GP2Y0A21YK0F 10-80cm Infrared Distance Sensor


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9,500 Ks

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Detail about GP2Y0A21YK0F 10-80cm Infrared Distance Sensor

GP2Y0A21YK0F is a distance measuring sensor unit, composed of an integrated combination of PSD (position sensitive detector) , IRED (infrared emitting diode) and signal processing circuit.The variety of the reflectivity of the object, the environmental temperature and the operating duration are not influenced easily to the distance detection because of adopting the triangulation method.This device outputs the voltage corresponding to the detection distance. So this sensor can also be used as a proximity sensor.The GP2Y0A21 Sharp distance sensor is a great way to add obstacle avoidance or motion sensing to your robot or any other project. With a detection range of 4″ to 32″ (10 cm to 80 cm) and an analog voltage indicating the distance, this sensor is very easy to use.The Sharp distance sensors are a popular choice for many projects that require accurate distance measurements. This IR sensor is more economical than sonar rangefinders, yet it provides much better performance than other IR alternatives. Interfacing to most microcontrollers is straightforward: the single analog output can be connected to an analog-to-digital converter for taking distance measurements, or the output can be connected to a comparator for threshold detection. The detection range of this version is approximately 10 cm to 80 cm (4″ to 32″).


  • Distance measuring range : 10 to 80 cm 
  • Analog output type
  • Package size : 29.5×13×13.5 mm
  • Consumption current : Typ. 30 mA
  • Supply voltage : 4.5 to 5.5 V
  • Output terminal voltage : -0.3 to VCC+0.3 ( V )
  • Operating temperature : -10 to +60 ( C )
  • Simple rate : 26 Hz
  • Output voltage differential over distance range: 1.9 V (typical)
  • Update period: 38 ± 10 ms
  • Weight: 3.5 g (0.12 oz)


  • In order to stabilize power supply line, we recommend to insert a by-pass capacitor of 10μF or more between Vcc and GND near this product.
  • The lens of this device needs to be kept clean. There are cases that dust, water or oil and so on deteriorate the characteristics of this device. Please consider in actual application.
  • Please don’t do washing. Washing may deteriorate the characteristics of optical system and so on.
  • Please confirm resistance to chemicals under the actual usage since this product has not been designed against washing.


  • Touch-less switch (Sanitary equipment, Control of illumination, etc. ) 
  • Robot cleaner
  • Sensor for energy saving (ATM, Copier, Vending machine) 
  • Amusement equipment (Robot, Arcade game machine)


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GP2Y0A21YK0F 10-80cm Infrared Distance Sensor

GP2Y0A21YK0F 10-80cm Infrared Distance Sensor

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