3-137-421

Overview

The Schurter 3-137-421 is a current-compensated common mode choke designed for vertical mounting. It features a two-phase configuration with an inductance of 0.9 mH and a rated current capacity of 10 A. The component operates within a temperature range from -40°C to +100°C, ensuring reliability under varying thermal conditions.

Feature Summary

• Provides effective common mode noise suppression through current-compensated design
• Supports vertical panel or board mounting configurations
• Engineered for high thermal stability across wide operating temperatures

Applications

• Industrial power supply input filtering
• Electromagnetic interference suppression in multi-phase systems
• Noise reduction in sensitive electronic control units

Procurement Notes

Verify the specific datasheet version for the 3-137-421 to confirm mechanical dimensions and pinout compatibility before integration. Ensure that the 10 A current rating and 0.9 mH inductance align with the target circuit requirements. Cross-reference the operating temperature limits against the final assembly environment to guarantee long-term performance stability.

Selection Notes

Select this component when vertical mounting space is constrained but high current handling is required. The 0.9 mH inductance offers balanced filtering for standard industrial frequencies. Consider the +100°C maximum rating for enclosed environments where heat dissipation may be limited compared to open-air installations.

Part Context

This part belongs to Schurter's DKCV-1 series of compensated chokes. These components are engineered for robust electromagnetic compatibility in demanding industrial applications. The series emphasizes compact form factors while maintaining high current capabilities and reliable noise attenuation characteristics.

Replacement Considerations

No public substitute part numbers are confirmed for this specific model.