliance concerns associated with the original part. The transition from tin-lead to tin post finish aligns with modern manufacturing standards.

Secondary Recommendation: 3M D2520-6002-AR

The D2520-6002-AR represents the manufacturer-recommended upgrade path within the 3M connector portfolio. This part achieves full RoHS compliance and REACH unaffected status. The D2500 series designation indicates an enhanced design iteration. With 916 units available, this option suits applications requiring the highest compliance assurance.

Cross-Manufacturer Alternatives

Molex C-Grid 70246 series (0702462001, 0702462004) and C-Grid 87834 series (0878342011, 0878342019, 0878342041) provide functionally equivalent interfaces with ROHS3 compliance and REACH unaffected status. These options support multi-source strategies and offer substantial inventory availability. The 0878342019 variant provides the highest stock level at 14,013 units.

TE Connectivity AMP-Latch series (103309-5, 5103308-5) offers compatible mechanical and electrical interfaces. The 5103308-5 achieves ROHS3 compliance and REACH unaffected status, making it suitable for regulated applications. The 103309-5 maintains RoHS non-compliant status similar to the original part.

HARTING SEK series (09185207329) provides an alternative with press-fit and solder termination options, supporting flexible assembly approaches. This part achieves ROHS3 compliance and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can N2520-6002-RB directly replace 2520-6002UB in existing designs?

A: Yes. The N2520-6002-RB maintains identical pitch (0.100"/2.54mm), position count (20), row configuration (2 rows), shrouding (4-wall), and push-pull fastening. The PCB footprint and mating interface are identical. The post finish change from tin-lead to tin does not affect electrical performance or mechanical compatibility.

Q: What is the difference between 3M N2520-6002-RB and D2520-6002-AR?

A: Both parts provide direct functional replacement. N2520-6002-RB is the direct active equivalent with identical specifications. D2520-6002-AR represents an enhanced design variant within the D2500 series with improved compliance status. Selection depends on compliance requirements and design flexibility.

Q: Are Molex and TE Connectivity alternatives mechanically compatible?

A: Yes. All listed alternatives maintain the core specifications: 0.100" (2.54mm) pitch, 20 positions in 2 rows, shrouded 4-wall design, through-hole mounting, and push-pull fastening. These parameters ensure PCB footprint compatibility and mating interface alignment with the original 2520-6002UB.

Q: How do contact finish differences affect performance?

A: The original 2520-6002UB uses tin-lead post finish. Most active substitutes use tin post finish. Both finishes provide equivalent electrical conductivity and solder joint reliability. Tin post finish aligns with RoHS compliance requirements and modern manufacturing standards.

Q: Which substitute offers the best compliance profile?

A: N2520-6002-RB, D2520-6002-AR, and all Molex variants (0702462001, 0702462004, 0878342011, 0878342019, 0878342041) achieve ROHS3 compliance and REACH unaffected status. These parts eliminate regulatory concerns associated with the RoHS non-compliant, REACH-affected original part.

Q: What packaging options are available?

A: N2520-6002-RB ships in trays. D2520-6002-AR ships in trays. Molex parts ship in trays. HARTING 09185207329 ships in bulk. TE Connectivity 103309-5 ships in bulk; 5103308-5 ships in tubes. Packaging selection depends on assembly process requirements and inventory management practices.

Q: Can I use parts with different operating temperature ranges?

A: The original 2520-6002UB operates -55°C to 105°C. N2520-6002-RB and D2520-6002-AR maintain this range. TE Connectivity parts (103309-5, 5103308-5) extend to -65°C minimum. Molex and HARTING parts do not specify operating temperature. Selection depends on application thermal requirements.

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