Switchcraft 857 Barrel Connector - Equivalent & Substitute Parts

Part Overview

The Switchcraft 857 is a 2.46mm ID mono phone plug connector featuring solder eyelet termination and 2 conductors. This connector is designed for audio and signal applications requiring reliable mono connections with standardized mating diameter specifications. The part is currently in active inventory with 1,041 pieces available as new original stock.

Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical dimensions, termination methods, and compliance certifications. Finding alternative sources ensures supply chain continuity and provides options across different packaging formats and inventory availability.

Substiute Parts

857

Switchcraft Inc.In Stock: 1082857 Datasheet

Current PartRFQ

855X

Switchcraft Inc.In Stock: 962855X Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Switchcraft 857 are identified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Compatibility Criteria:

• Connector type: Phone Plug
• Gender: Male
• Signal configuration: Mono (2 conductors)
• Mating diameter: 2.46mm ID (0.097")
• Voltage rating: 125VAC minimum
• Current rating: 125 mA minimum

Mechanical Compatibility Criteria:

• Termination method: Solder Eyelet(s)
• Mounting type: Free Hanging (In-Line)
• Number of contacts: 2 Conductors, 2 Contacts
• Contact material plating: Nickel
• Body material: Copper Alloy

Compliance & Environmental Criteria:

• RoHS3 Compliance
• Operating temperature range: -20°C ~ 65°C minimum

The Switchcraft 855X meets all substitution criteria and is classified as a direct equivalent within the MICRO-PLUG® series.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection - Switchcraft 857: Select the Switchcraft 857 when the original part number is specified in design documentation or when the current inventory of 1,041 pieces meets procurement requirements. This part maintains full ROHS3 compliance and active product status.

Substitute Selection - Switchcraft 855X: The Switchcraft 855X is a direct functional equivalent suitable for applications where the Switchcraft 857 is unavailable or when bulk packaging is preferred. Both parts are manufactured by Switchcraft Inc., belong to the MICRO-PLUG® series, and meet identical electrical and mechanical specifications. The 855X maintains ROHS3 compliance and active product status. Selection between these parts should be based on packaging requirements and inventory availability rather than technical performance differences.

Compliance Assurance: Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement in regulated industries.

Frequently Asked Questions (FAQ)

Q: Can the Switchcraft 855X be used as a direct replacement for the Switchcraft 857?

A: Yes. Both connectors are identical in electrical performance, mechanical dimensions, and termination specifications. They are both 2.46mm ID mono phone plugs with solder eyelet termination, 2 conductors, and matching voltage and current ratings. The primary difference is packaging format (bulk for 855X versus standard for 857).

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: connector type (phone plug), gender (male), signal configuration (mono), mating diameter (2.46mm ID), number of conductors (2), termination method (solder eyelet), mounting type (free hanging in-line), voltage rating (125VAC), current rating (125 mA), operating temperature range (-20°C ~ 65°C), contact plating (nickel), and body material (copper alloy).

Q: Does packaging format affect electrical or mechanical performance?

A: No. The Switchcraft 857 and 855X differ only in packaging (standard versus bulk). Electrical performance, mechanical dimensions, and functional characteristics are identical. Packaging selection should be based on procurement quantity requirements and inventory management practices.

Q: Are both parts currently available?

A: Yes. The Switchcraft 857 has 1,041 pieces in stock, and the Switchcraft 855X has 926 pieces in stock, both as new original inventory.

Q: What compliance certifications apply to these connectors?

A: Both the Switchcraft 857 and 855X are ROHS3 compliant and REACH unaffected. These certifications confirm compliance with current environmental and hazardous substance regulations.