V39ZA6P TVS Varistor, MOV, 25 V, 31 V, ZA Series, 76 V, Disc 14mm, Metal Oxide. The V39ZA6P is a radial leaded Metal-oxide Varistor designed for use in the protection of low and medium-voltage circuits and systems. The transient voltage surge suppressor is a varistor features power supply circuits to protect circuit board components and maintain data integrity.