3M 3428-6002 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3428-6002 is a through-hole rectangular connector header with 20 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This component features shrouded 4-wall construction, solder termination, and push-pull fastening. 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)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Termination	Solder
Fastening Type	Push-Pull
Operating Temperature Range	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0
Current Rating	1A

Substitute Part Grouping Explanation

Substitution for the 3428-6002 is determined by strict equivalence across the following critical parameters:

Mandatory Matching 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)
Mounting type (Through Hole)
Shrouding configuration (Shrouded - 4 Wall)
Termination method (Solder)
Material flammability rating (UL94 V-0)

Allowable Variations in Substitutes:

Fastening type (Push-Pull, Latch Lock/Eject Hooks)
Contact finish materials and thicknesses
Insulation material composition (PBT, PCT, Thermoplastic variants)
Contact material (Copper Alloy, Brass, Phosphor Bronze)
Current rating (1A or higher)
Operating temperature range (minimum -55°C ~ 105°C or extended)
RoHS and REACH compliance status
Packaging format (Bulk, Tube, Tray)
Insulation color

Substitutes are grouped by manufacturer and product status to facilitate selection based on compliance requirements and availability.

Parameter Comparison

Part Number	Manufacturer	Product Status	Connector Type	Positions	Pitch	Fastening Type	Current Rating	Operating Temp	RoHS Status	Inventory
3428-6002	3M	Obsolete	Header	20 (2x)	0.100"	Push-Pull	1A	-55°C ~ 105°C	Non-compliant	1099 Pcs
N3428-6002RB	3M	Active	Header	20 (2x)	0.100"	Push-Pull	1.75A	-55°C ~ 105°C	ROHS3 Compliant	1400 Pcs
D3428-6002-AR	3M	Active	Header	20 (2x)	0.100"	Push-Pull	1.75A	-55°C ~ 105°C	RoHS Compliant	1101 Pcs
71918-020LF	Amphenol ICC (FCI)	Active	Header	20 (2x)	0.100"	Push-Pull	—	—	RoHS Compliant	1356 Pcs
71918-020	Amphenol ICC (FCI)	Active	Header	20 (2x)	0.100"	Push-Pull	—	—	Non-compliant	1062 Pcs
CWN-350-20-0021	CW Industries	Active	Header	20 (2x)	0.100"	Push-Pull	1A	-55°C ~ 125°C	ROHS3 Compliant	1096 Pcs
CWN-351-20-0021	CW Industries	Active	Header	20 (2x)	0.100"	Latch Lock/Eject Hooks, Short	1A	-55°C ~ 125°C	ROHS3 Compliant	1070 Pcs
CWN-352-20-0021	CW Industries	Active	Header	20 (2x)	0.100"	Latch Lock/Eject Hooks, Long	1A	-55°C ~ 125°C	ROHS3 Compliant	922 Pcs
CWN-360-20-0000	CW Industries	Active	Header	20 (2x)	0.100"	Push-Pull	1A	-55°C ~ 125°C	ROHS3 Compliant	1149 Pcs
CWN-360-20-0021	CW Industries	Active	Header	20 (2x)	0.100"	Push-Pull	1A	-55°C ~ 125°C	ROHS3 Compliant	772 Pcs
CWN-462-20-0000	CW Industries	Active	Header	20 (2x)	0.100"	Latch Lock/Eject Hooks, Long	1A	-55°C ~ 125°C	ROHS3 Compliant	1140 Pcs

Engineering Selection Recommendations

Primary Recommendation: N3428-6002RB (3M)

The N3428-6002RB is the direct active equivalent from the original manufacturer. It maintains identical mechanical and electrical specifications while providing ROHS3 compliance. The increased current rating (1.75A vs. 1A) offers enhanced performance margin. This part is preferred for applications requiring manufacturer continuity and established supply chain relationships.

