
SMC IL10003ST (IL100-03-ST) - Booster Relay, Rc 3/8 Port, Copper-Free High-Temperature Type
SMC IL10003ST Booster Relay — Rc 3/8 port with copper-free external parts and high-temperature (-5 to 100 C) construction. Supply pressure max. 1.0 MPa, Input/Output pressure max. 0.7 MPa, Pressure ratio 1:1, Air consumption 3 L/min (ANR) or less, Weight 0.56 kg.
MPN: IL100-03-ST · SKU: IL10003ST
IL100-03-ST Applications
The SMC IL10003ST is the copper-free, high-temperature version of the IL100 booster relay, rated to 100 C where the standard IL100 stops at 60 C. It is used in air-operated process control loops where the piping distance between the instrument and the operating area is long, or where the actuator has a large capacity, and the 1:1 booster accelerates actuation speed considerably. Typical uses are amplifying positioner output to large diaphragm and piston actuators, boosting signal lines on control valves, and driving remote pneumatic actuators. The copper-free specification suits ammonia, electronics and semiconductor plants where copper contamination must be avoided.
IL100-03-ST Specifications
| Brand | SMC | Manufacturer Part No. | IL100-03-ST |
| Product Type | Booster Relay | Series | IL100 |
| Thread Type | Rc (nil) | Port Size | 3/8 (03) |
| Accessory | None | Suffix | ST - External parts copper-free / High temperature |
| Supply Pressure | Max. 1.0 MPa | Input Pressure | Max. 0.7 MPa |
| Output Pressure | Max. 0.7 MPa | Pressure Ratio | 1:1 |
| Air Consumption | 3 L/min (ANR) or less (OUT = 0.5 MPa) | Linearity | Within +/-1% |
| Hysteresis | Within 1% | Ambient and Fluid Temperature | -5 to 100 C (high temperature specification) |
| Body Material | Aluminum alloy, silver baking finish | Weight | 0.56 kg |
IL100-03-ST Datasheet & Manual
Download Datasheet & ManualSMC IL10003ST · PDF · Official SMC documentTrusted by




