EE-SPX401 Miniature Slot Photoelectric Sensor, NPN Light-ON, 5-24 VDC - Single Unit

This listing is for a single EE-SPX401 miniature slot (through-beam) photoelectric sensor. The series is commonly used for PCB or connector mounting in small-target detection and retrofit applications. The sensor typically operates from about 5-24 VDC (check the exact variant spec) and is supplied as a compact connector-type package. Because some marketplace listings use EE-SPX303N, EE-SPX301 and EE-SPX401 interchangeably, confirm the mechanical pinout and package dimensions against your equipment before ordering to ensure proper fit and function.

• Compatibility: Replacement for series slot photomicrosensors including EE-SPX401, EE-SPX303N, EE-SPX301 and EE-SPY402 where mechanical pinout and package match; confirm fit before installation.
• Sensing method: Slot / through-beam photomicrosensor (slot-type) with series slot width ≈ 3.6 mm for detecting small opaque targets; modulated IR emitter (~940 nm) with red indicator for alignment.
• Electrical: NPN voltage output, Light-ON operation; series supply range typically 5-24 VDC (verify exact value for your variant) and observe correct polarity when wiring.
• Mounting & form factor: Miniature connector-type package intended for PCB or connector mounting; sold individually as a single sensor unit (1 piece).
• Notes: Many marketplace listings use EE-SPX303N / EE-SPX401 interchangeably-check model marking, connector pinout and mechanical dimensions before replacing or retrofitting.