PM-F25-C3

Series:	PM-25
Part Status:	Active
Sensing Distance:	0.236" (6mm)
Sensing Method:	Transmissive
Output Configuration:	NPN - Open Collector
Mounting Type:	Chassis Mount
Current - Supply:	15mA
Voltage - Supply:	5 V ~ 24 V
Response Time:	20µs
Operating Temperature:	-25°C ~ 55°C (TA)
Package / Case:	Module, Wire Leads, Slot Type

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IntroductionThe PM-F25-C3 optical sensors are a type of photointerrupter that provides an output signal when an object passes through the slot type opening. This type of sensor is used to detect the presence or lack of a certain type of object, and its binary output can be used to provide a logic indication of an object\'s presence or absence. The PM-F25-C3 is used in applications ranging from industrial sensor control, to security system monitoring, to light actuation.Application FieldThe PM-F25-C3 is an ideal solution for sensing objects in areas with limited accessibility or orientation, or for fairly precise sensing of a specific gap size. It is suited for detecting various objects of various opacity, including people, machinery, and other objects, including solids and liquids.The sensor is often used for non-contact detection in industrial settings, where it is often used to detect objects such as small parts and printed circuit boards. In security installations, the sensor is often used to detect the presence of people or allow keyholes. For lighting purposes, PM-F25-C3 can be used to trigger lighting on and off based on the presence of people.Working PrincipleThe PM-F25-C3 operates by using an LED (light-emitting diode). When an object passes through the slot type opening, it interrupts the light emitted from the LED. This interruption is detected by the phototransistor, and its binary output provides a logic indication of the object\'s presence or absence.The photointerrupter\'s operation is based on the principle of photoelectricity, which states that when light shines on a phototransistor, an electric current is generated proportional to the intensity of the light. This electric current changes the circuit’s status, which is detected by the integrated circuit, resulting in a logic output of either 0 or 1.Design LimitsThe PM-F25-C3 sensors are designed to be reliable and durable, with a wide operating temperature range of -40 to 85°C. It has a duty cycle of 1:10, and a switching current of 1mA to 50 mA, making it suitable for a variety of applications. It is also rated for an operating life of up to 10 million cycles.ConclusionThe PM-F25-C3 optical sensor is a type of photointerrupter that provides an output signal when an object passes through its slot type opening. It is used in a variety of applications, ranging from industrial to security, and its binary output can be used to provide a logic indication of an object\'s presence or absence. This type of sensor is reliable, durable, and has a wide operating temperature range, making it a suitable choice for a variety of sensing applications.

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