30J4R7E - 

The Ohmite High Energy Wirewounds are hand wound in order to maintain the tightest possible pitch (space between windings) and thereby maximize the mass of the resistive element. Since no wire substitutions are allowed, and no abrasive adjusting is permitted in this family, Ohmite can publish a fixed joule rating and fusing current for each part in this series. Features: Three standard offerings in three different package types — axial, SMD, and heat sinkable. Other sizes and types can be quoted on request, such as tubular power resistors.