DSS1NB32A220Q91A

Overview

The Murata DSS1NB32A220Q91A is a three-terminal feedthrough capacitor from the EMIFIL DSS series. It features a capacitance of 22 pF with a tolerance of ±10%. The component supports a rated DC voltage of 100 V and handles a maximum current of 6 A. Designed for through-hole radial mounting, it operates within a temperature range of -40°C to +85°C. Physical dimensions are 8.5 mm in length, 7.5 mm in height, and 3.5 mm in width.

Feature Summary

• LC(T) type third-order low-pass EMI filtering architecture
• Three-terminal design providing superior high-frequency noise suppression compared to standard two-terminal capacitors
• Radial leaded construction suitable for panel or chassis mounting applications

Applications

• General purpose electromagnetic interference filtering
• Power line noise suppression in electronic equipment
• Signal integrity protection in sensitive circuits

Procurement Notes

Verify the specific suffix Q91A against official Murata documentation to confirm packaging details and compliance status. Ensure the 22 pF capacitance value matches the circuit requirements, as similar part numbers may differ significantly in value. Confirm availability status directly with authorized distributors, as supply conditions vary by region and time.

Selection Notes

Select this component when high-frequency noise attenuation is required on power or signal lines carrying up to 6 A. The three-terminal structure offers better performance than standard capacitors at higher frequencies. Ensure the PCB layout allows for direct grounding of the outer terminal to maximize shielding effectiveness. Verify that the 100 V DC rating exceeds the peak operating voltage of the application.

Part Context

This component belongs to the Murata EMIFIL DSS series of feedthrough capacitors. These components are engineered for effective EMI/RFI suppression in compact spaces. The DSS series utilizes an LC(T) filter topology to provide steep attenuation characteristics. This specific model represents a low-capacitance variant optimized for high-frequency noise removal rather than bulk energy storage.

FAQ

What is the insulation resistance specification?

The insulation resistance is specified as 1 Gohm.

Is this component RoHS compliant?

RoHS compliance details are available in the official product datasheet; verification should be performed via the manufacturer's documentation.