600 V Housingless Welding Diode Housingless Welding Diode 600 V, 10.3 kA*/ 11.6 kA** with a diameter of 56 mm. Designed with improved losses for medium frequency resistance welding and high current rectifier applications. The low on-state voltage allows very high forward current of around 10.3 kA continuously. The 56DN06B02 is mechanically compatible to 56DN06B01 and very compact with a diameter of 56 mm and a height of 5 mm. *IFAV @ Tc= 100°C **IFAV @ Tc= 85°C