W3F41A1018AT1F

Overview

The KYOCERA AVX W3F41A1018AT1F is a surface-mount feed-through capacitor designed for EMI/RFI noise suppression. It features a 100 pF capacitance with a C0G (NP0) dielectric, ensuring stable performance across temperatures from -55°C to +125°C. Rated for 100 VDC, this four-terminal component utilizes a 1206 (3216 metric) package measuring 3.2 mm x 1.6 mm x 1.27 mm. It supports a maximum current of 300 mA and exhibits a maximum DC resistance of 600 mOhms. The device offers a tolerance range of -20% to +50% and operates effectively within a frequency range up to 5 GHz.

Feature Summary

• Four-terminal feed-through architecture provides low-inductance grounding for effective high-frequency noise attenuation.
• C0G (NP0) ceramic dielectric maintains consistent capacitance values despite temperature fluctuations and voltage changes.
• Surface-mount construction in a compact 1206 footprint facilitates automated assembly and dense circuit board layouts.

Applications

• EMI/RFI filtering in telecommunications equipment
• Noise suppression in automotive electronic control units
• Signal conditioning in industrial instrumentation

Procurement Notes

Verify the lifecycle status before procurement as this specific part number is listed as obsolete by the manufacturer. Confirm availability through authorized distributors or check for direct replacement alternatives such as the W3F11A1018AT1A series. Ensure that any substitute components meet the original electrical specifications and physical dimensions required for your design.

Selection Notes

Select this component when high-frequency noise suppression is critical in space-constrained applications. The four-terminal design offers superior grounding compared to standard two-terminal capacitors. Consider the 1206 package size for compatibility with existing footprints. Verify that the 100 VDC rating and 300 mA current handling are sufficient for the target circuit environment.

Part Context

This component belongs to the W3F series of three-terminal filter capacitors manufactured by KYOCERA AVX. These devices are engineered specifically for suppressing electromagnetic interference in sensitive electronic circuits. The series is known for its reliability in harsh environments, utilizing robust ceramic materials to withstand thermal stress while maintaining precise electrical characteristics over time.

Replacement Considerations

The W3F11A1018AT1A is identified as a direct substitute for this obsolete part. Verify pinout compatibility and ensure the replacement meets all original electrical ratings including capacitance, voltage, and current specifications before integration into the design.

FAQ

What is the temperature coefficient of the dielectric material?

The capacitor uses a C0G (NP0) dielectric, which provides a near-zero temperature coefficient, ensuring minimal capacitance variation over the operating temperature range.

How many terminals does this feed-through capacitor have?

It features four terminals, which facilitate low-inductance grounding and improved high-frequency filtering performance compared to two-terminal designs.