The Vishay ES1A-E3/61T is a high-voltage fast switching-diode that features a maximum repetitive peak reverse voltage of 600 volts and a maximum average peak forward rectified current of 1.0 ampere. The device has a low-profile, surface-mount to-252 (d-Pak) package, which allows it to be stacked in multiple circuits. The device has a low-capacitance rating and it has a recovery time of 30ns, meaning it can quickly switch back and forth between high and low states without significant delays. Additionally, the device has a high surge capability and is RoHS compliant. This makes it ideal for use in high-voltage circuit designs and applications, such as power supplies and rectifiers.