Overview
The SMC D-Y7P magnetic switch is a solid-state proximity sensor used for detecting piston position in pneumatic actuators and air cylinders. This 3-wire PNP autoswitch operates on 24VDC and uses magnetic field detection to signal position without mechanical moving parts. The sensor provides reliable performance in industrial automation and pneumatic motion control applications where accurate piston feedback is critical.
Key Features
- Solid-state design with no moving parts for extended service life
- PNP output configuration for direct integration with industrial controllers
- 3-wire connection for simple installation and wiring
- 0.5m (approximately 1.6 feet) pre-wired lead for flexible mounting
- Low current consumption (≤10 mA) minimizes electrical load
- Horizontal mounting orientation for standard cylinder applications
- IP67-rated construction for dusty and wet environments
Technical Specifications
- Part Number: D-Y7P
- Manufacturer: SMC Corporation
- Switch Type: Solid State Autoswitch
- Output Type: PNP
- Voltage: 24VDC
- Wire Configuration: 3-Wire
- Lead Length: 0.5m (pre-wired)
- Current Consumption: ≤10 mA
- Sensing Method: Magnetic field detection
- Mounting: Horizontal
- Operating Temperature: 0–60°C
- Protection Rating: IP67
Typical Applications
- Pneumatic cylinder end-of-stroke detection
- Air gripper position sensing
- Actuator feedback for PLC control systems
- Automated assembly line equipment
- Material handling systems
- Packaging machinery
Compatibility & Replacements
Compatible With
- SMC pneumatic cylinders and actuators (magnet-equipped models)
- 24VDC industrial control systems
- Allen-Bradley PLCs with 24VDC input modules
- Siemens S7-1200/1500 systems
- Omron PLCs and programmable controllers
- Schneider Electric automation platforms
- Any 24VDC PNP-compatible input card
Replaces / Drop-In Replacement For
- SMC D-Y7PL (long lead variant)
- SMC D-Y59 series (with system verification)
- SMC D-Y69 series (with system verification)
Works With
- SMC AHC (Auto Hand Changing System) Series MA
- Standard 24VDC PLC digital input modules
- Industrial automation control networks
- Pneumatic motion control circuits










