Description
Diode circuits perform various tasks in electrical, but
especially electronic control systems, such as:
– Electrical decoupling of messages in fault signaling
   systems
   or
– As spark-suppression diodes for limiting surge voltages
   of inductive loads, such as solenoid valves, DC relays
   or similar

In order to meet these requirements, diode modules are
available as "diode gates" with common negative and
positive polarity or as individual diodes.