
ACMECON
Functional alternative with a higher voltage rating (50V), but requires board redesign for its SMD package.
ERR1VM221E16OT is a 220µF 35V radial aluminum electrolytic capacitor. Finding a drop-in replacement is challenging as most modern equivalents are surface-mount, requiring a board redesign.
Requires board redesign from through-hole to SMD. Not a drop-in replacement.
Candidates with higher voltage ratings are available, reducing electrical stress.
No, there are no direct drop-in replacements for ERR1VM221E16OT. All potential alternatives have a different package type (SMD vs. through-hole).
Select a functional alternative like VZH221M1JTR-1313 for its higher voltage rating, and plan for a PCB layout change from through-hole to surface mount.
The primary risk is the package mismatch. The target is a radial through-hole part, while all alternatives are surface-mount, requiring a mandatory board redesign.

ACMECON
Functional alternative with a higher voltage rating (50V), but requires board redesign for its SMD package.
| Feature / factor | ERR1VM221E16OT | VT1H221M1010 | VZH221M1JTR-1313 | VZH221M1VTR-0810L | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Radial, 6.3mm x 16mm | SMD, 10x10.2mm | SMD, 12.5x13.5mm | SMD, 8x10mm | SMD, 10x10.2mm / SMD, 12.5x13.5mm / SMD, 8x10mm — Requires board redesign from through-hole to surface mount.; VZH221M1JTR-1313: Requires board redesign from through-hole to surface mount.; VZH221M1VTR-0810L: Requires board redesign from through-hole to surface mount. |
| Voltage | 35V | 50V | 63V | 35V | 50V / 63V / 35V — Higher voltage rating provides increased design margin.; VZH221M1JTR-1313: Higher voltage rating provides increased design margin.; VZH221M1VTR-0810L: Voltage matches target; no derating margin. |
| Capacitance | 220µF | 220µF | 220µF | 220µF | 220µF — matched; VZH221M1JTR-1313: matched; VZH221M1VTR-0810L: matched |
| Temperature | -40°C to 105°C | -55°C to 105°C | -55°C to 105°C | -55°C to 105°C | -55°C to 105°C — Wider operating temperature range.; VZH221M1JTR-1313: Wider operating temperature range.; VZH221M1VTR-0810L: Wider operating temperature range. |
The best alternatives, such as VZH221M1JTR-1313 or VT1H221M1010, offer upgraded voltage ratings but are surface-mount parts and require a board redesign.