
rubycon
Upgrade with higher 450V rating and same 10000hr life from the same manufacturer.
Find and compare replacements for the Rubycon 400BXC10MEFC10X16, a 10µF 400V radial aluminum electrolytic capacitor. Key factors for alternatives include operational lifetime, physical dimensions, and voltage rating.
Several candidates have a 50% shorter lifetime, which is a major reliability risk.
Some alternatives have a shorter can height, which may affect board layout or vibration performance.
Yes, several alternatives exist. The best is 450BXW10MEFR10X16, an upgrade from the same manufacturer. Other functional alternatives are available but may have different sizes or shorter lifetimes.
The Rubycon 450BXW10MEFR10X16 is an ideal upgrade path, offering a higher voltage rating with the same physical size and lifetime.
The main risk when substituting is choosing a part with a lower lifetime rating (e.g., 5000 hours vs. the target's 10000 hours), which can impact long-term product reliability.

rubycon
Upgrade with higher 450V rating and same 10000hr life from the same manufacturer.
| Feature / factor | 400BXC10MEFC10X16 | 450BXW10MEFR10X16 | 400V10uF CD110 | 03EC1734 | Compatibility / risk |
|---|---|---|---|---|---|
| Voltage | 400V | 450V | 400V | 450V | 450V / 400V — Higher voltage rating provides more margin.; 400V10uF CD110: Exact match.; 03EC1734: Higher voltage rating.; HU2G100M-CRG12: Exact match. |
| Capacitance | 10µF | 10µF | 10µF | 10µF | 10µF — Exact match.; 400V10uF CD110: Exact match.; 03EC1734: Exact match.; HU2G100M-CRG12: Exact match. |
| Lifetime | 10000 hours | 10000 hours | Unknown | 5000 hours | 10000 hours / Unknown / 5000 hours — Exact match.; 400V10uF CD110: Lifetime not specified in provided data, must check datasheet.; 03EC1734: Significantly lower lifetime.; HU2G100M-CRG12: Significantly lower lifetime. |
| Package | Radial, Can (10x16mm) | Radial (10x16mm) | Radial, Can | 10 x 13mm | Radial (10x16mm) / Radial, Can / 10 x 13mm / 10 x 12.5 mm — Same manufacturer, series, and dimensions.; 400V10uF CD110: Type matches, but dimensions and lead spacing require datasheet verification.; 03EC1734: Shorter can height.; HU2G100M-CRG12: Shorter can height may affect mounting or vibration resistance. |
| Temperature | -25°C to +105°C | -40°C to +105°C | -40°C to +105°C | - | -40°C to +105°C — Wider operating range.; 400V10uF CD110: Wider operating range. |
Verified drop-in options for 400BXC10MEFC10X16 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.