Switchcraft 850 Barrel Connector - Equivalent & Substitute Parts

Part Overview

The Switchcraft 850 is a 2.46mm ID mono phone plug connector featuring solder eyelet termination and free-hanging in-line mounting. This connector is classified as obsolete, which necessitates identification of active equivalent parts for ongoing applications. The 850 series represents a legacy MICRO-PLUG® design with two conductors and two contacts, suitable for audio and signal applications requiring mono connectivity.

Substiute Parts

850

Switchcraft Inc.In Stock: 773850 Datasheet

Current PartRFQ

850X

Switchcraft Inc.In Stock: 4009850X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Switchcraft 850X qualifies as a direct substitute for the 850 based on the following critical parameters:

• Mating Diameter Match: Both parts maintain identical 2.46mm ID (0.097") mating diameter, ensuring mechanical compatibility with existing jack receptacles
• Connector Type & Gender: Both are male phone plug connectors with identical signal configuration (mono, 2 conductors, 2 contacts)
• Mounting & Termination: Both employ free-hanging in-line mounting with solder eyelet termination
• Physical Dimensions: Mating length/depth measurements are equivalent (0.453" vs 0.450"), within acceptable tolerance for connector interfaces
• Housing & Contact Materials: Both utilize aluminum housing and brass contacts
• Cable Opening: Identical 0.125" (3.18mm) cable opening specification

The 850X represents the active production equivalent of the obsolete 850, with enhanced electrical specifications and improved compliance status.

Parameter Comparison

Engineering Selection Recommendations

The Switchcraft 850X is the direct active equivalent for the obsolete Switchcraft 850. Selection of the 850X is supported by the following factors:

• Mechanical Compatibility: Identical mating diameter and mounting configuration ensure drop-in compatibility with existing jack receptacles and cable assemblies
• Electrical Equivalence: The 850X provides specified electrical ratings (125VAC, 125 mA) for applications where the original 850 lacked published specifications
• Compliance Status: The 850X achieves ROHS3 compliance and MSL Level 1 rating, addressing modern regulatory requirements that the obsolete 850 does not meet
• Production Availability: The 850X maintains active production status with substantial inventory (3916 pcs), ensuring long-term supply continuity
• Contact Material Difference: The 850X uses nickel plating versus the 850's silver plating. This represents a material upgrade consistent with modern connector manufacturing standards and does not compromise electrical performance for mono audio and signal applications

Frequently Asked Questions (FAQ)

Q: Can the 850X be used as a direct replacement for the 850 in existing designs?

A: Yes. The 850X maintains identical mating diameter (2.46mm ID), connector type (male phone plug), signal configuration (mono, 2 conductors), mounting type (free-hanging in-line), and termination method (solder eyelet). The 0.003" difference in mating length (0.453" vs 0.450") is within acceptable connector interface tolerance.

Q: What is the difference between silver and nickel contact plating?

A: The 850 uses silver plating while the 850X uses nickel plating. Both materials provide adequate electrical conductivity for mono audio and signal applications. Nickel plating is standard in modern connector manufacturing and offers improved corrosion resistance in typical operating environments.

Q: Why is the 850 classified as obsolete?

A: The 850 is no longer in active production. The 850X represents the current production equivalent and is recommended for all new designs and replacement applications.

Q: Does the 850X meet current regulatory requirements?

A: Yes. The 850X is ROHS3 compliant and carries MSL Level 1 (Unlimited) rating, meeting current environmental and moisture sensitivity standards. The obsolete 850 does not carry these certifications.

Q: What are the electrical specifications for the 850X?

A: The 850X is rated for 125VAC operation with a maximum current rating of 125 mA. Operating temperature range is -20°C to 65°C.

Q: Are there packaging differences between the 850 and 850X?

A: The 850 is packaged as individual units with handle inclusion. The 850X is available in bulk packaging. Both include 2 pcs per unit (1 connector, 1 handle).