Truohm knp series 3w wirewound resistors 5 truohm knp 300s 022r an 0r22 wirewound resistor wound on a ceramic former with flame retardant silicone resin coating that offers high resistance stability excellent heat dissipation and low noise truohm knp 300s 022r knp series 0r22 5 3w axial wirewound resistor