The old SQ series was discontinued in July 2013.
The main points of comparison between the new and old type are as follows.
① The pilot valve has been changed. (New and old pilot valves are not interchangeable.)
② The low-wattage type (0.4 W) is now the standard specification.
③ The new valves are manifold mountable.

Non-replaceable pilot valve: SV, SQ, SZ, and SX series
Non-replaceable solenoid assembly: For VK, VT307, VT325, VT301, and VT315 series replaceable pilot valve (solenoid assembly) part numbers, refer to the respective catalogs of each series.

The SI unit mounted on an SQ series manifold is the EX140. Details on the EX140 series can be found here.
Be aware that the specifications vary depending on the communication protocol. Refer to the manual on the SMC website to check the specifications of each EX140 series SI unit.

Series 10-SQ offers major advances in valve performance for cost-effective solutions to your requirements. The series offers high flow with low power consumption in a compact design. After inspection, products are blown with high purity air (clean bench/class M3.5) in a clean enviroment. Products are sealed and shipped in anti-static double bags.

Series 10-SQ offers major advances in valve performance for cost-effective solutions to your requirements. The series offers high flow with low power consumption in a compact design. After inspection, products are blown with high purity air (clean bench/class M3.5) in a clean enviroment. Products are sealed and shipped in anti-static double bags.

Series 10-SQ offers major advances in valve performance for cost-effective solutions to your requirements. The series offers high flow with low power consumption in a compact design. After inspection, products are blown with high purity air (clean bench/class M3.5) in a clean enviroment. Products are sealed and shipped in anti-static double bags.

Series 10-SQ offers major advances in valve performance for cost-effective solutions to your requirements. The series offers high flow with low power consumption in a compact design. After inspection, products are blown with high purity air (clean bench/class M3.5) in a clean enviroment. Products are sealed and shipped in anti-static double bags.

Series 10-SQ offers major advances in valve performance for cost-effective solutions to your requirements. The series offers high flow with low power consumption in a compact design. After inspection, products are blown with high purity air (clean bench/class M3.5) in a clean enviroment. Products are sealed and shipped in anti-static double bags.

Solenoid Valve, Electrical Entry and Supply Port Position: Individual Wiring w/Supply Port on Left, Stations: 1 Station, Option: Mounting Bracket for DIN Rail, 2 Port Solenoid Valve Voltage: 24VDC, Electrical Entry of 2 Port Solenoid Valve Wiring: DIN Connector w/Indicator Light, Throttle/Manual Lock of 2 Port Solenoid Valve: w/Throttle, w/o Manual Lock, Regulator Pressure Gauge: Z2 [PSI, Sq

Solenoid Valve, Electrical Entry and Supply Port Position: Individual Wiring w/Supply Port on Left, Stations: 2 Stations, Option: Mounting Bracket for DIN Rail, 2 Port Solenoid Valve Voltage: 24VDC, Electrical Entry of 2 Port Solenoid Valve Wiring: DIN Connector w/Indicator Light, Throttle/Manual Lock of 2 Port Solenoid Valve: w/o Throttle, w/Manual Lock, Regulator Pressure Gauge: Z2 [PSI, Sq

Solenoid Valve, Electrical Entry and Supply Port Position: Individual Wiring w/Supply Port on Left, Stations: 5 Stations, Option: Mounting Bracket for DIN Rail, 2 Port Solenoid Valve Voltage: 24VDC, Electrical Entry of 2 Port Solenoid Valve Wiring: DIN Connector w/Indicator Light, Throttle/Manual Lock of 2 Port Solenoid Valve: w/o Throttle, w/o Manual Lock, Regulator Pressure Gauge: MPa, Sq

Control Unit: Regulator + 2 Port Solenoid Valve, Electrical Entry and Supply Port Position: Centralized Wiring w/Supply Port on Left, Stations: 2 Stations, Option: Bracket, 2 Port Solenoid Valve Voltage: 24VDC, Electrical Entry of 2 Port Solenoid Valve Wiring: DIN Connector, Throttle/Manual Lock of 2 Port Solenoid Valve: w/Throttle, w/o Manual Lock, Regulator Pressure Gauge: MPa, Sq.

