3M 3429-5302 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3429-5302 is a through-hole, right-angle rectangular connector header with 26 positions at 0.100" (2.54mm) pitch. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement. The connector features shrouded 4-wall construction with solder termination and latch lock/eject hook fastening, suitable for board-to-board or cable applications in industrial and commercial electronics.

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)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Contact Finish - Mating	Gold
Contact Finish - Post	Tin-Lead
Operating Temperature	-55°C ~ 105°C
Current Rating	1.75A
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following critical parameters:

Connector configuration: 26 positions, 2 rows, 0.100" (2.54mm) pitch and row spacing
Mounting and orientation: Through-hole, right-angle configuration
Shrouding: Shrouded 4-wall construction
Termination method: Solder termination
Contact material and finish: Gold-plated mating surface with tin or tin-lead post finish
Electrical performance: 1.75A current rating
Environmental compliance: UL94 V-0 flammability rating, operating temperature range -55°C to 105°C or higher

Substitute parts are grouped into two categories:

Category A - Direct 3M Equivalents (Series 3000 and D3000): Parts maintaining identical electrical and mechanical specifications with variations in fastening type (push-pull vs. latch lock), packaging format, and RoHS compliance status.

Category B - Cross-Manufacturer Alternatives (HARTING SEK Series): Parts from HARTING that maintain core connector geometry and electrical parameters but feature different contact post lengths, insulation materials (PBT vs. PCT), and fastening mechanisms (short latch lock hooks).

Parameter Comparison

Part Number	Manufacturer	Positions	Pitch	Mounting	Fastening Type	Contact Finish - Post	Operating Temp	RoHS Status	Product Status
3429-5302	3M	26 (2x13)	0.100"	Through Hole, R/A	Latch Lock/Eject, Long	Tin-Lead	-55°C ~ 105°C	Non-compliant	Obsolete
N3429-5302RB	3M	26 (2x13)	0.100"	Through Hole, R/A	Latch Lock/Eject, Long	Tin	-55°C ~ 105°C	ROHS3 Compliant	Active
3429-5002	3M	26 (2x13)	0.100"	Through Hole, R/A	Push-Pull	Tin-Lead	-55°C ~ 105°C	Non-compliant	Obsolete
D3429-5002-AR	3M	26 (2x13)	0.100"	Through Hole, R/A	Push-Pull	Tin	-55°C ~ 105°C	ROHS3 Compliant	Active
N3429-5002RB	3M	26 (2x13)	0.100"	Through Hole, R/A	Push-Pull	Tin	-55°C ~ 105°C	ROHS3 Compliant	Active
09185265911	HARTING	26 (2x13)	0.100"	Through Hole, R/A	Latch Lock/Eject, Short	Tin	-55°C ~ 125°C	ROHS3 Compliant	Active
09185265913	HARTING	26 (2x13)	0.100"	Through Hole, R/A	Latch Lock/Eject, Short	Tin	-55°C ~ 125°C	ROHS3 Compliant	Active
09185266911	HARTING	26 (2x13)	0.100"	Through Hole, R/A	Latch Lock/Eject, Short	Tin	-55°C ~ 125°C	ROHS3 Compliant	Active
09185266913	HARTING	26 (2x13)	0.100"	Through Hole, R/A	Latch Lock/Eject, Short	Tin	-55°C ~ 125°C	ROHS3 Compliant	Active
09185267911	HARTING	26 (2x13)	0.100"	Through Hole, R/A	Latch Lock/Eject, Short	Tin	-55°C ~ 125°C	ROHS3 Compliant	Active
09185267913	HARTING	26 (2x13)	0.100"	Through Hole, R/A	Latch Lock/Eject, Short	Tin	-55°C ~ 125°C	ROHS3 Compliant	Active

Engineering Selection Recommendations

Primary Recommendation - 3M N3429-5302RB: This part provides the closest functional equivalence to the 3429-5302 while addressing obsolescence. It maintains identical connector geometry, pitch, row spacing, mounting configuration, and fastening mechanism (latch lock/eject hooks, long). The primary differences are ROHS3 compliance and tin post finish instead of tin-lead. This part is actively manufactured and available in bulk packaging with 12,165 units in stock.

Secondary Recommendation - 3M D3429-5002-AR or N3429-5002RB: These alternatives employ push-pull fastening instead of latch lock/eject hooks. Both are ROHS3 compliant and actively produced. Selection between these depends on mechanical interface requirements where push-pull engagement is acceptable. D3429-5002-AR is supplied in tray packaging; N3429-5002RB is supplied in bulk.

Cross-Manufacturer Alternative - HARTING 09185265913 or 09185267913: These HARTING SEK series connectors maintain the 26-position, 2.54mm pitch configuration and through-hole right-angle mounting. They feature short latch lock/eject hooks and support extended operating temperature to 125°C. Contact post lengths differ (0.114" vs. 0.112"), and insulation material is PBT glass-filled instead of PCT. These parts are ROHS3 compliant and actively manufactured.

Compliance Consideration: The original 3429-5302 is RoHS non-compliant. All recommended substitutes are ROHS3 compliant, supporting modern procurement and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can N3429-5302RB be used as a direct replacement for 3429-5302?

A: Yes. Both parts share identical connector geometry, pitch, row spacing, mounting type, and fastening mechanism. The primary differences are RoHS compliance status and post finish material (tin vs. tin-lead). Electrical performance and mechanical compatibility are equivalent.

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

A: Latch lock/eject hooks provide positive mechanical engagement with a mating connector and require deliberate unlatching for disconnection. Push-pull fastening uses a different engagement mechanism. Selection depends on the mating connector type and mechanical interface requirements of the application.

Q: Why do HARTING parts have different contact post lengths?

A: HARTING SEK series connectors are designed for board-to-cable/wire applications with different PCB mounting depths. The 0.114" and 0.177" post lengths accommodate different board thicknesses. Verify PCB thickness compatibility before selection.

Q: Are HARTING 09185265911, 09185265913, 09185266911, 09185266913, 09185267911, and 09185267913 interchangeable?

A: These parts differ in contact post length (0.177" vs. 0.114") and fastening hook length (short latch lock). All maintain 26-position, 2.54mm pitch configuration and through-hole right-angle mounting. Selection depends on specific PCB mounting requirements and mating connector specifications.

Q: What is the significance of the contact finish thickness difference between 3M and HARTING parts?

A: Contact finish thickness affects durability and wear resistance. The 3M parts specify 30.0µin (0.76µm) mating finish and 200.0µin (5.08µm) post finish. HARTING parts do not specify mating finish thickness but maintain tin post finish. Both meet UL94 V-0 flammability requirements and support 1.75A current rating.

Q: Can I use a ROHS3 compliant part as a replacement for a RoHS non-compliant part?

A: Yes. ROHS3 compliance is a superset requirement that ensures the part meets or exceeds RoHS non-compliant specifications. All ROHS3 compliant substitutes are suitable for applications originally designed with RoHS non-compliant parts.

Q: What packaging options are available?

A: 3M parts are supplied in bulk or tray packaging. HARTING parts are supplied in bulk packaging. Packaging selection affects handling, storage, and procurement logistics but does not affect electrical or mechanical performance.

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