Switchcraft P3FB Circular Connector - Equivalent & Substitute Parts

Part Overview

The Switchcraft P3FB is a 3-position circular connector plug with female sockets and solder cup termination, designed for free-hanging in-line applications. This connector belongs to the Q-G® P series and features a zinc die-cast black shell with keyed orientation and latch lock fastening. The P3FB is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and component procurement.

Substiute Parts

P3FB

Switchcraft Inc.In Stock: 768P3FB Datasheet

Current PartRFQ

A3F

Switchcraft Inc.In Stock: 2017A3F Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The Switchcraft A3F qualifies as a functional substitute for the P3FB based on the following critical parameters:

Matching Parameters:

• Connector Type: Plug, Female Sockets
• Number of Positions: 3
• Shell Size - Insert: XLR
• Mounting Type: Free Hanging (In-Line)
• Termination: Solder Cup
• Fastening Type: Latch Lock
• Orientation: Keyed
• Primary Material: Metal

These parameters define the core mechanical and electrical interface compatibility. Both connectors maintain identical pin configuration, mating geometry, and mounting characteristics, enabling direct substitution in applications requiring 3-position XLR female solder cup connectors with keyed orientation and latch lock fastening.

Parameter Comparison

Engineering Selection Recommendations

The Switchcraft A3F serves as the primary substitute for the obsolete P3FB. Selection between these components should be based on the following criteria:

P3FB Selection:

• Existing systems requiring exact original component replacement
• Applications where black shell finish is a specified requirement
• Environments where RoHS non-compliance is acceptable

A3F Selection:

• New designs and system upgrades
• Applications requiring RoHS3 compliance
• Systems requiring documented electrical ratings (15A at 125VAC)
• Installations benefiting from enhanced features including backshell, cable clamp, ground, and strain relief
• Active production environments where component availability is critical

The A3F is manufactured by the same supplier (Switchcraft Inc.) and maintains mechanical and functional compatibility with the P3FB across all critical interface parameters. The A3F's active product status ensures long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the A3F directly replace the P3FB in existing installations?

A: Yes. Both connectors share identical core specifications: 3-position XLR female solder cup configuration, keyed orientation, latch lock fastening, and free-hanging in-line mounting. Mechanical and electrical interfaces are fully compatible.

Q: What are the primary differences between P3FB and A3F?

A: Shell material differs (zinc die cast vs. stainless steel), resulting in different finish options (black vs. silver). The A3F includes additional features (backshell, cable clamp, ground, strain relief) and provides documented electrical ratings (15A, 125VAC). The A3F is RoHS3 compliant while the P3FB is not.

Q: Why is the P3FB classified as obsolete?

A: The P3FB belongs to an older product series (Q-G® P). Switchcraft has transitioned to the Q-G® A series, represented by the A3F, which offers improved specifications and regulatory compliance.

Q: Are there packaging differences between P3FB and A3F?

A: The P3FB is supplied in standard packaging, while the A3F is supplied in bulk packaging. Both are available as new original stock.

Q: Does the color difference (black vs. silver) affect electrical performance?

A: No. Color and shell finish are cosmetic attributes. Electrical performance and mechanical compatibility remain unchanged.

Q: What applications are suitable for the A3F?

A: The A3F is specified for audio and instrumentation applications. Its 15A current rating and 125VAC voltage rating define the electrical operating envelope.

Q: Is the A3F suitable for new product designs?

A: Yes. The A3F's active product status, RoHS3 compliance, and documented electrical specifications make it the appropriate choice for new designs requiring 3-position XLR female solder cup connectors.