3M 3428-6302 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The 3M 3428-6302 is a shrouded rectangular connector header for through-hole mounting with 20 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The connector features male pins with gold-plated mating contacts, tin-lead post finish, and is rated for 1A current at operating temperatures from -55°C to 105°C. Substitute parts must maintain electrical compatibility while meeting current manufacturing and compliance standards.

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
Fastening Type	Latch Lock/Eject Hooks
Contact Finish - Mating	Gold
Operating Temperature Range	-55°C ~ 105°C
Current Rating	1A
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution for the 3M 3428-6302 is determined by the following critical parameters: 20-position count, 2-row configuration, 0.100" (2.54mm) pitch in both mating and row spacing, through-hole mounting, shrouded 4-wall design, male pin contact type, and operating temperature range of -55°C to 105°C. Substitute parts must maintain these core electrical and mechanical specifications to ensure board-level compatibility without redesign.

Substitute parts are grouped into two categories:

Direct 3M Equivalents (Same Series, Active Status): Parts N3428-6302RB, N3428-6002RB, and D3428-6002-AR maintain the 20-position, 2-row, 2.54mm pitch configuration with identical mounting and shrouding specifications. These parts differ in fastening type, contact material, insulation material, and current rating enhancements.

Cross-Manufacturer Alternatives: TE Connectivity AMP Connectors (2-5499160-4, 5102325-4) and Amphenol ICC (53611-S20-4LF) provide functionally equivalent 20-position, 2-row headers at 2.54mm pitch with through-hole mounting and shrouded design. These alternatives maintain electrical compatibility while offering different contact finishes and fastening mechanisms.

Non-Equivalent Parts (Different Position Count): HARTING parts (09185265924, 09195265323740, 09195265323741, 09195266323740) feature 26 positions instead of 20 and are not direct substitutes for the 3428-6302. These parts are listed for reference only and require board redesign for implementation.

Parameter Comparison

Parameter	3428-6302	N3428-6302RB	D3428-6002-AR	N3428-6002RB	2-5499160-4	5102325-4	53611-S20-4LF
Manufacturer	3M	3M	3M	3M	TE Connectivity	TE Connectivity	Amphenol ICC
Number of Positions	20	20	20	20	20	20	20
Number of Rows	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)
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)
Connector Type	Header	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	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
Fastening Type	Latch Lock/Eject Hooks, Long	Latch Lock/Eject Hooks, Long	Push-Pull	Push-Pull	Latch Lock/Eject Hooks, Short	Latch Lock/Eject Hooks	Latch Lock/Eject Hooks
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold or Gold-Palladium	Gold or Gold-Palladium	Gold or Gold, GXT™
Contact Finish - Post	Tin-Lead	Tin	Tin	Tin	Tin	Tin	Tin
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-65°C ~ 105°C	Not specified
Current Rating	1A	1.75A	1.75A	1.75A	1A	1A per Contact	Not specified
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	Non-compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	Not applicable	RoHS Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Recommendation: N3428-6302RB (3M)

The N3428-6302RB is the direct equivalent of the obsolete 3428-6302, maintaining identical mechanical and electrical specifications while offering active product status and ROHS3 compliance. This part is packaged in trays with 3,951 units in stock, providing supply continuity. The upgrade from tin-lead to tin post finish and the increase in current rating to 1.75A represent improvements over the original specification without requiring design modifications.

Secondary Recommendation: D3428-6002-AR (3M, D3000 Series)

The D3428-6002-AR provides an alternative within the 3M product family with active status and RoHS compliance. This part features a push-pull fastening mechanism instead of latch hooks and uses brass contact material with reduced gold plating thickness (10.0µin versus 30.0µin). The D3000 series designation indicates a newer design generation. Selection of this part requires verification that the push-pull fastening mechanism is compatible with existing mating connectors.

