3M 3433-6205 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3433-6205 is a through-hole rectangular connector header with 50 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This component features shrouded 4-wall construction with wire wrap 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

3433-6205

3MIn Stock: 10593433-6205 Datasheet

Current PartRFQ

D3433-6002-AR

3MIn Stock: 1293D3433-6002-AR Datasheet

MFR RecommendedRFQ

N3433-6002RB

3MIn Stock: 1326N3433-6002RB Datasheet

MFR RecommendedRFQ

CWN-571-50-0021

CW IndustriesIn Stock: 714CWN-571-50-0021 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3433-6205 is determined by the following core parameters: connector type (header), contact type (male pin), number of positions (50), number of rows (2), mating pitch (0.100"), row spacing (0.100"), shrouding configuration (shrouded 4-wall), and mounting type (through hole). All identified substitute parts maintain these critical parameters.

Variations in termination method (wire wrap versus solder), fastening type (latch lock/eject hooks versus push-pull), contact material composition, and contact finish specifications are permitted within the substitution framework, provided the electrical and mechanical interface dimensions remain compatible with the original design.

The three substitute parts identified—D3433-6002-AR, N3433-6002RB, and CWN-571-50-0021—each satisfy the core dimensional and functional requirements while offering different termination and material options suitable for various application contexts.

Parameter Comparison

Engineering Selection Recommendations

D3433-6002-AR (3M, Active): This part maintains 3M manufacturing continuity and is actively produced. It features solder termination with push-pull fastening, reducing overall contact post length to 0.112" (2.84mm) compared to the original 0.610" (15.49mm). Current rating increases to 1.75A. ROHS3 compliance is confirmed. Selection is appropriate for new designs requiring solder-based assembly and higher current capacity within the same connector family.

N3433-6002RB (3M, Active): This alternative retains the original series designation (3000) and maintains wire wrap termination compatibility with the 3433-6205, though fastening changes from latch lock to push-pull. Contact post length is reduced to 0.112" (2.84mm). Current rating increases to 1.75A. RoHS compliance is confirmed. This option provides the closest functional alignment for applications requiring wire wrap termination while offering improved current handling.

CWN-571-50-0021 (CW Industries, Active): This cross-manufacturer substitute maintains wire wrap termination and latch lock/eject hook fastening identical to the original part, preserving the contact post length of 0.610" (15.49mm). Operating temperature range extends to 125°C. Contact shape differs (circular versus square), and contact material is phosphor bronze. ROHS3 compliance is confirmed. Selection is suitable for applications requiring exact termination and fastening method preservation with extended temperature capability.

Frequently Asked Questions (FAQ)

Q: Can D3433-6002-AR be used as a direct replacement for 3433-6205?

A: D3433-6002-AR is mechanically and electrically compatible at the mating interface (50 positions, 2.54mm pitch, shrouded 4-wall configuration). However, termination changes from wire wrap to solder, and contact post length reduces from 0.610" to 0.112". PCB layout and assembly process modifications are required.

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

A: Both parts use solder termination and push-pull fastening with identical contact post length (0.112"). N3433-6002RB retains the original 3000 series designation and copper alloy contact material, while D3433-6002-AR uses the D3000 series with brass contacts. Contact finish thickness on the post differs: N3433-6002RB specifies 200.0µin (5.08µm) versus D3433-6002-AR at 39.4µin (1.00µm).

Q: Is CWN-571-50-0021 suitable for applications requiring wire wrap termination?

A: Yes. CWN-571-50-0021 maintains wire wrap termination and latch lock/eject hook fastening identical to the original 3433-6205. Contact post length remains 0.610" (15.49mm), preserving the original assembly interface. Contact shape is circular rather than square, and operating temperature extends to 125°C.

Q: What compliance certifications apply to all substitute parts?

A: All three substitute parts maintain UL94 V-0 material flammability rating and Moisture Sensitivity Level 1 (Unlimited). D3433-6002-AR and CWN-571-50-0021 are ROHS3 compliant. N3433-6002RB is RoHS compliant with REACH Unaffected status.

Q: How does current rating affect part selection?

A: The original 3433-6205 is rated at 1A. D3433-6002-AR and N3433-6002RB both increase current capacity to 1.75A due to reduced contact post length and optimized contact geometry. CWN-571-50-0021 maintains the original 1A rating. Selection depends on circuit current requirements and thermal management considerations.

Q: Are there packaging differences between substitute parts?

A: D3433-6002-AR is supplied in Tray packaging. N3433-6002RB is supplied in Bulk packaging. CWN-571-50-0021 packaging is not specified. Packaging selection affects procurement, handling, and storage procedures but does not impact electrical or mechanical compatibility.