Omron EE-SX673 Photomicrosensor
Omron EE-SX673 is a close-mounting through-beam photomicrosensor designed around a fixed 5 mm sensing slot for compact machine installations. An infrared LED provides the optical source between the integrated transmitting and receiving sections, allowing the NPN output state to change when a target passes through the opening. Dark-ON and Light-ON operation can be selected to suit different switching requirements. The sensor operates from 5 to 24 VDC and consumes 12 mA maximum. A 4-pole connector provides the electrical interface, while load short-circuit protection supports the output circuit. Fluorescent-light resistance is specified up to 1,000 lx at the receiver surface. The EE-SX673 provides close mounting within the 5 mm slot sensor range across Omron Close-Mounting Sensor Products.

| Brand | Omron |
| Product | Photomicro Sensors |
| Model Number | EE-SX673 |
Omron EE-SX673 Photomicrosensor – Technical Specifications
| Specification | Value |
|---|---|
| Appearance | Close-mounting |
| Sensing Method | Throughbeam with slot |
| Sensing Distance | 5 mm |
| Light Source | Infrared LED |
| Power Supply Voltage | 5 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Connector (4 poles) |
| Current Consumption | 12 mA max. |
| Operation Mode | Dark-ON/ Light-ON (selectable) |
| Indicators | Incident light |
| Ambient Illumination | 1,000 lx max. with fluorescent light on the surface of the receiver |
| Ambient Temperature Range | Operating: −25 to +55°C, Storage: −30 to +80°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 5% to 85%, Storage: 5% to 95% (with no icing or condensation) |
| Vibration Resistance | Destruction: 20 to 2,000 Hz (peak acceleration: 100 m/s2) 1.5-mm double amplitude for 2 h (4-min periods) each in X, Y, and Z directions |
| Shock Resistance | Destruction: 500 m/s2 for 3 times each in X, Y, and Z directions |
| Protection Circuits | Load short circuit protection |
| Degree Of Protection | IEC60529 IP50 |
| Material | Polybutylene phthalate (PBT) |
The Omron EE-SX673 Photomicrosensor uses a close-mounting body with a built-in through-beam optical path across a fixed 5 mm slot. An infrared LED supplies the sensing light, while the integrated sensing sections maintain the optical path inside the sensor body. The model operates from 5 to 24 VDC and provides an NPN output with selectable Dark-ON or Light-ON switching. Current consumption is specified at 12 mA max. A 4-pole connector provides the electrical interface, while load short-circuit protection supports the output circuit. Fluorescent-light resistance is specified up to 1,000 lx at the receiver surface under the stated condition. Its close-mounting structure supports installation near surrounding machine components where available space is limited.
For closely positioned sensing points, the EE-SX673 uses PBT as its stated housing material and carries an IP50 enclosure rating. Operating temperature extends from -25°C to 55°C, while storage ranges from -30°C to 80°C without icing or condensation. Mechanical resistance includes vibration from 20 to 2,000 Hz with peak acceleration of 100 m/s² and the specified 1.5 mm double-amplitude test sequence. Shock resistance is stated at 500 m/s² three times in each X, Y, and Z direction. The 5 mm slot, NPN output, selectable switching logic, connector interface, and close-mounting profile provide a compact configuration for machine mechanisms. For a related pre-wired close-mounting model, see the Omron EE-SX673-WR 1M.


