An electropneumatic transducer comprising: a lower block assembly, the lower block assembly comprising a lower housing and a supply nozzle, the supply nozzle having a supply seat and an exhaust seat, the supply nozzle being in fluid communication with a supply port and in intermittent fluid communication with an output port of the lower housing through an internal fluid passageway of the supply nozzle, the lower housing further comprising an exhaust bore in fluid communication with an exhaust port and in intermittent fluid communication with the output port of the lower housing through the internal fluid passageway; and an upper block assembly, the upper block assembly comprising an upper housing, a coil and an armature, the upper housing, coil and armature defining a latching electromagnetic circuit that provides alternating contact force of the armature to act upon a plug tip of a valve plug disposed within the supply nozzle of the lower housing assembly, the valve plug further including an exhaust surface configured to be placed in sealing contact with the exhaust seat and a supply surface configured to be placed in sealing contact with the supply seat, and the coil being arranged to receive an electrical input signal to activate and de-activate the electromagnetic circuit to latch the output port at a high output state and a low output state and the armature including a plurality of hinges (382, 384, 386), the hinges (382, 384, 386) providing a spring force moment opposing a magnetic force moment to alternatively latch the armature immediately adjacent to and nonadjacent to the upper housing. a lower block assembly, the lower block assembly comprising a lower housing and a supply nozzle, the supply nozzle having a supply seat and an exhaust seat, the supply nozzle being in fluid communication with a supply port and in intermittent fluid communication with an output port of the lower housing through an internal fluid passageway of the supply nozzle, the lower housing further comprising an exhaust bore in fluid communication with an exhaust port and in intermittent fluid communication with the output port of the lower housing through the internal fluid passageway; and an upper block assembly, the upper block assembly comprising an upper housing, a coil and an armature, the upper housing, coil and armature defining a latching electromagnetic circuit that provides alternating contact force of the armature to act upon a plug tip of a valve plug disposed within the supply nozzle of the lower housing assembly, the valve plug further including an exhaust surface configured to be placed in sealing contact with the exhaust seat and a supply surface configured to be placed in sealing contact with the supply seat, and the coil being arranged to receive an electrical input signal to activate and de-activate the electromagnetic circuit to latch the output port at a high output state and a low output state and the armature including a plurality of hinges (382, 384, 386), the hinges (382, 384, 386) providing a spring force moment opposing a magnetic force moment to alternatively latch the armature immediately adjacent to and nonadjacent to the upper housing.