SBT-0140W

Common Mode Chokes Overview

The KEMET SBT-0140W is a through-hole common mode choke designed for signal line filtering. It features an inductance of 40 µH with a tolerance of ±35%. The component supports a maximum DC current rating of 0.5 A and exhibits a maximum DC resistance (DCR) of 40 mΩ. It operates within a temperature range starting from -25°C and is rated for a voltage of 50 V.

Common Mode Chokes Feature Summary

• Provides common mode noise suppression for signal lines
• Utilizes through-hole mounting technology for PCB integration
• Constructed as a signal filter choke

Common Mode Chokes Applications

• Signal line noise filtering
• Common mode interference suppression in electronic circuits

Common Mode Chokes Procurement Notes

Verify the specific datasheet version to confirm operating temperature limits, as some sources indicate -25°C while others may reference different ranges. Ensure the 40 mΩ DCR and 0.5 A current ratings align with your circuit requirements. Confirm package type compatibility during procurement.

Common Mode Chokes Selection Notes

Select this component when signal integrity protection is required over power line filtering. The low DC resistance minimizes voltage drop in series applications. Verify that the 40 µH inductance meets the target frequency attenuation needs for the specific signal being filtered.

Common Mode Chokes Part Context

This component belongs to the KEMET common mode choke family, often associated with Tokin manufacturing origins. It serves as a passive electromagnetic interference (EMI) suppression device, distinct from capacitors or resistors in its magnetic energy storage function.

Common Mode Chokes Replacement Considerations

Check for direct substitutes such as the UDLSBTW0140W00 alias. Ensure replacement parts match the 40 µH inductance, 0.5 A current rating, and 40 mΩ DCR specifications to maintain circuit performance.