SBR3512 3-phase Bridge Rectifier, 35A 1200V, 5-Pin SBR. The SBR Series is a silicon passivated three phase bridge rectifier from HY Electronic (Cayman) Limited. It has a forward current of 35 A with reverse voltages ranging from 600 V to 1600 V. The rectifier transforms alternating current (AC) into direct current (DC). They are ideal for circuit board applications.