The GWK 100 Ni from Vishay is a Power Resistor with Resistance 27 to 10000 ohm, Tolerance ± 5 to 10 %, Power Rating 50 W, Voltage Rating 1200 V, Temperature Operating Range -55 to 350 Degree C. Tags: Screw Mount. More details for GWK 100 Ni can be seen below.