The ROHM MCR10EZHF1204 part is a varistor manufactured by ROHM Co., Ltd. It is a non-polarized safety device that helps to provide protection against over-voltage transients and surges. The MCR10EZHF1204 features a 10V clamping voltage, and a maximum surge current of 12A (8/20µs waveform). It has a capacitance of 1.04pF, and is available in an SMD package size of 3.2x2.8mm. The MCR10EZHF1204 has an insulation resistance rating of 10,000MO minimum, and an operating temperature range of -40 to +125°C. It is RoHS compliant, and is suitable for use in a wide range of automotive, industrial, and consumer-end electronic equipment.