The Littelfuse V300LA10P is a surface-mount varistor designed for a wide range of applications. This device is composed of two layers of varistor material, separated by a flame-retardant epoxy and packaged in a sturdy plastic case. This varistor provides transient overvoltage protection from lightning, switching transients, and ESD surges. It is rated at 300V and 10A and has a maximum peak energy rating of 130J. It has a response time of 10ns and a resonance frequency of 100KHz. The V300LA10P is able to dissipate large amounts of power, making it suitable for a variety of applications, including power controllers, solar inverters, power supplies, communications equipment and consumer electronics.