Hind Rectifiers Limited manufactures Hat type Power Rectifier Diode. Hind Rectifiers Limited is an ISO 9001: 2000 certified company offering a wide range of Power Semiconductor, Power Electronic Equipments and Railway Transportation Equipments. The Hat type Power Rectifier Diode protects from power surge through sine wave and comes with Case to heat sink for Thermal impedance. The Hat type Power Rectifier Diode provides both normal and reverse polarity.