3M 3433-5502 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3433-5502 is a through-hole, right-angle rectangular connector header with 50 positions at 0.100" (2.54mm) pitch. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications. The connector features shrouded 4-wall construction with solder termination and latch lock/eject fastening, suitable for board-to-board or cable interconnection in industrial and commercial electronics.

Substiute Parts

3433-5502

3MIn Stock: 10843433-5502 Datasheet

Current PartRFQ

D3433-5002-AR

3MIn Stock: 896D3433-5002-AR Datasheet

MFR RecommendedRFQ

N3433-5002RB

3MIn Stock: 1104N3433-5002RB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3433-5502 is determined by strict equivalence across the following critical parameters:

• Connector type (Header), contact type (Male Pin), and position count (50 positions, 2 rows)
• Mating pitch (0.100" / 2.54mm) and row spacing (0.100" / 2.54mm)
• Mounting configuration (Through Hole, Right Angle) and shrouding (Shrouded - 4 Wall)
• Contact geometry (Square shape, 0.240" mating length, 0.112" post length)
• Electrical performance (1.75A current rating, -55°C ~ 105°C operating range)
• Termination method (Solder) and material flammability (UL94 V-0)

The two identified substitutes—D3433-5002-AR and N3433-5002RB—maintain these core parameters while differing in fastening type, contact material composition, contact finish specifications, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both D3433-5002-AR and N3433-5002RB are active product alternatives to the obsolete 3433-5502, with selection based on regulatory and compliance requirements:

D3433-5002-AR is ROHS3 compliant and represents the most current regulatory alignment for new designs. This part operates within the D3000 series and employs push-pull fastening. The contact finish thickness on the post is reduced to 39.4µin (1.00µm) compared to the original 200.0µin specification, and the contact material is brass rather than copper alloy. The mating contact finish thickness is also reduced to 10.0µin (0.25µm). This configuration is suitable for applications requiring modern environmental compliance standards.

N3433-5002RB maintains RoHS compliance and preserves the original series designation (3000) with identical contact material (copper alloy) and post finish thickness (200.0µin / 5.08µm) specifications. This part also employs push-pull fastening and is available in bulk packaging. This configuration provides closer electrical and material equivalence to the original part while meeting RoHS requirements.

Both substitutes maintain identical mechanical fit, electrical performance, and thermal operating range as the original component.

Frequently Asked Questions (FAQ)

Q: Can D3433-5002-AR and N3433-5002RB be used interchangeably with the 3433-5502?

A: Both parts maintain identical connector geometry, pitch, position count, mounting configuration, and electrical ratings. The primary differences are fastening type (push-pull versus latch lock/eject), contact material composition, contact finish thickness specifications, and regulatory compliance status. Mechanical and electrical interchangeability is confirmed for the specified parameters.

Q: What is the difference between the two substitute parts?

A: D3433-5002-AR belongs to the D3000 series with ROHS3 compliance and reduced contact finish thickness specifications. N3433-5002RB remains in the 3000 series with standard RoHS compliance and maintains the original contact finish thickness on the post (200.0µin). Both employ push-pull fastening instead of the original latch lock/eject mechanism.

Q: Does the change from latch lock/eject to push-pull fastening affect compatibility?

A: The fastening type determines the mating connector interface. Designs using the original 3433-5502 with latch lock/eject fastening require a compatible receptacle connector. Substitution with push-pull fastening requires corresponding receptacle connector changes.

Q: What is the significance of contact finish thickness differences?

A: Contact finish thickness affects durability and wear resistance in mating cycles. The original 3433-5502 specifies 30.0µin (0.76µm) mating finish and 200.0µin (5.08µm) post finish. D3433-5002-AR reduces both specifications to 10.0µin (0.25µm) and 39.4µin (1.00µm) respectively. N3433-5002RB maintains the original post finish thickness while preserving the mating finish specification.

Q: Are there packaging considerations for these substitutes?

A: D3433-5002-AR is supplied in tray packaging, while N3433-5002RB is supplied in bulk packaging. The original part packaging is not specified. Packaging selection may affect handling, storage, and procurement workflows.

Q: What regulatory compliance should be considered for new designs?

A: The original 3433-5502 is RoHS non-compliant. D3433-5002-AR meets ROHS3 compliance, representing the most current environmental standard. N3433-5002RB meets RoHS compliance. New designs should specify D3433-5002-AR for alignment with current regulatory requirements.