3M 3793-2003 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3793-2003 is a shrouded rectangular connector header designed for through-hole mounting in board-to-board or cable applications. This 10-position, 2-row connector operates across -55°C to 105°C and features gold-plated mating contacts with tin-lead post plating. The part is currently obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

3793-2003

3MIn Stock: 10013793-2003 Datasheet

Current PartRFQ

D3793-6002-AR

3MIn Stock: 1643D3793-6002-AR Datasheet

MFR RecommendedRFQ

N3793-6002RB

3MIn Stock: 1903N3793-6002RB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3793-2003 is determined by the following critical parameters:

• Connector geometry: 10-position, 2-row configuration with 0.100" (2.54mm) pitch and row spacing
• Contact system: Male pin headers with gold-plated mating surfaces
• Mounting interface: Through-hole solder termination
• Environmental rating: Operating temperature range of -55°C to 105°C
• Electrical performance: Current-carrying capacity and contact material compatibility
• Mechanical compatibility: Shrouding design and overall contact dimensions

The identified substitutes D3793-6002-AR and N3793-6002RB maintain these core parameters while offering improvements in product status, regulatory compliance, and current rating capacity.

Parameter Comparison

Engineering Selection Recommendations

For Active Product Development: Both D3793-6002-AR and N3793-6002RB are recommended as primary substitutes for the obsolete 3793-2003. Both parts maintain full geometric and electrical compatibility while offering active product status and improved regulatory compliance.

D3793-6002-AR is designated as the manufacturer-recommended substitute. This part carries ROHS3 compliance and is supplied in tray packaging. The increased current rating of 1.75A provides additional design margin over the original 1A specification.

N3793-6002RB provides an alternative with equivalent electrical performance and RoHS compliance. This part is supplied in bulk packaging and maintains the original series designation (3000 series) while offering the same 1.75A current rating.

For Legacy System Support: When replacing failed 3793-2003 units in existing installations, either substitute maintains mechanical and electrical compatibility. The 4-wall shrouding design in both substitutes provides enhanced mechanical retention compared to the original 3-wall design.

Regulatory Considerations: The original 3793-2003 is RoHS non-compliant and REACH-affected. Both substitutes resolve these compliance gaps, with D3793-6002-AR offering ROHS3 certification and N3793-6002RB offering standard RoHS compliance. N3793-6002RB is REACH-unaffected, providing additional regulatory clarity for certain applications.

Frequently Asked Questions (FAQ)

Q: Are D3793-6002-AR and N3793-6002RB mechanically interchangeable with 3793-2003?

A: Yes. Both substitutes maintain the same 10-position, 2-row configuration with 0.100" (2.54mm) pitch and row spacing. The contact mating length of 0.240" (6.10mm) is identical. The 4-wall shrouding in the substitutes provides enhanced mechanical retention compared to the original 3-wall design, but does not prevent interchangeability.

Q: What is the difference between D3793-6002-AR and N3793-6002RB?

A: The primary differences are packaging format and regulatory status. D3793-6002-AR is supplied in tray packaging and carries ROHS3 compliance. N3793-6002RB is supplied in bulk packaging and carries standard RoHS compliance with REACH-unaffected status. Both parts have identical electrical ratings (1.75A) and operating temperature range (-55°C to 105°C).

Q: Can I use these substitutes in applications requiring the original 1A current rating?

A: Yes. Both substitutes are rated for 1.75A, which exceeds the original 1A specification. This provides additional design margin and does not create compatibility issues in applications designed for 1A operation.

Q: What is the significance of the shrouding change from 3-wall to 4-wall?

A: The 4-wall shrouding in both substitutes provides improved mechanical retention and alignment during mating operations. This is a design enhancement that does not affect electrical performance or dimensional compatibility with mating connectors designed for the original 3-wall shrouding.

Q: Are there any temperature or environmental limitations when substituting these parts?

A: No. All three parts maintain the same operating temperature range of -55°C to 105°C and UL94 V-0 flammability rating. Moisture sensitivity level remains at MSL 1 (Unlimited) for all parts.

Q: Which substitute should I select for new designs?

A: D3793-6002-AR is the manufacturer-recommended substitute and is the preferred choice for new designs. It provides ROHS3 compliance and is actively produced by 3M.