Product Category

Reflective Photomicrosensor with Sensitivity Adjuster (Non-modulated)

EE-SY671 / 672

Photomicrosensor with sensitivity adjuster.


EE-SY671, EE-SY672

Sensing distance

1 to 5 mm (Reflection factor: 90%; white paper 15 × 15 mm)

Sensing object

Transparent or opaque: 15 × 15 mm min.

Differential distance

0.5 max. (with a sensing distance of 3 mm, horizontally)

Light source

GaAs infrared LED with a peak wavelength of 940 nm

Indicator *1

Light indicator (red)

Supply voltage

5 to 24 VDC ±10%, ripple (p-p): 10% max.

Current consumption

40 mA max.

Control output

NPN open collector:
 Load power supply voltage: 5 to 24 VDC
 Load current: 100 mA max.
 OFF current: 0.5 mA max.
 100 mA load current with a residual voltage of 0.8 V max.
 40 mA load current with a residual voltage of 0.4 V max.

Response frequency *2

50 Hz min. (Average: 500 Hz)

Ambient illumination *3

1,500 lx max. with fluorescent light on the surface of the receiver

Ambient temperature range

Operating: - 25 to +55°C
 Storage: - 30 to +80°C

Ambient humidity range

Operating: 5% to 85%
 Storage: 5% to 95%

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: 500m/s2 for 3 times each in X, Y, and Z directions

Degree of protection


Connecting method

Special connector (direct soldering possible)


Approx. 3.5 g (including screwdriver for adjustment)



Polybutylene phthalate (PBT)




Screwdriver for adjustment

1. The indicator is a GaP red LED (peak wavelength: 690 nm).
 2. The response frequency was measured by detecting the following rotating disk. 


*3. The ambient illuminance is measured on the surface of the receiver.