8117

Overview

The Bourns Inc. 8117 is a through-hole common mode choke belonging to the 8100 series, designed for power line filtering applications. It features a minimum inductance of 36 mH measured at a test frequency of 1 kHz and supports a maximum rated current of 2.9 A. The component exhibits a maximum DC resistance of 300 mOhm and provides a dielectric strength with a breakdown voltage of 1.5 kVrms. This two-line filter utilizes a J.W. Miller trademarked construction.

Feature Summary

• Provides common mode noise suppression for dual-line power circuits
• Engineered for high dielectric isolation between windings
• Constructed for robust through-hole mounting reliability

Applications

• Power line EMI filtering
• Industrial equipment input stages
• Consumer electronics power supplies

Procurement Notes

Verify component status carefully as the 8117 is listed as obsolete and no longer manufactured by Bourns. Confirm availability through authorized distributors or secondary markets, noting that supply may be restricted or limited. Ensure any sourced units match the original J.W. Miller branding and specifications before integration into designs requiring this specific legacy part.

Selection Notes

Select this component only if the design specifically requires the 36 mH inductance and 2.9 A current rating profile defined by the 8100 series. Evaluate alternative parts from the same manufacturer family if new production is required, as direct replacement availability varies. Verify physical footprint compatibility and lead configuration for existing PCB layouts.

Part Context

This component is part of the Bourns 8100 series of common mode chokes, marketed under the J.W. Miller brand name. These devices are categorized under inductors, chokes, and coils within the broader passive components portfolio. The series focuses on providing reliable noise filtration for AC and DC power lines in various electronic systems.

Replacement Considerations

The 8117-RC is identified as a direct substitute part number available from Bourns Inc. Verify technical equivalence between the standard and RC variants before implementation.