DSS1NB32A331Q91A

Overview

The Murata DSS1NB32A331Q91A is a radial, three-lead feedthrough capacitor belonging to the DSS1NB3 series. It features a capacitance of 330 pF and a maximum DC voltage rating of 100 V. Designed for through-hole mounting, this component operates within a temperature range of -40°C to +85°C. It functions as a third-order low-pass LC (T-type) EMI filter with a rated current capacity of 6 A.

Feature Summary

• Provides effective electromagnetic interference suppression using a third-order LC T-type filter topology.
• Offers high current handling capability suitable for power line applications.
• Features a robust metal case construction that ensures reliable grounding when mounted on a chassis.

Applications

• Power supply input filtering
• DC motor drive circuits
• Industrial control systems

Procurement Notes

Verify the specific suffix Q91A against official Murata documentation to confirm package and termination details. Check lifecycle status as some variants in this series are marked end-of-life or not recommended for new designs. Ensure compatibility with existing PCB footprints before ordering.

Selection Notes

Select this component for applications requiring high-current EMI filtration in a compact radial form factor. The 330 pF value targets high-frequency noise attenuation. Compare against other DSS1NB3 values if different cutoff frequencies are required. Confirm thermal limits align with the operating environment.

Part Context

This part is part of Murata's EMIFIL DSS1 series, which specializes in feedthrough capacitors for EMI/RFI suppression. These components utilize a coaxial structure where the center conductor passes through a grounded metal housing, providing superior shielding compared to standard ceramic capacitors.

Replacement Considerations

No direct public substitute part numbers are confirmed for this specific model. Users should consult Murata for obsolescence management or equivalent alternatives within the DSS1NB3 series.