W2H11A2218AT1F

Overview

The W2H11A2218AT1F is a surface-mount feedthrough capacitor from the KYOCERA AVX W2H series. It features a capacitance of 220 pF with a tolerance of -20% to +50%. The component has a DC voltage rating of 100 V and a current rating of 500 mA. Its maximum DC resistance is 150 mOhms, utilizing C0G (NP0) dielectric material. The package is 0805 (2012 Metric) with four PCB pads, measuring 2.01 mm in length, 1.25 mm in width, and 1.14 mm in maximum height. It operates within a temperature range of -55°C to +125°C.

Feature Summary

• High-current capability rated at 500 mA for robust power line filtering
• Low impedance design with a maximum DC resistance of 150 mOhms
• Stable C0G (NP0) dielectric ensures consistent performance across temperature variations

Applications

• Smart meter applications requiring high-frequency noise suppression
• Surface mount feedthru filter circuits in compact electronic assemblies
• Power supply input/output filtering in industrial equipment

Procurement Notes

Verify the specific suffix 'T1F' against the manufacturer's datasheet to confirm packaging details and tape-and-reel specifications. Ensure the selected variant matches the required 0805 footprint and terminal configuration. Cross-reference the RoHS3 compliance status if environmental regulations apply to the final assembly. Confirm availability through authorized distributors as lead times may vary.

Selection Notes

Select this component when a 220 pF feedthrough capacitor is needed with a 500 mA current handling capacity. The 150 mOhm DCR makes it suitable for low-loss signal or power paths. Compare against the W2F series if lower current ratings are acceptable, noting that the W2H series offers higher current throughput. Ensure the 0805 package dimensions fit the board layout constraints.

Part Context

This part belongs to the W2H series of multilayer ceramic feedthrough capacitors designed for surface mount technology. The series provides high-frequency EMI/RFI suppression in a compact form factor. The W2H designation specifically indicates the high-current variant within the broader W2/W3 family, distinguishing it by its 500 mA rating compared to lower-rated counterparts.

Replacement Considerations

W2F11A2218AT1F is listed as a parameter-equivalent substitute but carries a lower 300 mA current rating and higher 600 mOhm DCR. Verify that the reduced current handling and increased resistance are acceptable for the specific circuit application before substitution.