Switchcraft 855 Barrel Connector - Equivalent & Substitute Parts

Part Overview

The Switchcraft 855 is a 2.46mm ID mono phone plug connector featuring solder eyelet termination, designed for free-hanging in-line applications. This connector is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations. The 855 series provides a compact solution for mono audio signal transmission with dual conductor configuration.

Substiute Parts

855

Switchcraft Inc.In Stock: 768855 Datasheet

Current PartRFQ

855X

Switchcraft Inc.In Stock: 962855X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Switchcraft 855 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Mating Diameter: 2.46mm ID (0.097")
• Connector Type: Phone Plug
• Signal Configuration: Mono
• Number of Conductors: 2 Conductors, 2 Contacts
• Termination Type: Solder Eyelet(s)
• Mounting Type: Free Hanging (In-Line)
• Operating Temperature Range: -20°C ~ 65°C
• Current Rating: 125 mA
• Cable Opening: 0.125" (3.18mm)
• Housing Material: Aluminum
• Contact Material: Brass
• Body Material: Copper Alloy

The Switchcraft 855X qualifies as a direct substitute, maintaining identical mechanical and electrical specifications across all critical parameters while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The Switchcraft 855X serves as the active production equivalent for the obsolete Switchcraft 855. Selection of the 855X is supported by the following factors:

Product Status: The 855 is classified as obsolete, while the 855X maintains active product status with current manufacturing and availability.

Compliance Certifications: The 855X achieves ROHS3 compliance, whereas the original 855 is RoHS non-compliant. This compliance improvement aligns with current regulatory requirements for electronic component procurement.

Mechanical and Electrical Compatibility: The 855X maintains identical specifications across all critical functional parameters including mating diameter, connector type, signal configuration, conductor count, termination method, mounting configuration, operating temperature range, and current rating.

Voltage Rating Consideration: The 855X operates at a rated voltage of 125VAC compared to the 855's 500VAC rating. Applications requiring the higher voltage specification of the original part require evaluation against the 855X's reduced voltage rating.

Contact Plating Difference: The 855X features nickel plating versus the silver plating of the original 855. This material difference may affect contact resistance and environmental corrosion characteristics in specific applications.

Frequently Asked Questions (FAQ)

Q: Can the Switchcraft 855X directly replace the Switchcraft 855 in existing designs?

A: The 855X maintains mechanical and electrical compatibility across all critical parameters including mating diameter, connector type, signal configuration, conductor count, and termination method. However, applications requiring the 500VAC voltage specification of the original 855 must evaluate compatibility with the 855X's 125VAC rating. Additionally, the contact plating difference (nickel versus silver) may affect performance in corrosive environments.

Q: What is the primary reason for substituting the Switchcraft 855?

A: The Switchcraft 855 is classified as obsolete. The 855X provides an active production alternative with identical mechanical and electrical specifications, ensuring continued availability for system maintenance and new implementations.

Q: Are there packaging differences between the Switchcraft 855 and 855X?

A: The original 855 packaging specification is not defined in available documentation. The 855X is supplied in bulk packaging, which may differ from the original part's packaging configuration.

Q: How do the compliance certifications differ between these parts?

A: The Switchcraft 855 is RoHS non-compliant, while the 855X achieves ROHS3 compliance. This compliance improvement reflects current regulatory standards for electronic component manufacturing and procurement.

Q: What is the significance of the contact plating difference?

A: The 855 features silver plating while the 855X uses nickel plating. Silver plating typically offers lower contact resistance, while nickel plating provides enhanced corrosion resistance. Application requirements determine which plating material is appropriate.

Q: Are there dimensional differences between the Switchcraft 855 and 855X?

A: The mating length differs slightly: the 855 measures 0.453" (11.50mm) while the 855X measures 0.450" (11.40mm). This 0.003" (0.10mm) variance is negligible for standard mechanical fit applications.