Omron E3FA-DP23 Diffuse-reflective Photoelectric Sensor
The Omron E3FA-DP23 is a Diffuse-reflective Photoelectric Sensor engineered for precise non-contact object detection in industrial automation environments. Designed with a cylindrical M18 housing, this sensor provides a reliable 1 m sensing distance using a red LED light source and supports both Light-ON and Dark-ON operation modes. With a PNP output, an M12 connector, and a wide 10 to 30 VDC power supply range, it integrates seamlessly into standard control circuits. Manufactured by Omron, the E3FA-DP23 belongs to the Omron Photoelectric Sensors, known for robust construction, fast response, and stable optical performance.

| Brand | Omron |
| Product | Photoelectric Sensor |
| Model Number | E3FA-DP23 |
Omron E3FA-DP23 Diffuse-reflective Photoelectric Sensor â Technical Overview
| Specification | Value |
|---|---|
| Sensing Method | Diffuse reflective |
| Sensing Distance | 1 m |
| Output | PNP |
| Connection Method | M12 Connector |
| Operation Mode | Light-ON / Dark-ON |
| Light Source | Red LED |
| Response Time | 0.5 ms |
| Power Supply | 10 to 30 VDC |
| Degree of Protection | IP67 / IP69K |
| Material | ABS |
The Omron E3FA-DP23 is widely recognized as an Omron diffuse-reflective photoelectric sensor designed for consistent and accurate object detection in industrial automation systems. Featuring a PNP output and a fast 0.5 ms response time, the sensor delivers reliable switching performance in high-speed applications. Its 1 m diffuse-reflective sensing range enables dependable detection without the need for external reflectors.
In industrial applications, the Omron E3FA-DP23 photoelectric sensor is commonly used in conveyor systems, assembly lines, packaging machines, and inspection stations where non-contact sensing is required. The M18 threaded housing provides mechanical stability, while the M12 connector allows secure and convenient electrical connection in control panels. With an IP67/IP69K protection rating, the sensor supports operation in dusty, wet, and washdown environments, ensuring suitability for continuous industrial use.
Designed for long-term operational reliability, the E3FA-DP23 operates on a 10 to 30 VDC power supply with low current consumption and stable optical output. Its red LED light source and dual operation modes allow accurate detection of objects with varying surface characteristics. Automation professionals rely on this sensor for dependable diffuse-reflective sensing in demanding industrial conditions.