SL174M Equivalent & Substitute Parts

Part Overview

The SL174M is a 4-position circular connector receptacle with male pins manufactured by Switchcraft Inc. as part of the Slim-Line® SL17 series. This component is designed for panel mount applications with bulkhead front-side nut fastening and solder cup termination. The part is currently obsolete, making identification of compatible alternatives essential for ongoing system maintenance and component procurement.

Substiute Parts

SL174M

Switchcraft Inc.In Stock: 979SL174M Datasheet

Current PartRFQ

SL174MX

Switchcraft Inc.In Stock: 930SL174MX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SL174MX qualifies as a direct substitute for the SL174M based on the following critical parameters:

• Identical connector type (Receptacle, Male Pins)
• Matching position count (4 positions)
• Same shell size and insert designation (SL-4M)
• Identical series classification (Slim-Line® SL17)
• Matching mounting configuration (Panel Mount, Bulkhead - Front Side Nut)
• Same termination method (Solder Cup)
• Identical shell material, finish, and contact specifications
• Equivalent current rating (5A)
• Matching flammability certification (UL94 V-0)

The primary distinction between these parts is product status and regulatory compliance. The SL174MX is an active product with ROHS3 compliance, whereas the SL174M is obsolete and RoHS non-compliant.

Parameter Comparison

Engineering Selection Recommendations

The SL174MX is the direct equivalent for the obsolete SL174M. Selection of the SL174MX is supported by:

• Identical electrical and mechanical specifications across all functional parameters
• Active product status ensuring ongoing availability and supply chain continuity
• ROHS3 compliance meeting current regulatory requirements for new designs and procurement
• Equivalent UL94 V-0 flammability certification maintaining safety standards
• Bulk packaging availability for production quantities

For applications requiring the SL174M, transition to the SL174MX eliminates obsolescence risk while maintaining full functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the SL174MX directly replace the SL174M in existing assemblies?

A: Yes. The SL174MX is mechanically and electrically identical to the SL174M. All mounting, termination, and electrical parameters are equivalent, enabling direct substitution without design modification.

Q: What is the primary reason to transition from SL174M to SL174MX?

A: The SL174M is obsolete, creating supply chain risk. The SL174MX is an active product from the same manufacturer with identical specifications, ensuring long-term availability and compliance with current regulatory standards.

Q: Are there any compliance differences between these parts?

A: Yes. The SL174MX is ROHS3 compliant, while the SL174M is RoHS non-compliant. Both maintain UL94 V-0 flammability certification. For new designs or procurement subject to RoHS requirements, the SL174MX is the appropriate selection.

Q: Does packaging differ between these parts?

A: The SL174M packaging is unspecified in available documentation. The SL174MX is supplied in bulk packaging, suitable for production quantities.

Q: Are the electrical ratings identical?

A: Yes. Both parts carry a 5A current rating and are unshielded with identical contact and shell materials and finishes.