The Royal Ohm PRWAAWJW101B00 is a 1 watt, 1 ohm axial leaded fixed wire wound resistor. It features an epoxy coating for durability and is able to operate outdoors in harsh conditions including shock, vibration, and humidity. The resistor is designed for a wide range of applications including power, voltage, and current measurement. It is RoHS compliant and suitable for precision circuits.