Abstract: Transient protection apparatus and circuitry that allows a circuit being protected to operate during the transient and after the transient. Two types are included, one being a blocking type for use in severe conditions when little is known about the source of the transients and protection must be provided, and the other being a shunt suppresser type for use where the impedance of the transient or other parameters known about the transient allows such use. For the blocking type, when a transient voltage is detected, a series component (Q-1) decouples prevents the transient from reaching the circuit being protected. A charge pump (A-1) is provided that powers the circuit being protected during the duration of the transient. A shunt suppressor type provides a zener threshold (Z1) detector with a power boost provided by a MOSFET or IGBT (Q-30.