3M 3428-6202 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3428-6202 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 construction with solder termination and latch lock/eject hook fastening. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

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
Operating Temperature Range	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0
Current Rating	1A

Substitute Part Grouping Explanation

Substitution for the 3428-6202 is determined by the following critical parameters:

Connector type (Header), contact type (Male Pin), and position count (20 positions in 2 rows)
Mating pitch (0.100" / 2.54mm) and row spacing (0.100" / 2.54mm)
Mounting method (Through Hole) and shrouding configuration (Shrouded - 4 Wall)
Termination type (Solder) and operating temperature range (-55°C ~ 105°C)
Material flammability compliance (UL94 V-0)

Substitute parts are grouped into two categories:

Category 1: Direct 3M Equivalents - Parts from the 3M 3000 and D3000 series that maintain identical or superior electrical and mechanical specifications while offering active product status and improved compliance ratings.

Category 2: Cross-Manufacturer Alternatives - HARTING SEK series connectors that meet the same functional requirements with compatible pitch, position count, and shrouding specifications.

Parameter Comparison

Parameter	3428-6202	N3428-6202RB	D3428-6002-AR	N3428-6002RB	09185205912	09185205914	09185206912	09185206914	09185207912	09185207914	09195205904
Manufacturer	3M	3M	3M	3M	HARTING	HARTING	HARTING	HARTING	HARTING	HARTING	HARTING
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
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)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
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
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°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
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish - Post	Tin-Lead	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: N3428-6202RB (3M)

The N3428-6202RB is the direct active equivalent from 3M. It maintains identical electrical and mechanical specifications to the 3428-6202 while offering ROHS3 compliance and active product status. The packaging is available in bulk format. Current rating is increased to 1.75A, providing enhanced performance margin.

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

The D3428-6002-AR from the D3000 series is an active alternative with RoHS compliance. It features push-pull fastening instead of latch lock/eject hooks and is packaged in trays. This part is suitable for applications where fastening mechanism flexibility is acceptable.

Tertiary Recommendation: N3428-6002RB (3M)

The N3428-6002RB offers ROHS3 compliance and active status with push-pull fastening. It maintains the 3000 series designation and bulk packaging format.

Cross-Manufacturer Alternatives: HARTING SEK Series

The HARTING SEK series connectors (09185205912, 09185205914, 09185206912, 09185206914, 09185207912, 09185207914, 09195205904) provide functional equivalence with extended operating temperature range (-55°C ~ 125°C) and ROHS3 compliance. These parts differ in contact length specifications and fastening hook configurations. Selection within this series depends on specific mechanical envelope requirements.

Frequently Asked Questions (FAQ)

Q: Can N3428-6202RB be used as a direct replacement for 3428-6202?

A: Yes. The N3428-6202RB maintains identical pitch (0.100" / 2.54mm), position count (20 in 2 rows), shrouding (4-wall), and mounting method (through-hole solder). The primary differences are active product status, ROHS3 compliance, and increased current rating (1.75A vs 1A).

Q: What is the difference between latch lock/eject hooks and push-pull fastening?

A: Latch lock/eject hooks provide mechanical retention through spring-loaded latches that engage mating connectors. Push-pull fastening uses a different engagement mechanism. Both provide secure mating but differ in insertion and removal force profiles and mechanical feel.

Q: Are HARTING SEK series connectors mechanically compatible with 3M 3000 series?

A: HARTING SEK series connectors share identical pitch (0.100" / 2.54mm), position count (20 in 2 rows), and shrouding (4-wall). However, contact length specifications vary. Verify mechanical envelope compatibility with your specific mating connector before selection.

Q: What packaging options are available?

A: 3M parts are available in bulk and tray packaging. HARTING parts are available in bulk and tray formats. Packaging selection affects handling, storage, and cost considerations but does not affect electrical or mechanical performance.

Q: Why do substitute parts have higher operating temperature ratings?

A: HARTING SEK series parts are rated to -55°C ~ 125°C compared to the original -55°C ~ 105°C specification. This represents an extended thermal capability and does not restrict use in applications requiring only the original temperature range.

Q: Are all substitute parts RoHS compliant?

A: The original 3428-6202 is RoHS non-compliant. All substitute parts listed are either RoHS Compliant or ROHS3 Compliant, meeting current regulatory requirements.

Q: What is the current rating difference between 3428-6202 and N3428-6202RB?

A: The original 3428-6202 is rated at 1A per contact. The N3428-6202RB is rated at 1.75A per contact, providing increased current capacity for the same physical form factor.

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