EN3C3MCX Equivalent & Substitute Parts Reference

Part Overview

The EN3C3MCX is a 3-position circular connector plug manufactured by Switchcraft Inc., featuring male pins with crimp termination and bayonet lock fastening. This connector is designed for general purpose, instrumentation, marine, and medical applications requiring IP66/IP68 ingress protection and gold-plated mating contacts. The part is currently active in production with 1097 units in stock. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and environmental ratings can be maintained across different manufacturer offerings.

Substiute Parts

EN3C3MCX

Switchcraft Inc.In Stock: 1132EN3C3MCX Datasheet

Current PartRFQ

1-1437719-1

TE Connectivity AMP ConnectorsIn Stock: 12761-1437719-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 1-1437719-1 (TE Connectivity AMP Connectors) is identified based on the following alignment criteria:

Matching Parameters:

• Number of Positions: 3
• Connector Type: Plug Housing for Male Pins
• Termination: Crimp
• Mounting Type: Free Hanging (In-Line)
• Orientation: Keyed
• RoHS Status: ROHS3 Compliant
• HTSUS Code: 8536.69.4020 (identical classification)

Critical Differences:

• Fastening Type: EN3C3MCX uses Bayonet Lock; 1-1437719-1 uses Threaded fastening
• Ingress Protection: EN3C3MCX provides IP66/IP68; 1-1437719-1 provides IP65
• Operating Temperature Range: EN3C3MCX operates -40°C ~ 65°C; 1-1437719-1 operates -40°C ~ 80°C
• Shielding: EN3C3MCX is Unshielded; 1-1437719-1 is Shielded
• Material Flammability: EN3C3MCX is UL94 V-0; 1-1437719-1 is UL94 V-2

Parameter Comparison

Engineering Selection Recommendations

Both the EN3C3MCX and 1-1437719-1 maintain ROHS3 compliance and active production status. Selection between these parts depends on application-specific requirements:

The EN3C3MCX is suitable for applications requiring bayonet lock fastening, IP66/IP68 waterproof sealing, and UL94 V-0 flammability rating. This configuration is appropriate for marine and medical environments with stringent moisture ingress prevention.

The 1-1437719-1 is suitable for applications where threaded fastening is acceptable, IP65 dust and water resistance is sufficient, and higher operating temperature capability (up to 80°C) is beneficial. The shielded design provides electromagnetic interference mitigation not present in the EN3C3MCX.

Direct substitution requires mechanical interface compatibility verification due to fastening type differences (bayonet versus threaded) and environmental rating differences (IP66/IP68 versus IP65).

Frequently Asked Questions (FAQ)

Q: Can 1-1437719-1 directly replace EN3C3MCX in existing assemblies?

A: Direct mechanical replacement is not possible without interface modification. The EN3C3MCX uses bayonet lock fastening while 1-1437719-1 uses threaded fastening. Mating connector compatibility must be verified before substitution.

Q: What is the primary difference in environmental protection between these parts?

A: The EN3C3MCX provides IP66/IP68 rating (dust tight, waterproof under immersion), while 1-1437719-1 provides IP65 rating (dust tight, water resistant). Applications requiring submersion capability must use EN3C3MCX.

Q: Are both parts suitable for marine applications?

A: Both parts are listed for marine applications. However, EN3C3MCX offers superior waterproof protection (IP68) compared to 1-1437719-1 (IP65). Application-specific moisture exposure requirements determine appropriate selection.

Q: What is the significance of the flammability rating difference?

A: EN3C3MCX carries UL94 V-0 rating (self-extinguishing, no flaming drips), while 1-1437719-1 carries UL94 V-2 rating (self-extinguishing, limited flaming drips). Applications in confined spaces or with strict fire safety requirements should specify UL94 V-0.

Q: Does 1-1437719-1 include contacts?

A: No. The 1-1437719-1 is a plug housing only; contacts are not included and must be sourced separately. The EN3C3MCX includes male pins with crimp termination.

Q: What is the operating temperature advantage of 1-1437719-1?

A: The 1-1437719-1 operates to 80°C maximum, compared to EN3C3MCX at 65°C maximum. This 15°C additional capability may be relevant for high-ambient or self-heating applications.

Q: Are both parts RoHS compliant?

A: Yes. Both EN3C3MCX and 1-1437719-1 are ROHS3 compliant and suitable for applications with RoHS requirements.