Wire Wound power resistors are made by wrapping a length of high resistance wire onto an insulating form. Ceramic flame retardant package. Exceptionally small, sturdy and reliable. 5 watt ± 5% tolerance -55° C to 155° C operating range (derated over 70° C) 350 V working, 700 V overload Excellent moisture resistance Stable performance in diverse conditions Sealed with special cement High temperature stability .86" long x .39" square