PM-T44P

PM-T44P photointerrupter is a high-sensitivity slot type transistor output sensor. It has a light-receiving diameter of 4.4 mm and is designed to detect the passage of small objects such as IC cards and coins. The integrated circuit incorporates a phototransistor to detect the presence of a small object in its slot. The sensor has an output mode of inversion, which can be connected to CMOS, TTL and other logic circuits for effective object detection.

The PM-T44P is a robust and reliable photointerrupter device that responds quickly to the passage of small objects. Its slot size ensures that even the smallest objects are detected without any difficulty. The device features an open-collector output mode and has a switching voltage of 5V and an output current of 20mA. It is also designed for a wide operating temperature range of -25℃ to +85°C.

The working principle of PM-T44P is based on the principle of slot-type photointerrupters. The sensor is composed of an emitter and a photoreceiver. The emitter emits infrared light which is focused and received by the photoreceiver. When any object passes through the slot, the light is interrupted and the amount of current flowing through the photorecevier decreases. This change in current is detected by an integrated circuit which results in inversion of the output voltage.

The PM-T44P photointerrupter is ideal for use in a variety of applications such as access control systems, coin/currency counting systems, optical switches, printer motors and image recognition systems. The device is capable of high-speed detection with a response time of less than 2ms and and a counting accuracy of 48kHz. It is also highly resistant to ambient light and is available in a range of packages including through-hole and surface-mount variants.

In summary, the PM-T44P combines high sensitivity and accuracy to provide a dependable and reliable way of detecting the passage of small objects. Its fast response speed and wide operating temperature make it an ideal choice for a wide range of applications. The device is also highly resistant to ambient light and is available in through-hole and surface-mount packages.