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PCB Sensors


Reliable Detection Unaffected by PCB Holes or Notches

Sensing method Convergent-reflective
Model E3S-LS3N(T)/-LS3P(T) E3S-LS3NW(T)/-LS3PW(T)
White paper * 20 to 35 mm (installation distance from
background: 60 mm min.)
10 to 60 mm (installation distance from
background: 120 mm min.)
Black paper * 20 to 30 mm (installation distance from
background: 60 mm min.)
15 to 50 mm (installation distance from
background: 120 mm min.)
Light source
Red LED (660 nm)
Power supply voltage 12 to 24 VDC±10%, ripple (p-p) 10% max.
Current consumption 25 mA max.
Control output Load power supply voltage: 24 VDC max.,
Load current: 100 mA max., (Residual voltage: 1 V max. for NPN output or 2 V max. for PNP output)
Open collector output configuration: NPN or PNP output depending on the model,
Operating mode: Light-ON
Protection circuits Power supply reverse polarity protection, Output short-circuit protection, Mutual interference
Response time Operate or reset: 1 ms max.
Timer function
(only models with timer
OFF-delay range: 0.1 to 1.0 s (adjustable)
Ambient illumination
(Receiver side)
Incandescent lamp: 5,000 lux max.
Ambient temperature
Operating: -10 to 55°C (with no icing or condensation)
Storage: -25 to 70°C (with no icing or condensation)
Ambient humidity range Operating: 35% to 85% (with no condensation)
Storage: 35% to 95% (with no condensation)
Insulation resistance 20 MΩ min. (at 500 VDC)
Dielectric strength 1,000 VAC at 50/60 Hz for 1 minute
Vibration resistance Destruction: 10 to 55 Hz with a 1.5-mm double amplitude for 2 hrs each in X, Y and Z directions
Shock resistance Destruction: 500 m/s2, 3 times each in X, Y and Z directions
Degree of protection IEC 60529 IP40
Connection method Pre-wired (standard length: 2 m)
Weight (packed state) Approx. 80 g
Material Case ABS (Acrylonitril Butadiene Styrene)
Lens Methacrylic resin
Accessories Instruction manual, M3 screws, Adjustment screwdriver (only models with timer function)

* For 80 × 80 mm.