Tertiary Recommendation: 2-5499160-4 (TE Connectivity AMP-Latch Series)

The 2-5499160-4 provides cross-manufacturer compatibility with active product status and ROHS3 compliance. This part maintains the 20-position, 2-row, 2.54mm pitch configuration with through-hole mounting and shrouded design. The AMP-Latch series uses short latch hooks rather than long hooks, requiring verification of mating connector compatibility. Current rating remains at 1A, matching the original specification.

Alternative: 5102325-4 (TE Connectivity AMP-Latch Series)

The 5102325-4 offers extended operating temperature range (-65°C to 105°C) compared to the original specification (-55°C to 105°C). This part is suitable for applications requiring lower temperature performance. The RoHS status is not applicable, indicating this part may contain lead-based finishes. Voltage rating of 250VAC is specified, providing additional electrical performance data.

Alternative: 53611-S20-4LF (Amphenol ICC Quickie™ Series)

The 53611-S20-4LF provides cross-manufacturer compatibility through the Amphenol ICC Quickie™ series with RoHS compliance and active product status. This part uses phosphor bronze contact material and thermoplastic insulation. Contact finish thickness on mating surfaces is reduced to 15.0µin. Operating temperature range is not specified in available data.

Frequently Asked Questions (FAQ)

Q: Can the N3428-6302RB be used as a direct drop-in replacement for the 3428-6302?

A: Yes. The N3428-6302RB maintains identical mechanical dimensions, pitch spacing, position count, mounting type, and shrouding configuration. The primary differences are improved current rating (1.75A versus 1A), post finish material (tin versus tin-lead), and active product status with ROHS3 compliance. No board redesign is required.

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

A: Latch lock/eject hooks provide positive mechanical retention through hook engagement with mating connector features. Push-pull fastening uses a different engagement mechanism. These fastening types are not interchangeable; mating connectors must be verified for compatibility before substitution.

Q: Are the HARTING parts (09185265924, 09195265323740, 09195265323741, 09195266323740) suitable replacements?

A: No. These HARTING parts feature 26 positions instead of 20, making them incompatible with the 3428-6302 without board redesign. These parts are listed in the substitute data but do not meet the core substitution criteria for this application.

Q: What does ROHS3 compliance mean compared to RoHS compliance?

A: ROHS3 refers to compliance with the third iteration of the Restriction of Hazardous Substances directive, which includes additional restricted substances beyond the original RoHS standard. The 3428-6302 is RoHS non-compliant, while N3428-6302RB, D3428-6002-AR, N3428-6002RB, and 2-5499160-4 are ROHS3 compliant, meeting current environmental regulations.

Q: Can I use the 5102325-4 in applications requiring lower temperature operation?

A: Yes. The 5102325-4 is rated for -65°C to 105°C, extending the lower temperature limit by 10°C compared to the original 3428-6302 specification of -55°C to 105°C. This part is suitable for applications requiring enhanced low-temperature performance.

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

A: Contact finish thickness affects durability and wear resistance. The original 3428-6302 specifies 30.0µin (0.76µm) gold plating on mating contacts. The D3428-6002-AR uses 10.0µin (0.25µm), while the 53611-S20-4LF uses 15.0µin (0.38µm). Thinner finishes may reduce contact life in high-cycle mating applications.

Q: Are there packaging differences between substitute parts?

A: Yes. The 3428-6302 is supplied without specified packaging. N3428-6302RB is supplied in trays, D3428-6002-AR and N3428-6002RB in trays and bulk respectively, 2-5499160-4 and 5102325-4 in bulk, and 53611-S20-4LF in trays. Packaging selection may affect procurement lead times and handling requirements.

Q: What is the current rating significance for this application?

A: The original 3428-6302 is rated for 1A per contact. Substitute parts N3428-6302RB, D3428-6002-AR, and N3428-6002RB are rated for 1.75A, providing 75% additional current capacity. This enhancement allows for higher power applications without exceeding contact ratings. The 2-5499160-4 and 5102325-4 maintain the 1A rating.

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