
Panasonic
A voltage upgrade to 50V from Panasonic, but in a larger 5mm diameter package.
EEEFK1V100R is a 10µF 35V surface-mount aluminum capacitor from Panasonic's FK series. Finding a substitute requires matching capacitance and tolerance, ensuring voltage is equal or higher, and carefully checking physical package dimensions.
All candidates have a larger footprint than the target's 4mm diameter.
Candidates offer equal or higher voltage ratings, which is a safe upgrade.
No direct drop-in replacement was found; all reviewed candidates have different physical packages.
Upgrade to a higher voltage part like Panasonic's EEEFTH100UAR, but this requires a PCB layout change for the larger package.
The primary risk is physical incompatibility due to different package sizes, requiring board redesign.

Panasonic
A voltage upgrade to 50V from Panasonic, but in a larger 5mm diameter package.
| Feature / factor | EEEFK1V100R | EEEFTH100UAR | UD2C100M0810 | VD1H100MC054000CE0 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 4.0mm x 5.8mm | 5.0mm x 5.8mm | 8mm x 10.2mm | 5mm x 5.4mm | 5.0mm x 5.8mm / 8mm x 10.2mm / 5mm x 5.4mm / 6.3mm x 5.4mm — Larger diameter requires new land pattern.; UD2C100M0810: Significantly larger package.; VD1H100MC054000CE0: Larger diameter requires new land pattern.; VT10UF100V167RV0127: Significantly larger diameter. |
| Voltage | 35V | 50V | 160V | 50V | 50V / 160V / 100V — Higher voltage rating provides more margin.; UD2C100M0810: Much higher voltage rating.; VD1H100MC054000CE0: Higher voltage rating.; VT10UF100V167RV0127: Much higher voltage rating. |
| Capacitance | 10µF | 10µF | 10µF | 10µF | 10µF — matched; UD2C100M0810: matched; VD1H100MC054000CE0: matched; VT10UF100V167RV0127: matched |
| Series | FK Series | FT Series | - | - | FT Series — Both are low ESR series. |
| Manufacturer | Panasonic | - | HONOR | HUAWEI | HONOR / HUAWEI / KNSCHA — Cross-vendor change.; VD1H100MC054000CE0: Cross-vendor change.; VT10UF100V167RV0127: Cross-vendor change. |
The best alternative depends on board layout flexibility. Panasonic's EEEFTH100UAR offers a voltage upgrade to 50V but has a larger 5mm diameter package. Other functional alternates exist but also require checking package dimensions.