The MCR10EZHF3903 is a part produced by ROHM, a global semiconductor and electronic component manufacturing company headquartered in Japan. It is a 1 ohm, 3 Watt, non-inductive power chip resistor. It has a built-in ESD protection and is ideal for automotive and industrial applications which require very high accuracy and stability. The resistors are lead-free and halogen-free, meeting the RoHS and REACH standards. It also has an insulated design, which makes it ideal for high vibration resistance as well as temperature fluctuations.