1N400xGP General Purpose Plastic Rectifiers Vishay General Semiconductor 1N400xGP General-Purpose Plastic Rectifiers incorporate a glass passivated chip junction and Superectifier® structure for high efficiency and reliability. The 1N400xGP Rectifiers feature a low forward voltage drop and high forward surge capability. These devices also offer low leakage current, with a typical IR of less than 0.1μA.