Omron EE-SPZ401-A Photomicrosensor
Omron EE-SPZ401-A is a retro-reflective photomicrosensor designed for target sensing across a specified 200 mm distance. Its optical arrangement evaluates returned light along the sensing path, while the NPN output operates in Light-ON mode. The sensor is powered from 5 to 24 VDC, with average current consumption specified at 15 mA maximum and peak consumption at 50 mA maximum. Its output supports up to 80 mA load current, and a special connector provides removable electrical integration. A red indicator supplies visual operating feedback during use. Compared with the Dark-ON EE-SPZ301-A, this model provides alternate switching logic at the same stated range. The EE-SPZ401-A supports the retro-reflective photomicrosensor range from Omron Optical Sensor Products.

| Brand | Omron |
| Product | Photomicro Sensors |
| Model Number | EE-SPZ401-A |
Omron EE-SPZ401-A Photomicrosensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retro-reflective type |
| Sensing Distance | 200 mm |
| Power Supply Voltage | 5 to 24 VDC |
| Control Output (Output Type) | NPN |
| Connection Method | Special connector |
| Current Consumption | Average value: 15 mA max. Peak: 50 mA max. |
| Operation Mode | Light-ON |
| Control Output (Residual Voltage) | at 80 mA load current: 1.0 V max. at 10 mA load current: 0.4 V max. |
| Control Output (Load Current) | 80 mA max. |
| Indicator | Light indicator (red) |
| Ambient Temperature (Operating) | -10 to 55 ℃ |
| Ambient Temperature (Storage) | -25 to 65 ℃ |
| Ambient Humidity (Operating) | 5 to 85 % |
| Ambient Humidity (Storage) | 5 to 95 % |
| Vibration Resistance | Destruction: 10 to 55 Hz, 1.5 mm double amplitude each in X, Y, and Z directions for 2 h |
| Shock Resistance | Destruction: 500 m/s2 for 3 times each in X, Y, and Z directions |
| Degree Of Protection | IP50 |
| Material | Case: Polycarbonate (PC) Lens: Polycarbonate (PC) |
The Omron EE-SPZ401-A Photomicrosensor uses a retro-reflective optical arrangement across a specified sensing distance of 200 mm. Returned light from the optical path is evaluated by the sensor, allowing the NPN output to respond according to the stated Light-ON operating mode. The unit operates from 5 to 24 VDC, with average current consumption specified at 15 mA max. and peak current at 50 mA. Maximum load current is 80 mA, while residual voltage is listed as 1.0 V max. at an 80 mA load and 0.4 V max. at 10 mA. A red light indicator provides visual operating status, and a special connector handles the electrical interface. The supplied tabular information does not specify a reflector model or optical wavelength, so neither is assumed here.
The EE-SPZ401-A uses a polycarbonate case and polycarbonate lens and operates from -10°C to 55°C. Storage temperature is specified from -25°C to 65°C, with operating humidity from 5% to 85%. Its mechanical specifications include vibration resistance from 10 to 55 Hz at 1.5 mm double amplitude for two hours in each X, Y, and Z direction and shock resistance of 500 m/s² three times along each axis. The enclosure carries an IP50 rating. The 200 mm sensing distance, NPN output, Light-ON operation, and connector interface make it an alternative to the Dark-ON EE-SPZ configuration. For the corresponding model using Dark-ON switching, see the Omron EE-SPZ301-A.


