EN3L3MCKX Equivalent & Substitute Parts

Part Overview

The EN3L3MCKX is a 3-position circular connector receptacle manufactured by Switchcraft Inc. under the EN3® series. This component features male pins with crimp termination, bayonet locking, and gold-plated mating contacts. The connector is rated for 7.5A at 250VAC/DC with IP66/IP68 ingress protection, making it suitable for general purpose, instrumentation, marine, and medical applications. As an active product with 1043 units in stock, substitutes may be required for design flexibility, supply chain optimization, or specific application requirements where alternative connector housing styles or fastening mechanisms are preferred.

Substiute Parts

EN3L3MCKX

Switchcraft Inc.In Stock: 1084EN3L3MCKX 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, TRIAD01 series) is classified as an equivalent based on the following critical parameters:

Matching Parameters:

• Number of Positions: 3
• Termination: Crimp
• Mounting Type: Free Hanging (In-Line)
• Current Rating: Compatible with 7.5A requirement
• Voltage Rating: Compatible with 250VAC/DC requirement
• Connector Category: Circular Connectors
• RoHS Status: ROHS3 Compliant
• ECCN Classification: EAR99 (identical)
• HTSUS Code: 8536.69.4020 (identical)

Functional Compatibility: Both connectors support 3-position crimp termination in free-hanging configurations with keyed orientation. The substitute part is rated for -40°C ~ 80°C operating temperature, which encompasses the EN3L3MCKX range of -40°C ~ 65°C. Both components are active products with current inventory availability.

Differences Noted: The substitute uses threaded fastening (coupling nut) versus bayonet lock on the main part. The substitute features shielding and includes backshell, coupling nut, and strain relief. Ingress protection differs (IP65 versus IP66/IP68). These differences must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the EN3L3MCKX and 1-1437719-1 are active products with ROHS3 compliance and EAR99 classification, meeting current regulatory requirements. Selection between these components should be based on the following provided specifications:

Select EN3L3MCKX when:

• Bayonet lock fastening is required
• IP66/IP68 ingress protection is mandatory
• Unshielded configuration is specified
• Operating temperature range does not exceed 65°C
• Gold contact finish is a design requirement

Select 1-1437719-1 when:

• Threaded coupling nut fastening is acceptable
• IP65 ingress protection meets application requirements
• Shielded configuration is beneficial
• Operating temperature range extends to 80°C
• Integrated backshell, coupling nut, and strain relief features are advantageous

Both components support 3-position crimp termination and free-hanging in-line mounting. Inventory availability is adequate for both parts.

Frequently Asked Questions (FAQ)

Q: Can 1-1437719-1 directly replace EN3L3MCKX in existing designs?

A: Direct replacement requires verification of fastening type compatibility. The EN3L3MCKX uses bayonet lock while 1-1437719-1 uses threaded coupling. Mechanical mating interfaces must be confirmed before substitution.

Q: What is the significance of the ingress protection rating difference?

A: EN3L3MCKX provides IP66/IP68 protection (dust tight, waterproof), while 1-1437719-1 provides IP65 protection (dust tight, water resistant). Applications requiring full waterproof sealing must use EN3L3MCKX.

Q: Does the shielding difference affect electrical performance?

A: EN3L3MCKX is unshielded; 1-1437719-1 is shielded. Shielding may be required in high-noise electromagnetic environments. Application-specific EMI/RFI requirements determine necessity.

Q: Are the crimp contact specifications compatible between these parts?

A: Both use crimp termination. The substitute specifies 1.0mm contact size. Compatibility of crimp contacts requires verification against specific wire gauge and contact specifications for your application.

Q: What is the temperature operating range difference?

A: EN3L3MCKX operates -40°C to 65°C; 1-1437719-1 operates -40°C to 80°C. The substitute supports extended high-temperature operation. Applications limited to 65°C maximum can use either part.

Q: Are both parts suitable for marine and medical applications?

A: EN3L3MCKX is specified for marine and medical applications. 1-1437719-1 application suitability is not provided in available data. Verify compliance requirements for your specific application before substitution.