Solenoid Valve, Electrical Entry and Supply Port Position: Centralized Wiring w/Supply Port on Right, Stations: 3 Stations, Option: Mounting Bracket for DIN Rail, 2 Port Solenoid Valve Voltage: 24VDC, Electrical Entry of 2 Port Solenoid Valve Wiring: DIN Connector w/Indicator Light, Throttle/Manual Lock of 2 Port Solenoid Valve: w/Throttle, w/Manual Lock, Regulator Pressure Gauge: MPa, Sq

Solenoid Valve, Electrical Entry and Supply Port Position: Centralized Wiring w/Supply Port on Right, Stations: 2 Stations, Option: Mounting Bracket for DIN Rail, 2 Port Solenoid Valve Voltage: 24VDC, Electrical Entry of 2 Port Solenoid Valve Wiring: DIN Connector w/Indicator Light, Throttle/Manual Lock of 2 Port Solenoid Valve: w/o Throttle, w/o Manual Lock, Regulator Pressure Gauge: Z4 [PSI, Sq

Regulator + 2 Port Solenoid Valve, Electrical Entry and Supply Port Position: Centralized Wiring w/Supply Port on Left, Stations: 2 Stations, Option: Mounting Bracket for DIN Rail, 2 Port Solenoid Valve Voltage: 24VDC, Electrical Entry of 2 Port Solenoid Valve Wiring: DIN Connector, Throttle/Manual Lock of 2 Port Solenoid Valve: w/o Throttle, w/Manual Lock, Regulator Pressure Gauge: Z4 [PSI, Sq

Unit: Regulator + 2 Port Solenoid Valve, Electrical Entry and Supply Port Position: Centralized Wiring w/Supply Port on Left, Stations: 3 Stations, Option: Bracket, 2 Port Solenoid Valve Voltage: 24VDC, Electrical Entry of 2 Port Solenoid Valve Wiring: DIN Connector w/Indicator Light, Throttle/Manual Lock of 2 Port Solenoid Valve: w/Throttle, w/o Manual Lock, Regulator Pressure Gauge: MPa, Sq

: Regulator + 2 Port Solenoid Valve, Electrical Entry and Supply Port Position: Centralized Wiring w/Supply Port on Left, Stations: 3 Stations, Option: Bracket, 2 Port Solenoid Valve Voltage: 110VAC, Electrical Entry of 2 Port Solenoid Valve Wiring: DIN Connector w/Indicator Light, Throttle/Manual Lock of 2 Port Solenoid Valve: w/Throttle, w/o Manual Lock, Regulator Pressure Gauge: MPa, Sq

Unit: Regulator + 2 Port Solenoid Valve, Electrical Entry and Supply Port Position: Individual Wiring w/Supply Port on Right, Stations: 2 Stations, Option: Bracket, 2 Port Solenoid Valve Voltage: 24VDC, Electrical Entry of 2 Port Solenoid Valve Wiring: DIN Connector w/Indicator Light, Throttle/Manual Lock of 2 Port Solenoid Valve: w/Throttle, w/o Manual Lock, Regulator Pressure Gauge: MPa, Sq

Solenoid Valve, Electrical Entry and Supply Port Position: Individual Wiring w/Supply Port on Left, Stations: 2 Stations, Option: Mounting Bracket for DIN Rail, 2 Port Solenoid Valve Voltage: 24VDC, Electrical Entry of 2 Port Solenoid Valve Wiring: DIN Connector w/Indicator Light, Throttle/Manual Lock of 2 Port Solenoid Valve: w/o Throttle, w/o Manual Lock, Regulator Pressure Gauge: MPa, Sq

Unit: Regulator + 2 Port Solenoid Valve, Electrical Entry and Supply Port Position: Centralized Wiring w/Supply Port on Left, Stations: 1 Station, Option: Bracket, 2 Port Solenoid Valve Voltage: 24VDC, Electrical Entry of 2 Port Solenoid Valve Wiring: DIN Connector w/Indicator Light, Throttle/Manual Lock of 2 Port Solenoid Valve: w/Throttle, w/o Manual Lock, Regulator Pressure Gauge: MPa, Sq