Photoelectric Sensor BS5-K2M

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50.00 Grams
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1 unit
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Photoelectric sensors use a beam of light to detect the presence or absence of an object. This technology is used to identify the size and contrast of an object. 4 kinds of general-purpose photoelectric sensor product lines are designed to ensure advanced technology performance combined with optic & electric technology and are widely applied in various fields of industry for its optimized functions, quality, application flexibility, and reliability while remaining strongly competitive with its price among the whole industry. Application areas of photoelectric sensors include industrial automation lines, elevators, parking facilities, logistics services, semiconductor devices, packaging machines, and construction areas.

The BS5 series photo-micro sensors are available in 5 different shapes (K, T, L, Y, V types) in cable types and connector types, offering maximum flexibility for various user applications and installation settings. The sensors feature a high response frequency of 2 kHz, Light On/Dark On operation mode switching, and dust-resistant protection windows on the emitter and receiver.

BS5-K2M from Autonics is a Photoelectric Sensor with polarity NPN open-collector control output. The sensing type is through-beam (non-modulated), light ON response time max. 20µs and dark ON response time max. 100 µs, with a sensing distance of 5mm.

BS5-K2M from Autonics comes with the following properties:

  • Built-in miniature amplifier, NPN (open-collector) output.
  • Various selections by installation position.
    Appearance (K, T, L type).
  •  Light ON Dark ON selectable.
  • High-speed response freq. 2 kHz.
  • Wide range of power source 5-24 VDC.
    Easy to connect with various IC, relay, controllers, etc.
  • Dust-resistant structure: Protection by the window of emitter/receiver.
  • Red LED status indication.


Product Specifications



  • Sensing type

Transmitted beam (non-modulated).


  • Sensing Distance


Fixed 5mm.

  • Sensing target

Opaque materials of min. 0.8x1.8mm.

  • Hysteresis


  • Response time

Max. 1ms.

  • Power supply.

5-24VDC ±10% (Ripple P-P: Max 10%).

  • Current consumption

Max. 30mA (at 26.4 VDC).

  • Control output
  • NPN open-collector output :

Load voltage: max. 30VDC.

Load current: max. 200mA.

Residual voltage: max. 1.2VDC.

  • Operation mode

Selectable light ON/dark ON by control wire.

  • Operation Indicator

Red LED.

  • Connection

Connector type.

  • Light-emitting element


  • Light receiving element

Photo TR

  • Noise strength

The square wave noise by noise simulator (Voltage ±240V. period 10ms. Pulse width 1µs).

  • Dielectric strength

500VAC 50/60 Hz for 1 min.

  • Insulation resistance

Min 20MΩ (500VDC mega).

  • Vibration

1.5mm amplitude at a frequency of 10~55Hz in each of X, Y, Z directions for 2 hours.

  • Shock

500m/s2 (50G) in X, Y, Z direction for 3 times.

  • Ambient humidity

35~85 RH.

  • Storage humidity

35~85 RH.

  • Ambient illumination

Fluorescent lamp: max. 1000lux.

  • Ambient temperature

-20~+55◦C (at non-freezing Status).

  • Storage temperature


  • Protection

IP50 (IEC standard).

  • Material


  • Cable

5P, Ø6mm, length: 2m.

  • Unit weight

Approx. 30g.


Brand Information

“Autonics” is a leading provider of automation solutions from South Korea. They develop and manufacture a wide range of automation products that are marketed worldwide. Their core products include various sensors, controllers, and motion devices, measuring equipment, laser marking systems, connection equipment, and more. Autonics products are trusted and adopted by engineers in various industrial applications and their technology is widely applied in day-to-day automation devices.

With 12 international offices in South Korea, China, Japan, India, Vietnam, Indonesia, Malaysia, Russia, Turkey, USA, Brazil, Mexico, Autonics is able to provide comprehensive automation solutions for their customers across the globe.

Data Sheet

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Warranty Information

One Year Warranty
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