
Nichicon
A functional alternative from a major brand with matching key electricals but slightly different package dimensions.
CK1H221M-CRG10 is a 220µF 50V SMD aluminum electrolytic capacitor in a 10x10.5mm package. Several functional alternatives with similar electricals and package sizes are available from manufacturers like Nichicon and Lelon.
Candidates have similar but not identical package dimensions. Land pattern and height clearance must be checked.
Key parameters match. Secondary parameters like ESR and ripple current should be compared for demanding applications.
Direct replacement for CK1H221M-CRG10 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Nichicon parts like UWD1H221MCL1GS or UUD1H221MNL1GS are strong candidates from a major brand with matching electricals and very similar packages.
The primary risk is mechanical fit. While several candidates have the same 10mm diameter, their height and land patterns must be verified.

Nichicon
A functional alternative from a major brand with matching key electricals but slightly different package dimensions.
| Feature / factor | CK1H221M-CRG10 | UUD1H221MNL1GS | UWD1H221MCL1GS | VEJ221M1HTR-1010 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 10mm x 10.5mm | 10x10mm | 10 x 10 mm | 10x10mm SMD | 10x10mm / 10 x 10 mm / 10x10mm SMD / 10x10.2mm — Shorter height (-0.5mm), diameter matches. Land pattern requires verification.; UWD1H221MCL1GS: Shorter height (-0.5mm), diameter matches. Land pattern requires verification.; VEJ221M1HTR-1010: Shorter height (-0.5mm), diameter matches. Land pattern requires verification.; VT1H221M1010: Slightly shorter height (-0.3mm), diameter matches. Land pattern requires verification. |
| Voltage | 50V | 50V | 50V | 50V | 50V — matched; UWD1H221MCL1GS: matched; VEJ221M1HTR-1010: matched; VT1H221M1010: matched |
| Capacitance | 220µF | 220µF | 220µF | 220µF | 220µF — matched; UWD1H221MCL1GS: matched; VEJ221M1HTR-1010: matched; VT1H221M1010: matched |
| Temperature | -40°C to +105°C | -55 to +105°C | -55°C to +105°C | -55°C to +105°C | -55 to +105°C / -55°C to +105°C — Wider operating range.; UWD1H221MCL1GS: Wider operating range.; VEJ221M1HTR-1010: Wider operating range.; VT1H221M1010: Wider operating range. |
Verified drop-in options for CK1H221M-CRG10 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.