3M 3432-1402 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3432-1402 is a through-hole, right-angle rectangular connector header with 40 positions at 2.54mm pitch, designed for board-to-board or cable interconnection applications. This connector features shrouded 3-wall construction with male pin contacts and solder termination. The part is currently obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

3432-1402

3MIn Stock: 7093432-1402 Datasheet

Current PartRFQ

D3432-5002-AR

3MIn Stock: 1183D3432-5002-AR Datasheet

MFR RecommendedRFQ

N3432-5002RB

3MIn Stock: 904N3432-5002RB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3432-1402 is determined by the following critical parameters:

• Connector Type & Contact Configuration: Header with male pins
• Position Count & Pitch: 40 positions at 0.100" (2.54mm) mating pitch with 2 rows at 0.100" row spacing
• Mounting & Termination: Through-hole, right-angle mounting with solder termination
• Electrical Performance: Operating temperature range -55°C to 105°C, UL94 V-0 flammability rating
• Mechanical Compatibility: Shrouding configuration and contact dimensions must support equivalent mating interface

The identified substitute parts D3432-5002-AR and N3432-5002RB meet these core substitution criteria while offering improvements in product status, compliance, and availability.

Parameter Comparison

Engineering Selection Recommendations

D3432-5002-AR is the manufacturer-recommended primary substitute for the 3432-1402. This part maintains full electrical and mechanical compatibility while offering active product status and ROHS3 compliance. The D3432-5002-AR features enhanced shrouding (4-wall versus 3-wall), increased current rating (1.75A versus 1A), and improved contact finish specifications. Packaging in tray format supports automated assembly processes.

N3432-5002RB serves as an alternative substitute with active product status and RoHS compliance. This part retains the original 3000 series designation and provides equivalent electrical performance with 1.75A current rating. Bulk packaging format is suitable for manual assembly or custom kit configurations. The N3432-5002RB includes REACH unaffected status documentation.

Both substitute parts maintain the critical mating interface parameters, operating temperature range, and flammability certification required for direct functional replacement. Selection between D3432-5002-AR and N3432-5002RB should be based on packaging requirements, compliance documentation needs, and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the 3432-1402 be directly replaced with D3432-5002-AR or N3432-5002RB?

A: Yes. Both substitute parts maintain identical mating pitch (0.100" / 2.54mm), position count (40), row configuration (2 rows), contact dimensions, and termination method. The core mating interface is functionally equivalent.

Q: What are the differences in shrouding between the main part and substitutes?

A: The 3432-1402 features 3-wall shrouding, while both D3432-5002-AR and N3432-5002RB provide 4-wall shrouding. This enhancement improves mechanical protection and contact alignment without affecting mating compatibility.

Q: How do the current ratings differ?

A: The 3432-1402 is rated for 1A, while D3432-5002-AR and N3432-5002RB are rated for 1.75A. This represents an increase in current-carrying capacity. Applications requiring only 1A operation remain fully compatible.

Q: What is the significance of RoHS compliance status?

A: The 3432-1402 is RoHS non-compliant, while D3432-5002-AR is ROHS3 compliant and N3432-5002RB is RoHS compliant. For applications subject to RoHS regulations or customer requirements, the substitute parts provide regulatory alignment.

Q: Are there packaging differences between the substitute parts?

A: D3432-5002-AR is supplied in tray packaging, suitable for automated pick-and-place assembly. N3432-5002RB is supplied in bulk packaging, appropriate for manual assembly or custom distribution. Both formats contain equivalent components.

Q: What contact material differences exist?

A: The 3432-1402 uses copper alloy contacts, while D3432-5002-AR uses brass contacts. Both materials provide equivalent electrical performance and gold mating surface finish. N3432-5002RB retains copper alloy contacts matching the original part.

Q: Are the insulation height specifications compatible?

A: The 3432-1402 has 0.310" (7.87mm) insulation height, while both substitutes have 0.340" (8.64mm) insulation height. This dimensional increase does not affect mating interface compatibility but may require verification in space-constrained applications.