
Murata Electronics
Strong pin-compatible alternative from Murata with identical key electrical parameters and package.
Find the best replacement for the FOJAN FCC0402B104K500AT, a 100nF 50V 0402 X7R ceramic capacitor. This page analyzes pin-compatible and functional alternatives from leading manufacturers like Murata and TAIYO YUDEN.
All candidates use the standard 0402 package, ensuring physical compatibility.
Using an X5R substitute in an application requiring operation above 85°C can lead to failure. Tolerance differences also require review.
Direct replacement for FCC0402B104K500AT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Start with Datasheet verified or Strong match candidates for FCC0402B104K500AT, then review parametric alternatives for package and electrical fit.
The main risk is substituting with a capacitor that has an X5R dielectric, which has a lower maximum operating temperature of 85°C compared to the target's 125°C.

Murata Electronics
Strong pin-compatible alternative from Murata with identical key electrical parameters and package.
| Feature / factor | FCC0402B104K500AT | GRM155R71H104KE14J | UMK105B7104KVHF | C1005X5R1H104KT000F | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 (1005 metric) | 0402 (1005 metric) | 0402 (1005 Metric) | 0402 (1005 Metric) | 0402 (1005 metric) / 0402 (1005 Metric) — Package size matches.; UMK105B7104KVHF: Package size matches.; C1005X5R1H104KT000F: Package size matches.; HGC0402R5104K500NTEJ: Package size matches. |
| Voltage | 50V | 50V | 50V | - | 50V — Voltage rating matches.; UMK105B7104KVHF: Voltage rating matches. |
| Capacitance | 100nF | 100nF | 100nF | - | 100nF — Capacitance value matches.; UMK105B7104KVHF: Capacitance value matches. |
| Dielectric | X7R | X7R | X7R | X5R | X7R / X5R — Dielectric and temperature range match.; UMK105B7104KVHF: Dielectric and temperature range match.; C1005X5R1H104KT000F: Different dielectric material.; HGC0402R5104K500NTEJ: Different dielectric material. |
| Tolerance | ±10% | ±10% | - | - | ±10% — Tolerance matches. |
| Application | General | - | AEC-Q200 | - | AEC-Q200 — Candidate is automotive qualified, an upgrade. |
| Temperature | -55°C to +125°C | - | - | -55°C to +85°C | -55°C to +85°C — Reduced max operating temperature.; HGC0402R5104K500NTEJ: Reduced max operating temperature. |
Verified drop-in options for FCC0402B104K500AT 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.