PC21 Ceramic Disc Capacitor (Class 1 Temperature Compensation)  PC22 Ceramic Disc Capacitor (Class 2 High Dielectric Constant)  PC23 Ceramic Disc Capacitor (Class 3 Semi-conductive Type)  PC24 Multilayer Ceramic (Mono) Capacitor - Radial/Axial  PC25 Multilayer Chip Capacitor  PC26 High Voltage Ceramic Disc Capacitor  PC27 Y1,Y2 Safety Recognized Ceramic Disc Capacitor