
Walsin Technology Corporation
Strong pin-compatible alternative from Walsin with matching key electrical parameters.
Find direct and alternative replacements for the FOJAN FCC0603B333K500CT, a 33nF 50V 0603 ceramic capacitor. Review key parametric differences before substitution.
Tolerance or dielectric changes require circuit validation.
All reviewed candidates are in the same 0603 package.
Multiple vendors offer compatible parts for this common value.
Direct replacement for FCC0603B333K500CT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
For a direct drop-in, use the Walsin 0603B333K500CT. For an upgrade, use the TDK CGA3E3X8R2A333KT0Y0N.
The main risk is substituting a part with wider capacitance tolerance (e.g., ±20%), which can impact timing or filter circuits.

Walsin Technology Corporation
Strong pin-compatible alternative from Walsin with matching key electrical parameters.
| Feature / factor | FCC0603B333K500CT | 0603B333K500CT | CGA3E3X8R2A333KT0Y0N | TCC0603X7R333M500CT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 (1608 Metric) | 0603 (1608 Metric) | 0603 (1608 Metric) | 0603 (1608 Metric) | 0603 (1608 Metric) — Same package size.; CGA3E3X8R2A333KT0Y0N: Same package size.; TCC0603X7R333M500CT: Same package size. |
| Capacitance | 33 nF | 33 nF | - | 33 nF | 33 nF — Capacitance value matches.; TCC0603X7R333M500CT: Capacitance value matches. |
| Voltage | 50 V | 50 V | 100 V | 50 V | 50 V / 100 V — Voltage rating matches.; CGA3E3X8R2A333KT0Y0N: Higher voltage rating provides more margin.; TCC0603X7R333M500CT: Voltage rating matches. |
| Tolerance | ±10% | ±10% | - | ±20% | ±10% / ±20% — Tolerance matches.; TCC0603X7R333M500CT: Wider tolerance may affect precision circuits. |
| Dielectric | X7R | X7R | X8R | X7R | X7R / X8R — Dielectric type matches.; CGA3E3X8R2A333KT0Y0N: Wider operating temp range up to 150°C.; TCC0603X7R333M500CT: Dielectric type matches. |
| Application | Commercial | - | AEC-Q200 | - | AEC-Q200 — Automotive grade part. |
Verified drop-in options for FCC0603B333K500CT 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.