3M 3429-6205 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3429-6205 is a shrouded rectangular connector header designed for through-hole mounting in board-to-board or cable applications. This 26-position, 2-row connector operates across -55°C to 105°C and features wire wrap termination with latch lock/eject fastening. The part is currently active in production with 634 units in stock.

Substitute parts become necessary when wire wrap termination is not required, when solder termination is preferred for manufacturing processes, or when alternative packaging formats (tray versus bulk) are needed for assembly operations.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	26
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
Operating Temperature Range	-55°C ~ 105°C
Current Rating	1A
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Contact Shape	Square
Contact Finish - Mating	Gold

Substitute Part Grouping Explanation

Substitution of the 3429-6205 is determined by the following allowable parameter variations:

Termination Method: The main part uses wire wrap termination. Substitute parts employ solder termination, which is functionally equivalent for electrical connection but requires different assembly processes.

Fastening Type: The main part uses latch lock/eject hooks (short). Substitute parts use push-pull fastening, which provides equivalent mechanical retention through an alternative engagement mechanism.

Contact Length - Post: The main part specifies 0.610" (15.49mm) for wire wrap compatibility. Substitute parts specify 0.112" (2.84mm) for solder termination, reflecting the different post length requirements of each termination method.

Packaging Format: The main part is supplied in bulk packaging. Substitute D3429-6002-AR is supplied in tray packaging, which is a packaging variation only and does not affect electrical or mechanical compatibility.

Contact Material and Insulation Material: Minor variations in contact material (copper alloy versus brass) and insulation material (PBT versus PCT) are permitted within the 3M 3000 and D3000 series, provided all other electrical and mechanical parameters remain within specification.

Current Rating: The main part is rated at 1A. Substitute parts D3429-6002-AR and N3429-6002RB are rated at 1.75A, representing an increased current capacity that is backward compatible with 1A applications.

RoHS Compliance Status: The main part is RoHS compliant. Substitute 3429-6002 is RoHS non-compliant. Substitute parts D3429-6002-AR and N3429-6002RB are RoHS3 compliant or RoHS compliant, respectively.

Parameter Comparison

Parameter	3429-6205	3429-6002	D3429-6002-AR	N3429-6002RB
Manufacturer	3M	3M	3M	3M
Series	3000	3000	D3000	3000
Product Status	Active	Obsolete	Active	Active
Connector Type	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	26	26	26	26
Number of Rows	2	2	2	2
Pitch - Mating	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)
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Wire Wrap	Solder	Solder	Solder
Fastening Type	Latch Lock/Eject Hooks, Short	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)
Contact Length - Post	0.610" (15.49mm)	0.112" (2.84mm)	0.112" (2.84mm)	0.112" (2.84mm)
Overall Contact Length	1.150" (29.21mm)	0.652" (16.56mm)	0.652" (16.56mm)	0.652" (16.56mm)
Insulation Height	0.680" (17.27mm)	0.680" (17.27mm)	0.680" (17.27mm)	0.680" (17.27mm)
Contact Shape	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold
Contact Finish - Post	Gold	Tin-Lead	Tin	Tin
Contact Material	Copper Alloy	Copper Alloy	Brass	Copper Alloy
Operating Temperature Range	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Current Rating	1A	1A	1.75A	1.75A
RoHS Status	RoHS Compliant	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Active Production Applications: D3429-6002-AR and N3429-6002RB are both active products and are preferred substitutes. D3429-6002-AR offers ROHS3 compliance and tray packaging suitable for automated assembly. N3429-6002RB provides RoHS compliance with bulk packaging and is compatible with manual or semi-automated assembly processes.

For RoHS Compliance Requirements: The main part 3429-6205 is RoHS compliant. Substitute 3429-6002 is RoHS non-compliant and should not be selected for applications requiring RoHS certification. D3429-6002-AR (ROHS3 compliant) and N3429-6002RB (RoHS compliant) are suitable alternatives.

For Obsolete Part Replacement: Part 3429-6002 is marked as obsolete. While inventory is available, D3429-6002-AR or N3429-6002RB should be selected for new designs or long-term production to ensure continued supply.

For Termination Method Compatibility: Selection between the main part and substitutes depends on assembly process requirements. Wire wrap termination (3429-6205) is suitable for manual or semi-automated wire wrap equipment. Solder termination (3429-6002, D3429-6002-AR, N3429-6002RB) is suitable for wave soldering, reflow soldering, or hand soldering processes.

For Current Rating Considerations: The main part is rated at 1A. Substitutes D3429-6002-AR and N3429-6002RB are rated at 1.75A. Both ratings are suitable for applications requiring 1A or less. The higher rating of the substitutes does not create incompatibility with 1A applications.

Frequently Asked Questions (FAQ)

Q: Can the 3429-6205 be directly replaced with 3429-6002?

A: Direct mechanical and electrical replacement is possible if the assembly process can accommodate solder termination instead of wire wrap termination. However, 3429-6002 is obsolete and RoHS non-compliant. D3429-6002-AR or N3429-6002RB are preferred active alternatives.

Q: What is the primary difference between the main part and substitute parts?

A: The main part uses wire wrap termination with latch lock/eject fastening and longer contact posts (0.610"). Substitute parts use solder termination with push-pull fastening and shorter contact posts (0.112"). All other electrical and mechanical parameters remain equivalent.

Q: Are D3429-6002-AR and N3429-6002RB interchangeable?

A: Both parts are functionally equivalent for electrical and mechanical purposes. D3429-6002-AR is supplied in tray packaging and is ROHS3 compliant. N3429-6002RB is supplied in bulk packaging and is RoHS compliant. Selection depends on packaging requirements and compliance specifications for the application.

Q: Does the higher current rating of D3429-6002-AR and N3429-6002RB affect compatibility?

A: No. The 1.75A rating of these parts is backward compatible with applications rated at 1A. The higher rating does not create electrical or mechanical incompatibility.

Q: What is the impact of contact material variation between copper alloy and brass?

A: Both materials are acceptable for the specified electrical and mechanical parameters. Contact material variation does not affect connector performance within the operating temperature range of -55°C to 105°C or the current rating of the application.

Q: Can the 3429-6205 be used in applications requiring RoHS compliance?

A: Yes. The 3429-6205 is RoHS compliant. If substitution is necessary, D3429-6002-AR (ROHS3 compliant) or N3429-6002RB (RoHS compliant) maintain compliance. The obsolete part 3429-6002 is RoHS non-compliant and should not be selected for RoHS-regulated applications.

Q: What packaging considerations apply to these parts?

A: The main part 3429-6205 is supplied in bulk packaging. D3429-6002-AR is supplied in tray packaging, which is suitable for automated pick-and-place assembly. N3429-6002RB is supplied in bulk packaging. Packaging selection depends on assembly equipment and process requirements.

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