Pomona Electronics 6856 Circular Connector Adapter

Part Overview

The Pomona Electronics 6856 is a circular connector adapter designed to convert between two 3-position XLR female socket interfaces in a free-hanging (in-line) configuration. This adapter facilitates connection between compatible XLR-based audio and signal systems using a push-pull detent lock fastening mechanism.

The 6856 has reached obsolete product status. Locating equivalent substitute parts is necessary to maintain system compatibility and ensure continued availability for replacement and new installations.

Substiute Parts

6856

Pomona ElectronicsIn Stock: 9766856 Datasheet

Current PartRFQ

389X

Switchcraft Inc.In Stock: 1111389X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Pomona Electronics 6856 is determined by the following critical parameters:

• Connector Interface: Both adapter ends must convert between 3-position XLR female sockets
• Mounting Configuration: Free-hanging (in-line) orientation required
• Fastening Mechanism: Push-pull detent lock compatibility
• Housing Construction: Zinc die cast with nickel finish
• Regulatory Compliance: ROHS3 compliance maintained

The Switchcraft Inc. 389X meets all substitution criteria. While the 389X introduces shielding (versus the unshielded 6856) and includes a locking mechanism feature, these represent functional enhancements that do not prevent direct substitution. The core electrical and mechanical interfaces remain identical.

Parameter Comparison

Engineering Selection Recommendations

The Switchcraft Inc. 389X is the direct substitute for the obsolete Pomona Electronics 6856. Both parts maintain ROHS3 compliance and are constructed from identical materials with matching mechanical interfaces.

The 389X is currently in active production status, ensuring long-term availability and supply chain continuity. The addition of shielding in the 389X provides enhanced electromagnetic interference rejection compared to the unshielded 6856, making it suitable for applications requiring improved signal integrity.

Frequently Asked Questions (FAQ)

Q: Can the Switchcraft 389X directly replace the Pomona 6856 in existing installations?

A: Yes. Both adapters share identical XLR 3-position female socket interfaces, free-hanging mounting configuration, and push-pull detent lock fastening. Physical and electrical compatibility is maintained.

Q: What is the difference between the shielded 389X and unshielded 6856?

A: The 389X includes electromagnetic shielding, which reduces susceptibility to external interference. The 6856 lacks this shielding. In low-noise applications, the 389X provides superior performance. In applications where shielding is not required, both parts function identically at the connector interface level.

Q: Are both parts RoHS compliant?

A: Yes. Both the Pomona 6856 and Switchcraft 389X are ROHS3 compliant, meeting current environmental and material restriction standards.

Q: What is the packaging difference between these parts?

A: The 6856 was supplied in standard packaging (status now obsolete). The 389X is supplied in bulk packaging and is currently in active production.

Q: Are there any orientation or mounting differences between these adapters?

A: No. Both adapters are configured as free-hanging (in-line) devices with identical mounting characteristics and connector orientation.