Switchcraft 3501FP RCA Phono Jack Mono Connector - Equivalent & Substitute Parts

Part Overview

The Switchcraft 3501FP is a panel-mount RCA phono jack connector designed for mono audio applications with a 3.20mm ID and 9.00mm OD mating diameter. This connector features solder eyelet termination, nickel-plated brass contacts, and includes mounting hardware (nut and washer). The 3501FP is classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications.

Substiute Parts

3501FP

Switchcraft Inc.In Stock: 9973501FP Datasheet

Current PartRFQ

3501FPX

Switchcraft Inc.In Stock: 43983501FPX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3501FP is determined by strict equivalence across the following critical parameters:

• Connector Type: Phono (RCA) Jack
• Gender: Female
• Signal Lines: Mono
• Mating Diameter: 3.20mm ID, 9.00mm OD (RCA)
• Number of Contacts: 2 Conductors, 2 Contacts
• Mounting Type: Panel Mount
• Termination: Solder Eyelet(s)
• Shielding: Unshielded
• Contact Material: Brass with Nickel Plating
• Body Material: Brass
• Thread Size: 1/4"-32

The substitute part 3501FPX meets all these criteria, establishing direct functional and mechanical compatibility with the 3501FP.

Parameter Comparison

Engineering Selection Recommendations

The 3501FPX is the direct active equivalent for the obsolete 3501FP. Both parts are manufactured by Switchcraft Inc. and share identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status and regulatory compliance:

The 3501FP is classified as obsolete, whereas the 3501FPX maintains active product status with significantly higher inventory availability (4356 units versus 972 units). The 3501FPX achieves ROHS3 compliance, whereas the 3501FP is RoHS non-compliant. For new designs and ongoing production requiring regulatory compliance, the 3501FPX is the appropriate selection. For legacy system maintenance where RoHS compliance is not a requirement, either part provides equivalent functionality.

Frequently Asked Questions (FAQ)

Q: Can the 3501FPX directly replace the 3501FP in existing applications?

A: Yes. The 3501FPX is mechanically and electrically identical to the 3501FP. Both connectors feature the same 3.20mm ID, 9.00mm OD RCA mating diameter, 1/4"-32 thread size, panel hole size of 0.281" (7.14mm), solder eyelet termination, and nickel-plated brass contact construction. Direct substitution is supported without circuit or mechanical redesign.

Q: What is the primary reason to transition from the 3501FP to the 3501FPX?

A: The 3501FP is obsolete, while the 3501FPX is an active product with superior inventory availability. Additionally, the 3501FPX achieves ROHS3 compliance, whereas the 3501FP does not. For applications requiring regulatory compliance or long-term supply chain stability, the 3501FPX is the recommended selection.

Q: Are there packaging differences between these parts?

A: The 3501FP is supplied with unspecified packaging, while the 3501FPX is supplied in bulk packaging. Both include identical hardware: one connector, one nut, and one washer per unit.

Q: Do these connectors require any special handling or installation considerations?

A: Both the 3501FP and 3501FPX are standard panel-mount RCA jacks with solder eyelet termination. Installation follows conventional practices for panel-mount connectors: secure the connector through the panel hole using the provided nut and washer, then solder the eyelet contacts to the circuit board. No special handling is required.

Q: Are there any compliance or certification differences?

A: The 3501FPX is ROHS3 compliant and REACH unaffected. The 3501FP is RoHS non-compliant but also REACH unaffected. Both parts carry the same ECCN (EAR99) and HTSUS (8536.69.4030) classifications. For applications subject to RoHS regulations, the 3501FPX is the appropriate choice.