Overview
The SMC D-M9P is a compact solid state auto switch engineered for direct mounting on pneumatic cylinders and automated machinery. This 3-wire PNP in-line sensor offers non-contact magnetic field detection for precise position monitoring. Built with flexible cable construction and a 0.5m lead wire, the D-M9P delivers reliable switching functionality in industrial control applications without the wear and maintenance issues of mechanical reed switches.
Key Features
- 3-Wire PNP Output — Direct compatibility with PLC, relay, and IC circuit loads
- In-Line Configuration — Compact profile ideal for tight mounting spaces
- 0.5m Flexible Lead Wire — Oilproof heavy-duty vinyl cord with integrated connector options
- Wide Voltage Range — Operates on 5, 12, or 24 VDC (4.5–28 VDC nominal)
- Red LED Indicator — Visual status confirmation when sensor activates
- Grommet Entry — Allows integration into cable management systems
Technical Specifications
- Output Type: 3-Wire PNP
- Power Supply Voltage: 5, 12, 24 VDC (4.5–28 VDC range)
- Current Consumption: 10 mA or less
- Load Voltage: 28 VDC or less
- Maximum Load Current: 40 mA
- Internal Voltage Drop: 0.8 V or less at 10 mA; 2 V or less at 40 mA
- Leakage Current: 100 µA or less at 24 VDC
- Lead Wire Type: Oilproof flexible vinyl cord, ø2.7 × 3.2 mm ellipse, 3 cores, 0.5 m length
- Mounting Style: Direct mounting with grommet entry
- Dimensions (L×W×H): 22 × 4 × 4.6 mm
- Weight: 8 g
- Standards: CE, IEC 529, JIS C 0920
Typical Applications
The SMC D-M9P is widely used in industrial pneumatic automation for:
- Cylinder position detection on CG1, CJ2, CM2, CQ2, MGP, MH, and MX series actuators
- PLC and relay control feedback in manufacturing assembly lines
- Machine tool automation and material handling systems
- Factory automation requiring reliable non-contact sensing
- Condition monitoring in harsh, oil-laden industrial environments
Compatibility & Replacements
Compatible With
- SMC CG1, CJ2, CM2, CQ2, MGP, MH, MX series cylinders
- NCA1 and NCQ2 gripper/actuator models
- Standard PLC input modules (NPN sensors supported)
- 24 VDC relay circuits and IC circuit loads
- Industrial automation control systems with PNP sensor inputs
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator before ordering. The D-M9P is a standard series component; confirm the exact variant suffix (SAPC, WSAPC, etc.) matches your original application.
Works With
- Pneumatic control valves and solenoid actuators
- SCADA and distributed control systems (DCS)
- Allen-Bradley, Siemens, Mitsubishi, and Omron PLC platforms with PNP sensor input modules
- EtherNet/IP and PROFIBUS gateways for remote monitoring
- Industrial fieldbus networks supporting standard analog/digital I/O






