
Panasonic
Same series and package, but has higher ESR, requiring application review.
Finding a substitute for the Panasonic 10TPE220MIL, a 220µF 10V low-ESR polymer tantalum capacitor, requires careful attention to its 18mΩ ESR. While several parts match in capacitance and voltage, their higher ESR presents a performance downgrade risk.
Higher ESR in all candidates affects performance.
Form-compatible options exist, but cross-vendor parts need verification.
No direct, fully equivalent replacement was found. All viable candidates have a higher ESR, which is a critical performance downgrade.
The closest option is Panasonic's 10TPE220ML, but it's a downgrade due to higher ESR. A true equivalent requires searching for parts with ESR ≤ 18mΩ.
Increased ESR, which can lead to higher voltage ripple, reduced efficiency, and potential overheating in high-current applications.

Panasonic
Same series and package, but has higher ESR, requiring application review.
| Feature / factor | 10TPE220MIL | 10TPE220ML | 10TPB220ML | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Esr | 18 mΩ max | 25 mΩ | 40 mΩ | 25 mΩ / 40 mΩ — Candidate ESR is higher, which is a performance downgrade.; 10TPB220ML: Candidate ESR is more than double, a significant downgrade. | |
| Package | D3L | D3L | D3L | D3L — Package code matches, indicating form and fit compatibility.; 10TPB220ML: Package code matches. | |
| Voltage | 10V | 10V | 10V | 10V — Voltage rating is identical.; 10TPB220ML: Voltage rating is identical. | |
| Capacitance | 220 µF | 220 µF | - | 220 µF — Capacitance is identical. | |
| Manufacturer | Panasonic | - | Panasonic | Panasonic — Same manufacturer, different series (TPB vs TPE). |
The best alternative is likely Panasonic's 10TPE220ML, as it is from the same series. However, it has a higher ESR (25mΩ vs 18mΩ), which is a performance downgrade and must be evaluated for your specific application.