The GWS 30/100 from Vishay is a Power Resistor with Resistance 9.1 to 100000 ohm, Tolerance ± 2 to 10 %, Power Rating 150 W, Voltage Rating 1600 V, Temperature Operating Range -55 to 350 Degree C. Tags: Screw Mount. More details for GWS 30/100 can be seen below.