Secondary Recommendation: D3428-6002-AR (3M)

The D3428-6002-AR provides RoHS compliance with equivalent performance characteristics. The D3000 series designation indicates a product line update. This option is suitable when tray packaging is preferred over bulk format.

Alternative Recommendation: 71918-020LF (Amphenol ICC / FCI)

The 71918-020LF is an active cross-manufacturer substitute with RoHS compliance. The Quickie™ series provides equivalent mechanical interface and electrical performance. This option is appropriate for applications where multi-source qualification is required or when Amphenol ICC supply chain is preferred.

CW Industries Options: CWN-350-20-0021, CWN-360-20-0000, CWN-360-20-0021

CW Industries connectors provide ROHS3 compliance and extended operating temperature range (-55°C ~ 125°C). These parts are suitable for applications requiring higher temperature performance. CWN-350-20-0021 and CWN-360 variants maintain push-pull fastening identical to the original part. Selection among CWN variants depends on contact post length requirements and specific application thermal demands.

Fastening Type Alternatives: CWN-351-20-0021, CWN-352-20-0021, CWN-462-20-0000

These parts feature latch lock or eject hook fastening mechanisms instead of push-pull. They are electrically and mechanically equivalent but provide enhanced mating security. Selection of these variants is appropriate only when the application design accommodates the different fastening interface.

Frequently Asked Questions (FAQ)

Q: Can I use N3428-6002RB as a direct replacement for 3428-6002?

A: Yes. The N3428-6002RB is mechanically and electrically equivalent. It maintains identical pitch, position count, row spacing, mounting type, and shrouding. The higher current rating (1.75A) is backward compatible. ROHS3 compliance is an improvement over the obsolete part.

Q: What is the difference between 71918-020 and 71918-020LF?

A: Both are Amphenol ICC Quickie™ series headers with identical mechanical specifications. The 71918-020LF includes tin finish on the post contacts and carries RoHS compliance. The 71918-020 is non-compliant. For new designs, 71918-020LF is the appropriate selection.

Q: Are CW Industries connectors compatible with 3M 3428-6002?

A: CW Industries CWN series connectors are mechanically and electrically compatible. They share identical pitch (0.100"), position count (20), row configuration (2x), mounting type (through hole), and shrouding (4-wall). Operating temperature range is extended to -55°C ~ 125°C. Fastening type varies by model; CWN-350-20-0021 and CWN-360 variants use push-pull fastening matching the original part.

Q: What does "shrouded 4-wall" mean?

A: Shrouded 4-wall construction provides plastic housing on all four sides of the connector body, excluding the mating face. This design prevents accidental contact with live pins and provides mechanical protection. All substitute parts listed maintain this shrouding configuration.

Q: Can I substitute a part with different fastening type?

A: Fastening type changes (push-pull to latch lock/eject hooks) alter the mating interface. Substitution is possible only if the mating connector or cable assembly is also updated to accommodate the new fastening mechanism. CWN-351-20-0021, CWN-352-20-0021, and CWN-462-20-0000 feature different fastening and require compatible mating hardware.

Q: What is the significance of RoHS compliance?

A: RoHS (Restriction of Hazardous Substances) compliance indicates the part meets regulatory requirements for lead-free construction and restricted substance limits. ROHS3 Compliant parts (N3428-6002RB, CWN series) meet current EU and global environmental standards. The original 3428-6002 is non-compliant, making compliant substitutes necessary for new production in regulated markets.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Bulk, Tube, Tray) affects only handling, storage, and logistics. Electrical and mechanical performance is identical regardless of packaging. Selection should be based on production workflow and inventory management requirements.

Q: What is the operating temperature difference between parts?

A: The original 3428-6002 operates -55°C ~ 105°C. CW Industries CWN series parts extend the upper limit to 125°C. This extended range is backward compatible; parts rated to 125°C function correctly in applications limited to 105°C. Selection of extended-range parts is appropriate only when the application requires operation above 105°C.

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