
FOJAN
A pin-compatible 10nF 50V 0805 X7R capacitor from FOJAN with identical key parameters.
Find and compare pin-compatible replacements and functional upgrades for the Walsin 0805B103K500CT ceramic capacitor. This guide analyzes alternatives based on key electrical parameters, package, and lifecycle status.
Many candidates match or exceed voltage/tolerance specs. C0G vs X7R is an upgrade but should be reviewed.
All reviewed candidates use the same 0805 package, ensuring physical compatibility.
Some potential alternatives are marked 'Not For New Designs', which is a major risk for production.
Direct replacement for 0805B103K500CT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
For a direct drop-in, FCC0805B103K500DT is the closest match. For a performance upgrade, C2012C0G1H103JT000N offers a more stable C0G dielectric.
The primary risks involve selecting a part with a 'Not For New Designs' lifecycle or overlooking subtle differences in dielectric characteristics (e.g., X7R vs. C0G) if the application is sensitive.

FOJAN
A pin-compatible 10nF 50V 0805 X7R capacitor from FOJAN with identical key parameters.
| Feature / factor | 0805B103K500CT | FCC0805B103K500DT | TCC0805X7R103K101DT | C2012C0G1H103JT000N | Compatibility / risk |
|---|---|---|---|---|---|
| Manufacturer | Walsin Technology Corporation | FOJAN | - | - | FOJAN — Cross-vendor alternative. |
| Package | 0805 (2012 metric) | 0805 (2012 Metric) | 0805 (2012) | 0805 (2012 metric) | 0805 (2012 Metric) / 0805 (2012) / 0805 (2012 metric) — Package size is identical.; TCC0805X7R103K101DT: Package size is identical.; C2012C0G1H103JT000N: Package size is identical. |
| Voltage | 50V | 50V | 100V | 50V | 50V / 100V — Voltage rating is identical.; TCC0805X7R103K101DT: Higher voltage rating provides increased design margin.; C2012C0G1H103JT000N: Voltage rating is identical. |
| Capacitance | 10nF | 10nF | 10nF | - | 10nF — Capacitance is identical.; TCC0805X7R103K101DT: Capacitance is identical. |
| Dielectric | X7R | X7R | X7R | C0G | X7R / C0G — Dielectric material is identical.; TCC0805X7R103K101DT: Dielectric material is identical.; C2012C0G1H103JT000N: C0G offers superior stability over temperature and voltage. |
| Tolerance | ±10% | - | - | ±5% | ±5% — Tighter tolerance provides better precision. |
Verified drop-in options for 0805B103K500CT 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.