SMC Corporation SY3A00-5U1 Solenoid Control Valve

SMC SY3A00-5U1 is a 5-port, 3/2 normally closed solenoid valve in the SY3000 family, powered by a 24 V DC coil and designed for plug-in, base-mount installation. When de-energized, the valve’s flow path is closed between P and the actuator ports, and energizing the coil shifts to the alternate connection, enabling rapid pneumatic actuation. The 5-port arrangement provides P (pressure), A and B (actuator) ports, and two exhaust ports for venting, suited to compact single- or double-acting cylinders in automation circuits. This valve is part of SMC’s modern SY3000 series, which emphasizes modular mounting, consistent coil voltages, and compatibility with standard manifolds and accessories. Typical applications include precise control of pneumatic actuators in compact automation layouts where space is at a premium and field-upgradeability is important.