3-137-420

Overview

The Schurter 3-137-420 is a current-compensated common mode choke designed for vertical mounting. It features a two-phase configuration with an inductance of 1.9 mH and a rated current capacity of 8 A. The component operates within a temperature range of -40°C to +105°C, ensuring reliability in demanding environments. Its compact design facilitates integration into power supply circuits requiring effective electromagnetic interference suppression.

Feature Summary

• Provides effective common mode noise attenuation through current-compensated magnetic coupling
• Supports vertical PCB mounting for optimized spatial efficiency in dense assemblies
• Engineered for stable performance under high thermal stress conditions

Applications

• Industrial power supply units
• Medical equipment power stages
• Telecommunications infrastructure

Procurement Notes

Verify the specific datasheet revision upon ordering, as electrical characteristics may vary between manufacturing batches. Confirm that the vertical mounting orientation aligns with your mechanical constraints. Ensure the selected variant matches the required 1.9 mH inductance and 8 A current rating for your circuit design.

Selection Notes

Select this component when space-constrained designs require vertical mounting solutions. It is suitable for applications needing robust EMI filtering without compromising current handling capabilities. Evaluate thermal management requirements to ensure operation remains within the specified temperature limits during continuous duty cycles.

Part Context

This component belongs to Schurter's DKCV series of common mode chokes. These components are engineered for high-performance electromagnetic interference suppression in critical power electronics. The series emphasizes reliability and compact form factors for modern industrial and medical applications.

Replacement Considerations

No public confirmed substitute part numbers are available.