Product features and main applications:
   NPNPN five-layer structure of silicon bidirectional
   devices; with independent intellectual property
   rights of single-sided digging technology, table
   glass passivation process; multi-layer
   metallized electrodes on the back; with high
   blocking voltage and high temperature stability.

Mainly used in:
   vacuum cleaners, power tools and other
   motor speed controllers; solid state relays;
   heating controllers (temperature regulation);
   other phase control circuits.