3M 3433-6405 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3433-6405 is an active rectangular connector header designed for through-hole mounting applications. This 50-position, 2-row connector with 0.100" (2.54mm) pitch provides shrouded 4-wall construction with wire wrap termination and ejector fastening. The part is RoHS compliant and rated for -55°C to 105°C operation. Substitute parts are identified to address specific application requirements including termination method, contact material composition, and packaging format variations.

Substiute Parts

3433-6405

3MIn Stock: 10793433-6405 Datasheet

Current PartRFQ

D3433-6002-AR

3MIn Stock: 1293D3433-6002-AR Datasheet

MFR RecommendedRFQ

N3433-6002RB

3MIn Stock: 1326N3433-6002RB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3433-6405 is determined by the following critical parameters: connector type (header), contact type (male pin), number of positions (50), number of rows (2), mating pitch (0.100"/2.54mm), row spacing (0.100"/2.54mm), shrouding configuration (shrouded 4-wall), mounting type (through hole), operating temperature range (-55°C to 105°C), and flammability rating (UL94 V-0).

The identified substitutes—D3433-6002-AR and N3433-6002RB—maintain these core parameters while introducing controlled variations in termination method (solder vs. wire wrap), fastening type (push-pull vs. ejector), contact material (brass vs. copper alloy), contact post length, and current rating. These variations allow selection based on specific assembly and performance requirements without compromising fundamental connector compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status and comply with RoHS requirements, with D3433-6002-AR meeting ROHS3 specifications. Selection between these parts depends on assembly method compatibility and current capacity requirements.

The 3433-6405 is appropriate for applications requiring wire wrap termination with ejector fastening and standard 1A current capacity. The D3433-6002-AR and N3433-6002RB both transition to solder termination with push-pull fastening and increased 1.75A current capacity, accommodating higher-power applications. The D3433-6002-AR is packaged in trays, while N3433-6002RB is supplied in bulk format.

Contact post length differs significantly: the 3433-6405 provides 0.610" (15.49mm) posts for wire wrap applications, whereas both substitutes provide 0.112" (2.84mm) posts optimized for solder termination. Insulation material varies between PBT in the main part and PCT in the substitutes, both meeting UL94 V-0 flammability requirements.

Frequently Asked Questions (FAQ)

Q: Can D3433-6002-AR or N3433-6002RB be used as direct replacements for 3433-6405?

A: These parts share identical mating pitch, row spacing, number of positions, shrouding configuration, and operating temperature range. However, termination method differs: 3433-6405 uses wire wrap while the substitutes use solder. Assembly process compatibility must be confirmed before substitution.

Q: What is the difference between D3433-6002-AR and N3433-6002RB?

A: Both parts provide identical electrical and mechanical mating characteristics with solder termination and push-pull fastening. Primary differences are contact material (brass vs. copper alloy), insulation material (PCT in both), packaging format (tray vs. bulk), and contact finish thickness on the post. Both support 1.75A current rating.

Q: Why does the 3433-6405 have longer contact posts than the substitute parts?

A: The 3433-6405 contact post length of 0.610" (15.49mm) accommodates wire wrap termination, which requires extended post length for wrapping wire around the contact. The substitute parts with 0.112" (2.84mm) posts are optimized for solder termination on printed circuit boards.

Q: Are all three parts RoHS compliant?

A: Yes. The 3433-6405 and N3433-6002RB are RoHS Compliant. The D3433-6002-AR meets the more stringent ROHS3 specification.

Q: What is the current rating difference, and does it affect compatibility?

A: The 3433-6405 is rated for 1A, while D3433-6002-AR and N3433-6002RB are rated for 1.75A. The higher rating in the substitutes does not prevent their use in 1A applications; it indicates increased current capacity for higher-power designs.

Q: How do packaging differences affect part selection?

A: D3433-6002-AR is supplied in tray packaging, suitable for automated assembly processes. N3433-6002RB is supplied in bulk packaging, appropriate for manual assembly or high-volume operations. Packaging does not affect electrical or mechanical performance.