The GWS 30/133 from Vishay is a Power Resistor with Resistance 13 to 160000 ohm, Tolerance ± 2 to 10 %, Power Rating 200 W, Voltage Rating 2300 V, Temperature Operating Range -55 to 350 Degree C. Tags: Screw Mount. More details for GWS 30/133 can be seen below.