SL173F Equivalent & Substitute Parts

Part Overview

The SL173F is a 3-position circular connector receptacle manufactured by Switchcraft Inc. as part of the Slim-Line® SL17 series. This female socket connector features solder eyelet termination and panel mount installation with bulkhead front-side nut fastening. The part is classified as obsolete, making identification of active equivalent components essential for ongoing procurement and system maintenance.

Substiute Parts

SL173F

Switchcraft Inc.In Stock: 848SL173F Datasheet

Current PartRFQ

SL173FX

Switchcraft Inc.In Stock: 1129SL173FX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SL173F is determined by strict equivalence across the following critical parameters:

• Connector type and gender (Receptacle, Female Sockets)
• Number of positions (3)
• Shell size and insert designation (SL-3F)
• Mounting configuration (Panel Mount, Bulkhead - Front Side Nut)
• Termination method (Solder Eyelet)
• Fastening type (Threaded)
• Orientation (B)
• Shell and contact materials (Zinc Alloy shell, Copper Alloy contacts)
• Surface finishes (Nickel shell, Silver contact mating)
• Current rating (5A)
• Flammability rating (UL94 V-0)

The SL173FX meets all these criteria and is classified as an active product, making it a direct functional equivalent within the Slim-Line® SL17 series.

Parameter Comparison

Engineering Selection Recommendations

The SL173FX is the direct equivalent for the obsolete SL173F. Both components share identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: SL173F is obsolete while SL173FX is active and currently manufactured.

The SL173FX offers improved regulatory compliance, meeting ROHS3 requirements compared to the non-compliant status of the original SL173F. Both components maintain UL94 V-0 flammability certification and are suitable for audio, industrial, marine, and medical applications.

Selection of SL173FX is appropriate for new designs, system upgrades, and replacement procurement where component availability and regulatory compliance are required.

Frequently Asked Questions (FAQ)

Q: Can SL173FX directly replace SL173F in existing assemblies?

A: Yes. The SL173FX is mechanically and electrically identical to the SL173F. Both components feature the same 3-position configuration, SL-3F shell size, panel mount bulkhead installation, solder eyelet termination, and 5A current rating. Physical form factor and mating interface are equivalent.

Q: What is the primary reason to transition from SL173F to SL173FX?

A: The SL173F is classified as obsolete. The SL173FX is an active product with current manufacturing support and improved regulatory compliance (ROHS3 Compliant versus RoHS non-compliant). This ensures long-term availability and supply chain continuity.

Q: Are there packaging differences between these parts?

A: The SL173F packaging is not specified in available documentation. The SL173FX is supplied in bulk packaging. Confirm packaging requirements with your procurement specification.

Q: Do both parts meet the same regulatory standards?

A: Both components meet UL94 V-0 flammability requirements and are REACH Unaffected. The SL173FX additionally meets ROHS3 compliance standards, while the SL173F is RoHS non-compliant. Both are classified under ECCN EAR99 and HTSUS 8536.69.4020.

Q: What applications are these connectors suitable for?

A: Both the SL173F and SL173FX are specified for audio, industrial, marine, and medical applications. The 5A current rating and UL94 V-0 rating support these use cases.