Winchester’s KINGS® brand MHV series connector, forerunner of the SHV series, was designed for high voltage applications of BNC connectors (voltage greater than 500 vrms). MHV connectors are sometimes referred to as high voltage BNC, but are not intermateable with BNC connectors. MHV connectors are covered under MIL-PRF-39012. High voltage connectors are designed for use where the normal operating voltage of standard coaxial connectors is inadequate. They are commonly used in military and nuclear applications, as well as medical electronics. Major uses include research laboratories, manufacturers of nuclear control instrumentation, and accelerator laboratories.