3M 3793-2502 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3793-2502 is a through-hole rectangular connector header with 10 positions arranged in 2 rows 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 design with 3-wall construction, gold-plated mating contacts, and tin-lead post termination. Substitution is necessary to ensure supply chain continuity and access to components with active product status and improved compliance certifications.

Substiute Parts

3793-2502

3MIn Stock: 9233793-2502 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 3793-2502 is determined by the following critical parameters that must remain constant:

• Connector type: Header
• Contact type: Male Pin
• Number of positions: 10
• Number of rows: 2
• Pitch - mating: 0.100" (2.54mm)
• Row spacing - mating: 0.100" (2.54mm)
• Mounting type: Through Hole
• Termination: Solder
• Contact shape: Square
• Operating temperature range: -55°C ~ 105°C
• Material flammability rating: UL94 V-0
• Insulation material: Polycyclohexylenedimethylene Terephthalate (PCT), Polyester, Glass Filled
• Moisture sensitivity level: 1 (Unlimited)

The identified substitute parts D3793-6002-AR and N3793-6002RB maintain all critical parameters while offering improvements in shrouding design (4-wall vs. 3-wall), fastening mechanism (Push-Pull vs. Latch Lock/Eject Hooks), current rating capability, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both D3793-6002-AR and N3793-6002RB are active product alternatives to the obsolete 3793-2502. Selection between these substitutes depends on specific application requirements and compliance mandates.

D3793-6002-AR is designated as the manufacturer-recommended substitute. This part carries ROHS3 compliance certification and is packaged in trays, suitable for automated assembly environments. The increased current rating of 1.75A provides additional margin over the original 1A specification. The 4-wall shrouding offers enhanced mechanical protection compared to the 3-wall design of the original part.

N3793-6002RB maintains the original series designation (3000) and offers RoHS compliance with bulk packaging. This part also features 4-wall shrouding and 1.75A current rating. The copper alloy contact material matches the original specification more closely than the brass material used in D3793-6002-AR.

Both substitutes eliminate the tin-lead post finish of the original part in favor of tin-only termination, aligning with lead-free manufacturing standards. The push-pull fastening mechanism in both substitutes replaces the latch lock design of the original, affecting connector engagement characteristics.

Frequently Asked Questions (FAQ)

Q: Can D3793-6002-AR and N3793-6002RB be used interchangeably with 3793-2502?

A: Both parts maintain the critical electrical and mechanical parameters required for functional compatibility: 10-position, 2-row configuration at 0.100" (2.54mm) pitch, through-hole solder termination, and identical contact dimensions. The primary differences are in fastening mechanism (push-pull vs. latch lock), shrouding enhancement (4-wall vs. 3-wall), and regulatory compliance status. Application-specific requirements regarding connector engagement method must be evaluated.

Q: What is the significance of the 4-wall shrouding in the substitute parts?

A: The 4-wall shrouding in D3793-6002-AR and N3793-6002RB provides increased mechanical protection and improved mating alignment compared to the 3-wall design of 3793-2502. This enhancement does not affect electrical performance but may impact physical board layout and connector accessibility.

Q: How do the fastening mechanisms differ between the original and substitute parts?

A: The 3793-2502 uses latch lock/eject hooks with short engagement, while D3793-6002-AR and N3793-6002RB employ push-pull fastening. These represent different connector engagement and disengagement methods. The push-pull mechanism may require different mating connector designs or cable assembly specifications.

Q: What is the impact of the increased current rating in the substitute parts?

A: Both D3793-6002-AR and N3793-6002RB are rated for 1.75A per contact, compared to 1A in the original 3793-2502. This represents a 75% increase in current-carrying capacity and provides additional design margin for applications operating near the original specification limit.

Q: Are there compliance differences between the substitute parts?

A: D3793-6002-AR carries ROHS3 certification, while N3793-6002RB carries standard RoHS compliance. Both eliminate the tin-lead post finish of the original part. For applications requiring specific regulatory compliance documentation, D3793-6002-AR provides the most current certification status.

Q: How do the contact materials differ?

A: The original 3793-2502 uses copper alloy contacts. D3793-6002-AR substitutes brass contacts, while N3793-6002RB maintains copper alloy. Both materials are compatible with the gold-plated mating surface and tin post finish. Contact material selection may affect long-term reliability in specific environmental conditions.

Q: What packaging options are available for the substitute parts?

A: D3793-6002-AR is supplied in tray packaging, suitable for automated pick-and-place assembly. N3793-6002RB is supplied in bulk packaging. Packaging selection depends on production volume and assembly methodology.