GP2A25

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Sensing Distance:	0.118" ~ 0.276" (3mm ~ 7mm) ADJ
Sensing Method:	Reflective
Sensing Object:	Black Paper, Kodak® Gray Card, White Paper
Output Configuration:	--
Sensing Light:	--
Mounting Type:	Chassis Mount
Voltage - Supply:	4.75 V ~ 5.25 V
Package / Case:	Module, Connector
Features:	Long Focal Distance

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GP2A25 Optical Sensors - Reflective - Logic Output Application Field and Working PrincipleThe GP2A25 optical sensor is a reflective logic output sensor made by Sharp Optoelectronics. It is a very popular sensor due to its low cost and high performance. This type of sensor is used in many industries ranging from automotive to medical fields.The GP2A25 logic output sensor operates on the principles of reflective sensing technology. The device consists of a light-emitting diode (LED) and a phototransistor, which are mounted in opposite directions on the same board. The LED is directed toward the target, and the phototransistor is positioned to receive reflected light from the target.When the target is close to the sensor, the phototransistor is exposed to a large optical reflection. This causes the phototransistor to become saturated, and the sensor’s output is switched to a low (L) voltage level. This low (L) output signal can then be used to activate a device or indicator.When the target moves further away from the sensor, the amount of reflected light decreases, and the sensor’s output switches back to a high (H) voltage level. This high (H) output signal can then be used to deactivate the device or indicator.The GP2A25 sensor is designed to detect objects only within a certain range. The sensing range of the device is determined by the type of LED used, as well as the characteristics of the phototransistor. For example, if a GaAs LED is used, the sensing range of the device can be reduced to 0.3mm.The GP2A25 sensor is also equipped with a number of additional features such as a built-in amplifier and noise filter. The built-in amplifier amplifies the output voltage of the phototransistor in order to compensate for any losses encountered during signal transmission. The noise filter is designed to reduce the effect of any interference or spurious signals which may be present in the output signal.The GP2A25 is an excellent choice for a variety of applications. It is ideally suited for use in automated production line operations like pick-and-place machines, as well as in non-contact switch applications. It can also be used in robotic applications such as distance measurement or obstacle detection.The GP2A25 is an affordable and reliable optical sensor which enables accurate and reliable detection of objects within a certain range. It is a very popular sensor type due to its low cost and high performance. Therefore, it is an important choice for various industrial, automotive, and medical applications.

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