
Murata Electronics
A parametric alternative in the same package and ratings, but with a different X8L dielectric requiring engineering review.
GCM21BR71E105KA56L is a 1uF, 25V, X7R automotive MLCC in an 0805 package from Murata. As it is Not Recommended for New Designs (NRND), finding a suitable replacement is essential for production continuity.
Dielectric changes (X7R to X8L/X5R) affect capacitance stability over temperature and operating range.
Several functional alternatives are in larger packages (1206, 1210) and are not drop-in compatible.
The target is NRND, but many 1uF 0805 capacitors are available, though exact matches are scarce.
No direct, fully-equivalent replacement was found. The closest candidates have different dielectrics or packages, requiring engineering review or a board redesign.
For a drop-in replacement, GCJ21BL81E105KA01L is the closest but requires review of its X8L dielectric. For new designs, a modern 1uF/25V/X7R/0805 part should be chosen.
The primary risk is a change in electrical performance due to different dielectric materials (X8L, X5R) or a required PCB layout change for parts in different packages.

Murata Electronics
A parametric alternative in the same package and ratings, but with a different X8L dielectric requiring engineering review.
| Feature / factor | GCM21BR71E105KA56L | GCJ21BL81E105KA01L | CC0805KKX5R9BB105 | CC1210KKX7R0BB105 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0805 (2012 metric) | 0805 (2012 metric) | 0805 (2012 metric) | 1210 (3225 metric) | 0805 (2012 metric) / 1210 (3225 metric) / 1206 (3216 metric) — Form factor matches.; CC0805KKX5R9BB105: Form factor matches.; CC1210KKX7R0BB105: Larger package requires layout change.; GCJ31CR72A105KA01L: Larger package requires layout change. |
| Capacitance | 1uF | 1uF | - | - | 1uF — Capacitance matches. |
| Voltage | 25V | 25V | 50V | 100V | 25V / 50V / 100V — Voltage rating matches.; CC0805KKX5R9BB105: Higher voltage rating is acceptable.; CC1210KKX7R0BB105: Higher voltage rating is acceptable.; GCJ31CR72A105KA01L: Higher voltage rating is acceptable. |
| Dielectric | X7R | X8L | X5R | X7R | X8L / X5R / X7R — Different dielectric may affect temperature stability.; CC0805KKX5R9BB105: Different dielectric.; CC1210KKX7R0BB105: Dielectric matches.; GCJ31CR72A105KA01L: Dielectric matches. |
| Temperature | -55°C to +125°C | -55°C to +150°C | -55°C to +85°C | - | -55°C to +150°C / -55°C to +85°C — Wider operating temperature range.; CC0805KKX5R9BB105: Narrower operating temperature range. |
No perfect drop-in replacement is available. The closest is GCJ21BL81E105KA01L, which matches the package and ratings but has an X8L dielectric that requires engineering review. Other functional alternatives require a PCB redesign.