
This HRE capacitor is a pin-compatible upgrade with a higher 100V rating.
Find reliable substitutes for the Walsin 0603B223K500CT, a 22nF 50V X7R ceramic capacitor. This guide provides direct matches, upgrades, and parametric alternatives to ensure your design and supply chain remain robust.
Key parameters are matched or improved. Secondary parameters like ESR should be checked for sensitive applications.
All suggested alternatives use the standard 0603 package, ensuring physical compatibility.
Direct replacement for 0603B223K500CT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Upgrade to a 100V rated part like CL10B223KC8WPNC for higher voltage margin, or use FCC0603B223K500CT for a direct match.
Minor variations in dielectric performance (DC bias, aging, ESR) between manufacturers can affect sensitive analog or timing circuits.

This HRE capacitor is a pin-compatible upgrade with a higher 100V rating.
| Feature / factor | 0603B223K500CT | CGA0603X7R223K101JT | CL10B223KC8WPNC | FCC0603B223K500CT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 (1608 Metric) | 0603 | 0603 (1608 Metric) | 0603 (1608 Metric) | 0603 / 0603 (1608 Metric) — Package size matches.; CL10B223KC8WPNC: Package size matches.; FCC0603B223K500CT: Package size matches.; TCC0603X7R203K500CT: Package size matches. |
| Voltage | 50V | 100V | 100V | 50V | 100V / 50V — Higher voltage rating provides more margin.; CL10B223KC8WPNC: Higher voltage rating provides more margin.; FCC0603B223K500CT: Voltage rating matches.; TCC0603X7R203K500CT: Voltage rating matches. |
| Capacitance | 22nF | 22nF | 22nF | 22nF | 22nF / 20nF — Nominal capacitance matches.; CL10B223KC8WPNC: Nominal capacitance matches.; FCC0603B223K500CT: Nominal capacitance matches.; TCC0603X7R203K500CT: Slightly lower capacitance, may be acceptable. |
| Dielectric | X7R | X7R | X7R | X7R | X7R — Dielectric type matches.; CL10B223KC8WPNC: Dielectric type matches.; FCC0603B223K500CT: Dielectric type matches.; TCC0603X7R203K500CT: Dielectric type matches. |
| Tolerance | ±10% | - | - | ±10% | ±10% — Tolerance matches. |
Verified drop-in options for 0603B223K500CT are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.