3M 3429-1302 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3429-1302 is a through-hole, right-angle rectangular connector header with 26 positions at 0.100" (2.54mm) pitch. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The connector features shrouded 3-wall design with solder termination and latch lock/eject hook fastening, suitable for board-to-board or cable interconnections in industrial and commercial electronics.

Substiute Parts

3429-1302

3MIn Stock: 10373429-1302 Datasheet

Current PartRFQ

N3429-1302RB

3MIn Stock: 1083N3429-1302RB Datasheet

DirectRFQ

3429-5002

3MIn Stock: 15163429-5002 Datasheet

MFR RecommendedRFQ

D3429-5002-AR

3MIn Stock: 1234D3429-5002-AR Datasheet

MFR RecommendedRFQ

N3429-5002RB

3MIn Stock: 2315N3429-5002RB Datasheet

MFR RecommendedRFQ

499141-6

TE Connectivity AMP ConnectorsIn Stock: 1007499141-6 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 3M 3429-1302 is determined by the following critical parameters that must remain constant:

• Pitch and Position Count: 0.100" (2.54mm) pitch with 26 positions in 2 rows
• Mounting Configuration: Through-hole, right-angle orientation
• Contact Type: Male pin with solder termination
• Electrical Performance: Current rating and operating temperature range
• Physical Compatibility: Connector dimensions, shrouding style, and fastening mechanism

Substitute parts are grouped into two categories:

Category 1: Direct 3M Equivalents (Same Series) Parts N3429-1302RB, 3429-5002, N3429-5002RB, and D3429-5002-AR maintain the core 26-position, 2.54mm pitch configuration with compatible mechanical interfaces. These parts differ in shrouding design (3-wall vs. 4-wall), fastening type (latch lock vs. push-pull), and compliance status.

Category 2: Cross-Manufacturer Alternative Part 499141-6 from TE Connectivity AMP Connectors provides functional equivalence with identical pitch, position count, and mounting type, though with different contact material and fastening mechanism specifications.

Parameter Comparison

Engineering Selection Recommendations

For RoHS3 Compliance Requirements: Select N3429-1302RB, D3429-5002-AR, or N3429-5002RB. These parts carry active product status and ROHS3 compliance certification. N3429-1302RB maintains the original 3-wall shrouding and latch lock fastening, providing the closest mechanical match to the 3429-1302. N3429-5002RB and D3429-5002-AR feature 4-wall shrouding and push-pull fastening with enhanced current rating (1.75A).

For Legacy Non-Compliant Applications: The 3429-5002 provides direct 3M equivalence with identical fastening and shrouding specifications, though it remains obsolete. The 499141-6 from TE Connectivity offers active product status with latch lock fastening compatible with the original design, though it carries RoHS non-compliant status.

For Maximum Current Capacity: Parts with 1.75A rating (N3429-1302RB, 3429-5002, D3429-5002-AR, N3429-5002RB) exceed the original 1A specification, providing design margin for applications requiring higher current handling.

For Extended Temperature Range: The 499141-6 supports -65°C minimum operating temperature, compared to -55°C for 3M variants, suitable for extreme environment applications.

Frequently Asked Questions (FAQ)

Q: Can N3429-1302RB directly replace 3429-1302 on existing PCBs? A: Yes. N3429-1302RB maintains identical pitch (0.100"), position count (26), mounting type (through-hole right-angle), and fastening mechanism (latch lock). The 3-wall shrouding and contact dimensions are equivalent. The primary difference is ROHS3 compliance and improved current rating (1.75A vs. 1A).

Q: What is the mechanical difference between 3-wall and 4-wall shrouding? A: 3-wall shrouding (3429-1302, N3429-1302RB) provides three sides of insulation protection. 4-wall shrouding (3429-5002, D3429-5002-AR, N3429-5002RB) adds a fourth wall for enhanced EMI shielding and mechanical protection. Both maintain the same 0.100" pitch and 26-position configuration.

Q: Does fastening type affect PCB compatibility? A: Fastening type (latch lock vs. push-pull) affects mating connector selection but not PCB footprint. Both mechanisms use identical through-hole solder termination patterns. Verify that mating connectors are compatible with the selected fastening type.

Q: Can I use 499141-6 as a direct substitute? A: 499141-6 provides functional equivalence with identical pitch, position count, and mounting orientation. However, it is a TE Connectivity part with different contact material (brass vs. copper alloy) and carries RoHS non-compliant status. Verify mechanical fit and compliance requirements before substitution.

Q: What is the impact of contact finish differences (Tin vs. Tin-Lead)? A: Both finishes provide solder compatibility. Tin-Lead (3429-1302, 3429-5002, 499141-6) and Tin (N3429-1302RB, D3429-5002-AR, N3429-5002RB) are standard post finishes. Selection depends on soldering process and RoHS compliance requirements.

Q: Are there inventory considerations for these substitutes? A: N3429-5002RB has the highest inventory (2,290 pcs), followed by 3429-5002 (1,434 pcs) and D3429-5002-AR (1,197 pcs). N3429-1302RB (1,049 pcs) and 499141-6 (929 pcs) have lower availability. Verify current stock before design finalization.

Q: What compliance certifications apply to each substitute? A: N3429-1302RB, D3429-5002-AR, and N3429-5002RB are ROHS3 compliant with active product status. The 3429-1302, 3429-5002, and 499141-6 are RoHS non-compliant. All parts carry UL94 V-0 flammability rating and are classified as EAR99 for export control purposes.