In the datasheets, 2.2@150A is stated as the peak forward voltage.In order to operate efficiently, this device should have a peak RMS reverse voltage range of 380.A forward voltage of over 2.2 V is recommended for the system.
SKB 26/12 Features
the forward peak voltage is 2.2@150A the peak RMS reverse voltage range of 380
SKB 26/12 Applications
There are a lot of Semikron SKB 26/12 applications of RF diodes.