ER58 Series, AxialER Series are high power dissipation Silicone coated resistors Special pulse styles availableResistant to most solventsSilicone Coated AxialWire-wound power resistors manufactured to a very high standard and employing a ruggedised welded cap and lead method of construction giving considerable strength and resistance to damage. The element is wound onto a ceramic former and coated with a non-inflammable silicone cement.