3M 3429-6302 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3429-6302 is a through-hole rectangular connector header with 26 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This component 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
Manufacturer Part Number	3429-6302
Manufacturer	3M
Connector Type	Header
Number of Positions	26
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Shrouding	Shrouded - 4 Wall
Operating Temperature Range	-55°C ~ 105°C
Current Rating	1A
Material Flammability Rating	UL94 V-0
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution for the 3429-6302 is determined by the following critical parameters:

Connector Type & Configuration: Header, 26 positions, 2 rows, 0.100" (2.54mm) pitch
Mounting & Termination: Through hole, solder termination
Shrouding & Fastening: Shrouded 4-wall construction with latch mechanisms
Electrical Performance: 1A current rating minimum, operating temperature -55°C to 105°C
Compliance Requirements: RoHS status and material flammability rating

Substitute parts are grouped into two categories:

Category A - Direct Functional Equivalents (Same Position Count) Parts maintaining 26-position configuration with identical pitch and mounting characteristics. These include 3M series parts (3429-6002, D3429-6002-AR, N3429-6002RB) and TE Connectivity AMP-Latch series (102321-6, 2-5102321-6, 2-5499206-6, 499922-6, 5102321-6) and Amphenol ICC Quickie™ series (53611-S26-4LF).

Category B - Higher Position Count Alternative The 3M N3432-6302RB provides 40-position configuration at the same 0.100" pitch, suitable for applications requiring expanded connectivity while maintaining mechanical and electrical compatibility parameters.

Parameter Comparison

Parameter	3429-6302	3429-6002	D3429-6002-AR	N3429-6002RB	102321-6	2-5102321-6	2-5499206-6	499922-6	5102321-6	53611-S26-4LF	N3432-6302RB
Manufacturer	3M	3M	3M	3M	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity	Amphenol ICC	3M
Number of Positions	26	26	26	26	26	26	26	26	26	26	40
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
Pitch - Mating	0.100"	0.100"	0.100"	0.100"	0.100"	0.100"	0.100"	0.100"	0.100"	0.100"	0.100"
Row Spacing - Mating	0.100"	0.100"	0.100"	0.100"	0.100"	0.100"	0.100"	0.100"	0.100"	0.100"	0.100"
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	Solder	Solder	Solder
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
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-	-55°C ~ 105°C
Current Rating	1A	1A	1.75A	1.75A	1A per Contact	1A per Contact	1A	1A	1A per Contact	-	1.75A
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
Product Status	Obsolete	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Non-compliant	Non-compliant	ROHS3 Compliant	Compliant	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	Non-compliant	ROHS3 Compliant	Compliant	Compliant

Engineering Selection Recommendations

For Active Product Status with RoHS3 Compliance: D3429-6002-AR, N3429-6002RB, 2-5102321-6, 2-5499206-6, and 5102321-6 are recommended. These parts maintain the 26-position configuration and meet current regulatory requirements while providing equivalent electrical and mechanical performance.

For Extended Current Rating Requirements: D3429-6002-AR, N3429-6002RB, and N3432-6302RB offer 1.75A current rating, providing margin above the original 1A specification. These are suitable for applications with higher current demands within the same connector family.

For Higher Position Count Applications: N3432-6302RB provides 40-position configuration at identical 0.100" pitch and maintains all mechanical and thermal specifications. This option is appropriate when expanded connectivity is required without changing the fundamental connector interface.

For TE Connectivity AMP-Latch Series: 102321-6, 2-5102321-6, 2-5499206-6, 499922-6, and 5102321-6 provide cross-manufacturer compatibility. These parts feature extended operating temperature range (-65°C to 105°C) and are available in active product status with RoHS compliance options.

For Amphenol ICC Alternative: 53611-S26-4LF (Quickie™ series) offers RoHS compliance and active product status. This part provides cross-manufacturer diversity while maintaining 26-position, 0.100" pitch configuration and UL94 V-0 flammability rating.

Frequently Asked Questions (FAQ)

Q: Can I use a 40-position connector (N3432-6302RB) as a direct replacement for the 26-position 3429-6302?

A: The N3432-6302RB maintains identical pitch (0.100"), mounting type (through hole), termination (solder), and shrouding (4-wall). However, the increased position count (40 vs. 26) requires PCB layout modification. Use only if your application can accommodate the additional connector positions.

Q: What is the difference between 3M 3429-6002 and D3429-6002-AR?

A: Both are 26-position, 0.100" pitch headers. Key differences: 3429-6002 is obsolete and RoHS non-compliant; D3429-6002-AR is active product status and ROHS3 compliant. D3429-6002-AR also features higher current rating (1.75A vs. 1A) and improved contact finish specifications.

Q: Are TE Connectivity AMP-Latch parts mechanically compatible with 3M connectors?

A: TE Connectivity AMP-Latch series (102321-6, 2-5102321-6, 2-5499206-6, 499922-6, 5102321-6) maintain identical 26-position, 0.100" pitch configuration and through-hole solder termination. Mechanical compatibility is confirmed for PCB mounting. Verify mating connector compatibility with your specific cable assembly or receptacle.

Q: What packaging options are available?

A: Substitute parts are available in Tray and Bulk packaging. 3429-6002 and N3429-6002RB are supplied in Bulk; D3429-6002-AR, TE Connectivity parts, and Amphenol ICC 53611-S26-4LF are supplied in Tray. Confirm packaging requirements with your procurement specifications.

Q: Which substitute parts meet current RoHS requirements?

A: RoHS3 compliant parts include D3429-6002-AR, N3429-6002RB, 2-5102321-6, 2-5499206-6, 5102321-6, and 53611-S26-4LF. RoHS compliant (non-ROHS3) parts include 102321-6 and 499922-6. Verify your specific regulatory requirement before selection.

Q: What is the operating temperature range for each substitute?

A: 3M parts (3429-6002, D3429-6002-AR, N3429-6002RB, N3432-6302RB) operate -55°C to 105°C. TE Connectivity AMP-Latch series operates -65°C to 105°C, providing extended low-temperature performance. Amphenol ICC 53611-S26-4LF operating temperature is not specified in available data.

Q: Can I mix different manufacturers' connectors in the same assembly?

A: All substitute parts maintain identical 26-position, 0.100" pitch configuration and through-hole solder termination. Cross-manufacturer use is mechanically feasible for PCB mounting. Verify mating connector compatibility with your specific cable assembly or receptacle design before implementation.

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