
Panasonic
A pin-compatible upgrade with significantly better endurance, wider temperature range, and hybrid technology.
Panasonic's EEEFK1V331P is a 330µF 35V low-impedance aluminum electrolytic capacitor in a 10x10.2mm SMD package. When seeking alternatives, focus on matching capacitance, voltage, and case size, while paying close attention to ESR and ripple current ratings.
Using a part with higher ESR or lower ripple current can cause instability or failure, especially in power applications.
Many alternatives share the same 10mm diameter footprint, but height and exact land pattern should be double-checked.
While many alternatives exist, performance can vary significantly between series and manufacturers.
Direct replacement for EEEFK1V331P 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 EEEFK1V331P, then review parametric alternatives for package and electrical fit.
The main risk is substituting with a capacitor that has higher ESR (Equivalent Series Resistance) or lower ripple current rating, which can compromise circuit performance and reliability.

Panasonic
A pin-compatible upgrade with significantly better endurance, wider temperature range, and hybrid technology.
| Feature / factor | EEEFK1V331P | EEHZK1V331P | EEEFT1H331GP | UCD1V331MNL1GS | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 10.0 mm x 10.2 mm | 10.0 mm x 10.2 mm | 10.0mm x 10.2mm | 10mm x 10mm | 10.0 mm x 10.2 mm / 10.0mm x 10.2mm / 10mm x 10mm — Package dimensions match.; EEEFT1H331GP: Package dimensions match.; UCD1V331MNL1GS: Slightly shorter (10mm vs 10.2mm), but land pattern is compatible.; VZH331M1VTR-1010: Slightly shorter (10mm vs 10.2mm), but land pattern is compatible. |
| Capacitance | 330 µF | 330 µF | - | 330 µF | 330 µF — Capacitance matches.; UCD1V331MNL1GS: Capacitance matches.; VZH331M1VTR-1010: Capacitance matches. |
| Voltage | 35 V | 35 V | 50 V | 35 V | 35 V / 50 V — Voltage rating matches.; EEEFT1H331GP: Higher voltage rating provides more margin.; UCD1V331MNL1GS: Voltage rating matches.; VZH331M1VTR-1010: Voltage rating matches. |
| Temperature | -55°C to +105°C | -55°C to +125°C | -55°C to +105°C | -55°C to +105°C | -55°C to +125°C / -55°C to +105°C — Wider operating temperature range.; EEEFT1H331GP: Operating temperature range matches.; UCD1V331MNL1GS: Operating temperature range matches. |
| Endurance | 2000h @ 105°C | 4000h @ 125°C | - | - | 4000h @ 125°C / 2000-5000h @ 105°C — Significantly longer endurance life.; VZH331M1VTR-1010: Endurance is comparable or better. |
| Technology | Standard Electrolytic | Hybrid | - | - | Hybrid — Hybrid technology offers lower ESR and higher ripple current. |
| Esr | ~0.08 Ω | - | 0.12 Ω | - | 0.12 Ω — ESR is higher, which may be a downgrade. |
Verified drop-in options for EEEFK1V331P 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.