3M 3432-1302 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3432-1302 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 solder termination and latch lock/eject hook fastening. The part is classified as obsolete, making identification of active equivalent and substitute parts essential for ongoing design support and procurement.

Substiute Parts

3432-1302

3MIn Stock: 6553432-1302 Datasheet

Current PartRFQ

D3432-5002-AR

3MIn Stock: 1183D3432-5002-AR Datasheet

MFR RecommendedRFQ

N3432-5002RB

3MIn Stock: 904N3432-5002RB Datasheet

MFR RecommendedRFQ

499141-9

TE Connectivity AMP ConnectorsIn Stock: 955499141-9 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3M 3432-1302 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-row configuration
• Mounting & Termination: Through-hole, right-angle mounting with solder termination
• Electrical Performance: Current rating and operating temperature range compatibility
• Physical Compatibility: Shrouding style, insulation height, and contact dimensions

The following parts meet these substitution criteria:

3M MFR Recommended Substitutes:

• D3432-5002-AR (3M D3000 Series, Active) - Enhanced shrouding (4-wall), improved current rating (1.75A), RoHS3 compliant
• N3432-5002RB (3M 3000 Series, Active) - Enhanced shrouding (4-wall), improved current rating (1.75A), RoHS compliant

Cross-Manufacturer Substitute:

• 499141-9 (TE Connectivity AMP-Latch Series, Active) - Functionally equivalent 40-position header with latch lock fastening, extended temperature range (-65°C ~ 105°C), 250VAC voltage rating

Parameter Comparison

Engineering Selection Recommendations

For RoHS3 Compliance Requirements: Select D3432-5002-AR. This part maintains full functional compatibility with the 3432-1302 while providing ROHS3 compliance certification. The enhanced 4-wall shrouding and increased current rating (1.75A) offer improved performance margins over the original design.

For RoHS Compliance (Standard): Select N3432-5002RB. This part provides RoHS compliance with equivalent electrical and mechanical specifications to D3432-5002-AR. Packaging in bulk format may offer cost advantages for high-volume applications.

For Cross-Manufacturer Compatibility: Select 499141-9 (TE Connectivity). This part provides functional equivalence with extended operating temperature range (-65°C ~ 105°C) and 250VAC voltage rating specification. Note that this part carries RoHS non-compliant status, matching the original 3432-1302 classification.

For Obsolescence Mitigation: All three substitute parts are classified as active products with confirmed inventory availability, eliminating supply chain risk associated with the obsolete 3432-1302.

Frequently Asked Questions (FAQ)

Q: Can D3432-5002-AR directly replace 3432-1302 in existing designs? A: Yes. Both parts share identical mating pitch (0.100"), position count (40), row configuration (2), and contact dimensions. The D3432-5002-AR features enhanced 4-wall shrouding versus the original 3-wall design, which improves mechanical robustness without affecting electrical compatibility. The increased current rating (1.75A versus 1A) provides additional performance margin.

Q: What is the difference between D3432-5002-AR and N3432-5002RB? A: Both parts are mechanically and electrically equivalent with identical pitch, position count, and current ratings. The primary differences are packaging format (D3432-5002-AR ships in trays; N3432-5002RB in bulk) and RoHS certification level (ROHS3 versus standard RoHS). Select based on packaging requirements and compliance specifications for your application.

Q: Is 499141-9 from TE Connectivity a suitable replacement? A: Yes, for applications requiring cross-manufacturer sourcing. The 499141-9 maintains identical mating pitch, position count, and row spacing. It provides extended temperature range (-65°C to 105°C) and includes 250VAC voltage rating specification. However, it carries RoHS non-compliant status, matching the original part. Verify fastening type compatibility (latch lock/eject hooks, long) with your mating connector design.

Q: Are there mechanical fit concerns when substituting these parts? A: Minor dimensional variations exist in insulation height: 3432-1302 (0.310"), D3432-5002-AR and N3432-5002RB (0.340"), and 499141-9 (0.315"). These variations are within standard connector tolerance ranges and do not affect board-level mounting or mating connector engagement. Verify clearance in your specific PCB layout if space constraints exist.

Q: Which substitute part should I select for new designs? A: For new designs, D3432-5002-AR is recommended. It provides ROHS3 compliance, active product status with confirmed inventory, enhanced mechanical design (4-wall shrouding), and improved current rating (1.75A). This part represents the current generation equivalent to the obsolete 3432-1302.

Q: What is the inventory status for these substitute parts? A: D3432-5002-AR: 1152 pcs in stock (tray packaging); N3432-5002RB: 876 pcs in stock (bulk packaging); 499141-9: 930 pcs in stock (bulk packaging). All parts are classified as active products with confirmed new original inventory availability.