D4FBAU Equivalent & Substitute Parts

Part Overview

The D4FBAU is a 4-position circular connector plug with female sockets manufactured by Switchcraft Inc. in the Q-G® D series. This component is designed for audio and instrumentation applications requiring panel-mount circular connectors with solder cup termination. The D4FBAU is classified as obsolete, making identification of active equivalent parts essential for ongoing procurement and system maintenance.

Substiute Parts

D4FBAU

Switchcraft Inc.In Stock: 1026D4FBAU Datasheet

Current PartRFQ

D4FBXAU

Switchcraft Inc.In Stock: 731D4FBXAU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The D4FBXAU qualifies as a direct substitute for the D4FBAU based on identical electrical and mechanical parameters. Substitution is valid when the following criteria are met:

• Connector type, position count, and shell size match exactly (Plug, Female Sockets, 4-position, XLR)
• Mounting configuration is identical (Panel Mount, Flange, Latch Lock, Keyed)
• Termination method is the same (Solder Cup)
• Electrical ratings are equivalent or exceed requirements (10A, 125VAC)
• Material specifications are identical (Stainless Steel shell, Phosphor Bronze contacts, Gold mating finish, Polyester insert)
• Application scope is compatible (Audio, Instrumentation)

The D4FBXAU maintains all functional and physical compatibility with the D4FBAU while offering improved compliance status and active product availability.

Parameter Comparison

Engineering Selection Recommendations

The D4FBXAU is the direct equivalent for the obsolete D4FBAU. Selection of the D4FBXAU is appropriate for new designs and replacement applications due to its active product status and ROHS3 compliance. Both parts share identical electrical and mechanical specifications, ensuring functional interchangeability in audio and instrumentation circuits operating at 10A and 125VAC.

The transition from D4FBAU to D4FBXAU aligns with current regulatory requirements while maintaining full compatibility with existing connector interfaces and solder cup termination processes.

Frequently Asked Questions (FAQ)

Q: Can the D4FBXAU directly replace the D4FBAU in existing assemblies?

A: Yes. The D4FBXAU is mechanically and electrically identical to the D4FBAU. Both parts feature 4-position XLR female sockets with solder cup termination, identical shell materials, contact finishes, and electrical ratings. Direct substitution is valid without circuit or mechanical redesign.

Q: What is the primary difference between these two parts?

A: The D4FBAU is obsolete, while the D4FBXAU is an active product. The D4FBXAU also carries ROHS3 compliance, whereas the D4FBAU is RoHS non-compliant. All functional parameters remain identical.

Q: Are there packaging differences between D4FBAU and D4FBXAU?

A: The D4FBAU is supplied in standard packaging, while the D4FBXAU is supplied in bulk packaging. This distinction affects procurement and inventory management but does not impact component performance or compatibility.

Q: What applications are these connectors suitable for?

A: Both parts are designed for audio and instrumentation applications. The 4-position XLR configuration with female sockets, gold-plated contacts, and 10A/125VAC ratings support professional audio signal distribution and instrumentation interconnect requirements.

Q: Are there any compliance considerations when switching from D4FBAU to D4FBXAU?

A: The D4FBXAU offers improved compliance status with ROHS3 certification. If your application or supply chain requires RoHS compliance, the D4FBXAU is the appropriate selection. Both parts maintain identical REACH and ECCN classifications.