EN3L4F Circular Connector Receptacle - Equivalent & Substitute Parts

Part Overview

The EN3L4F is a 4-position circular connector receptacle manufactured by Switchcraft Inc., featuring female sockets with solder cup termination and bayonet lock fastening. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing procurement and system maintenance. The EN3L4FX serves as the direct active substitute, maintaining identical electrical and mechanical specifications while offering improved availability.

Substiute Parts

EN3L4F

Switchcraft Inc.In Stock: 1025EN3L4F Datasheet

Current PartRFQ

EN3L4FX

Switchcraft Inc.In Stock: 2086EN3L4FX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The EN3L4FX qualifies as a direct substitute for the EN3L4F based on strict parameter equivalence across all critical electrical and mechanical specifications. Substitution validity is determined by the following parameters:

• Connector Type & Position Count: Both parts are 4-position receptacles with female sockets
• Termination Method: Identical solder cup termination
• Fastening Mechanism: Bayonet lock fastening in both parts
• Electrical Ratings: Matching 7.5A current and 250VAC/DC voltage specifications
• Environmental Protection: Both rated IP66/IP68
• Contact Material & Finish: Copper alloy with gold plating in both parts
• Operating Temperature: Identical -40°C ~ 65°C range
• Compliance Standards: Both ROHS3 compliant and REACH unaffected

The primary distinction is product status: EN3L4F is obsolete while EN3L4FX is active, with EN3L4FX available in bulk packaging and higher inventory levels.

Parameter Comparison

Engineering Selection Recommendations

The EN3L4FX is the appropriate selection for new designs and procurement activities. As an active product with identical electrical and mechanical specifications to the obsolete EN3L4F, it provides direct functional equivalence without design modification. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial, marine, medical, and instrumentation applications.

The EN3L4FX offers superior supply chain continuity with 2070 units in stock compared to the EN3L4F's 960 units, and is available in bulk packaging suitable for production environments.

Frequently Asked Questions (FAQ)

Q: Can EN3L4FX be used as a direct replacement for EN3L4F in existing assemblies?

A: Yes. The EN3L4FX maintains identical electrical ratings (7.5A, 250VAC/DC), mechanical dimensions, termination method (solder cup), fastening type (bayonet lock), and environmental protection (IP66/IP68). No circuit modifications or mechanical redesign is required.

Q: What is the difference between EN3L4F and EN3L4FX?

A: The primary difference is product status and packaging. EN3L4F is obsolete; EN3L4FX is active. EN3L4FX is supplied in bulk packaging, while EN3L4F packaging is unspecified. All electrical and mechanical parameters are identical.

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

A: Yes. Both EN3L4F and EN3L4FX are rated for general purpose, instrumentation, marine, and medical applications with IP66/IP68 ingress protection and UL94 V-0 flammability rating.

Q: What is the cable opening specification for these connectors?

A: Both parts accommodate cable diameters of 0.160" to 0.265" (4.06mm to 6.73mm).

Q: Are these connectors RoHS compliant?

A: Yes. Both EN3L4F and EN3L4FX are ROHS3 compliant and REACH unaffected.