Vishay / Dale RHA Pre-Charge and Discharge Wirewound Resistors are AEC-Q200 qualified and offer a 7.5W to 50W power range and ±1% to ±5% tolerance. These resistors feature molded construction for total environmental protection, complete welded construction, and mount on a chassis to utilize the heat sink effect. Vishay RHA resistors provide excellent stability in operation and have a -55°C to +250°C temperature range.