DKIH-1 & DKIH-3 Common Mode Suppression Chokes Schurter DKIH-1 and DKIH-3 Common Mode Suppression Chokes are one-phase or three-phase high current compensated chokes with THT terminals featuring 10A to 50A rated current, 0.08 to 1.1mH rated inductance, and 0Hz to 400Hz power operating frequency. Operating in a 40°C to +100°C temperature range, the DKIH chokes are compact and lightweight with an open design for optimal cooling. Nanocrystalline ring cores offer 8x higher inductance performance than the ferrite core version in the same compact dimensions.