The GWS 25 Ni from Vishay is a Power Resistor with Resistance 6.8 to 18000 ohm, Tolerance ± 5 to 10 %, Power Rating 18 W, Voltage Rating 300 V, Temperature Operating Range -55 to 350 Degree C. Tags: Screw Mount. More details for GWS 25 Ni can be seen below.