3M 3793-1202 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3793-1202 is a through-hole, right-angle rectangular connector header with 10 positions at 0.100" (2.54mm) pitch. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The connector features shrouded 3-wall construction with male pins, solder termination, and latch lock/eject fastening. Identifying compatible alternatives ensures design continuity and supply chain reliability.

Substiute Parts

3793-1202

3MIn Stock: 8453793-1202 Datasheet

Current PartRFQ

D3793-5002-AR

3MIn Stock: 808D3793-5002-AR Datasheet

MFR RecommendedRFQ

N3793-5002RB

3MIn Stock: 1314N3793-5002RB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3793-1202 is determined by the following critical parameters:

• Connector Configuration: 10-position, 2-row header with 0.100" (2.54mm) pitch and row spacing
• Mounting and Orientation: Through-hole, right-angle mounting
• Contact System: Male pin contacts with solder termination
• Electrical Performance: 1.75A current rating and -55°C ~ 105°C operating temperature range
• Mechanical Compatibility: Shrouded construction with keying slot and mounting flange

The substitute parts D3793-5002-AR and N3793-5002RB maintain these core parameters. Variations in shrouding wall count (3-wall vs. 4-wall), fastening type (latch lock vs. push-pull), contact material (copper alloy vs. brass), and contact finish specifications do not prevent functional substitution when mating interface geometry and electrical ratings remain equivalent.

Parameter Comparison

Engineering Selection Recommendations

D3793-5002-AR is the manufacturer-recommended substitute for the obsolete 3793-1202. This part maintains all critical electrical and mechanical parameters while offering active product status and RoHS compliance. The 4-wall shrouding provides enhanced EMI shielding compared to the original 3-wall design. Push-pull fastening replaces the latch lock mechanism. Brass contact material with reduced gold plating thickness (10.0µin vs. 30.0µin) meets current industry standards. Packaging in trays supports automated assembly processes.

N3793-5002RB provides an alternative active substitute with identical core specifications to the 3793-1202. This part retains copper alloy contact material and maintains the original 30.0µin gold plating thickness on mating contacts. Bulk packaging accommodates manual assembly and prototyping workflows. RoHS compliance and active product status ensure long-term availability. Push-pull fastening and 4-wall shrouding align with D3793-5002-AR.

Both substitutes are electrically and mechanically compatible with the original 3793-1202 for applications requiring 10-position, 2-row, 0.100" pitch header connectors with through-hole right-angle mounting and 1.75A current capacity.

Frequently Asked Questions (FAQ)

Q: Can D3793-5002-AR or N3793-5002RB directly replace the 3793-1202 in existing designs?

A: Yes. Both substitutes maintain the same connector pitch (0.100"), position count (10), row configuration (2), contact type (male pin), mounting style (through-hole right-angle), and electrical ratings (1.75A, -55°C ~ 105°C). The mating interface geometry is identical, ensuring compatibility with existing mating connectors and PCB layouts.

Q: What are the differences between D3793-5002-AR and N3793-5002RB?

A: D3793-5002-AR uses brass contacts with 10.0µin gold plating and ships in trays. N3793-5002RB uses copper alloy contacts with 30.0µin gold plating and ships in bulk. Both feature 4-wall shrouding and push-pull fastening. Contact material and plating thickness differences do not affect functional compatibility for standard applications.

Q: Why does the 3793-1202 show obsolete status?

A: The 3793-1202 has been discontinued by 3M. D3793-5002-AR and N3793-5002RB are active products that provide equivalent functionality and are recommended for new designs and production continuity.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both D3793-5002-AR and N3793-5002RB are RoHS compliant. The original 3793-1202 is RoHS non-compliant. Compliance status should be verified against specific application requirements.

Q: How do shrouding differences affect substitution?

A: The 3793-1202 features 3-wall shrouding, while both substitutes provide 4-wall shrouding. Four-wall shrouding offers improved EMI shielding and mechanical protection. This enhancement does not prevent substitution and is generally beneficial for signal integrity in noisy environments.

Q: What is the impact of fastening type changes from latch lock to push-pull?

A: The original 3793-1202 uses latch lock/eject hooks for secure mating. Both substitutes employ push-pull fastening. Push-pull mechanisms provide reliable connection and disconnection cycles. Mating connector compatibility must be confirmed for the specific application.

Q: Do packaging differences affect component performance?

A: No. D3793-5002-AR (tray packaging) and N3793-5002RB (bulk packaging) are identical components with different distribution formats. Packaging selection depends on assembly process requirements and inventory management practices.