3M 3429-6305 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3429-6305 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 gold-plated mating contacts with tin-lead plated posts. The part is currently in active production status with wire wrap termination and latch lock/eject fastening. Equivalent and substitute parts are necessary when the original specification requires different termination methods, improved compliance certifications, or alternative packaging configurations while maintaining core electrical and mechanical compatibility.

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
Contact Shape	Square
Operating Temperature Range	-55°C ~ 105°C
Insulation Material	Polybutylene Terephthalate (PBT), Polyester, Glass Filled
Material Flammability Rating	UL94 V-0
Current Rating	1A
Features	Keying Slot, Mounting Flange

Substitute Part Grouping Explanation

Substitution eligibility for the 3429-6305 is determined by the following core parameters that must remain constant across all equivalent parts:

Connector type (Header), contact type (Male Pin), and contact shape (Square)
Number of positions (26) and row configuration (2 rows)
Pitch and row spacing (0.100" / 2.54mm)
Shrouding configuration (Shrouded - 4 Wall)
Mounting method (Through Hole)
Operating temperature range (-55°C ~ 105°C)
Insulation material class and flammability rating (UL94 V-0)
Contact finish materials (Gold mating surface, Tin or Tin-Lead posts)

The three substitute parts identified—3429-6002, D3429-6002-AR, and N3429-6002RB—maintain these core parameters while differing in termination method (solder vs. wire wrap), fastening type (push-pull vs. latch lock), contact post length, current rating, and compliance certifications. These variations allow selection based on assembly process requirements and regulatory compliance needs.

Parameter Comparison

Parameter	3429-6305	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, Long	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 Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)	10.0µin (0.25µm)	30.0µin (0.76µm)
Contact Finish - Post	Tin-Lead	Tin-Lead	Tin	Tin
Contact Material	Copper Alloy	Copper Alloy	Brass	Copper Alloy
Insulation Material	PBT, Polyester, Glass Filled	PBT, Polyester, Glass Filled	PCT, Polyester, Glass Filled	PCT, Polyester, Glass Filled
Operating Temperature	-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
Insulation Color	Black	Black	Black	Black
Current Rating	1A	1A	1.75A	1.75A
Features	Keying Slot, Mounting Flange	Keying Slot, Mounting Flange	Keying Slot, Mounting Flange	Keying Slot, Mounting Flange
RoHS Status	RoHS Compliant	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging	-	Bulk	Tray	Bulk
Inventory Status	768 Pcs New Original In Stock	1051 Pcs New Original In Stock	1805 Pcs New Original In Stock	1077 Pcs New Original In Stock

Engineering Selection Recommendations

3429-6002 is obsolete and RoHS non-compliant. Selection of this part is not recommended for new designs or applications requiring RoHS compliance.

D3429-6002-AR is the preferred substitute when solder termination is required and ROHS3 compliance is mandatory. This part operates at 1.75A current rating, exceeding the 3429-6305 specification, and features PCT insulation material with improved thermal characteristics. The tray packaging supports automated assembly processes. The reduced gold plating thickness (10.0µin vs. 30.0µin) and tin post finish (vs. tin-lead) align with lead-free manufacturing standards.

N3429-6002RB is suitable for applications requiring solder termination with RoHS compliance when ROHS3 certification is not required. This part maintains the same 1.75A current rating and tin post finish as D3429-6002-AR while retaining copper alloy contact material and PBT-based insulation. Bulk packaging is standard.

The 3429-6305 remains the appropriate selection when wire wrap termination and latch lock fastening are specified assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can 3429-6002 be used as a direct replacement for 3429-6305?

A: No. While both parts share identical mating contact geometry and pitch, 3429-6002 is obsolete and RoHS non-compliant. Additionally, it uses solder termination and push-pull fastening instead of the wire wrap and latch lock configuration of 3429-6305. Selection requires confirmation that the assembly process and regulatory requirements support these differences.

Q: What is the primary difference between D3429-6002-AR and N3429-6002RB?

A: Both parts support solder termination and deliver 1.75A current rating. D3429-6002-AR uses ROHS3-compliant materials with PCT insulation and brass contacts, supplied in tray packaging. N3429-6002RB uses RoHS-compliant materials with PCT insulation and copper alloy contacts, supplied in bulk packaging. Selection depends on compliance certification requirements and assembly automation needs.

Q: Are the contact post lengths interchangeable between 3429-6305 and the substitute parts?

A: No. The 3429-6305 features 0.610" (15.49mm) post length for wire wrap termination. All substitute parts feature 0.112" (2.84mm) post length for solder termination. These differences are fundamental to the termination method and are not interchangeable.

Q: What compliance certifications apply to each part?

A: 3429-6305 is RoHS Compliant. 3429-6002 is RoHS non-compliant. D3429-6002-AR is ROHS3 Compliant. N3429-6002RB is RoHS Compliant. All parts carry UL94 V-0 flammability rating and MSL 1 moisture sensitivity classification.

Q: Can these parts be used interchangeably in existing designs?

A: No. Substitution requires design review to confirm compatibility with the termination method (wire wrap vs. solder), fastening mechanism (latch lock vs. push-pull), contact post length, and compliance requirements. Mating contact geometry and electrical ratings are compatible, but mechanical integration differs significantly.

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