Vishay Semiconductors TCxT1350X01 Subminiature Transmissive Optical Sensors are AEC-Q101-qualified, surface-mount transmissive optical sensors for automotive and industrial applications. Designed for harsh low- and high-temperature environments, the single-channel TCPT1350X01 and dual-channel TCUT1350X01 feature a wide operating temperature range of -40ºC to +125ºC. With a 3.0mm gap width, the devices can be used with a wide variety of materials and allow for looser mechanical tolerances than sensors with smaller gaps, making them ideal for automotive and industrial applications. The single-channel TCPT1350X01 includes an infrared emitter and phototransistor detector located face-to-face in a surface-mount package, while the dual-channel TCUT1350X01 includes an infrared emitter and two phototransistor detectors. Both sensors can detect motion and speed. With dual channels, the TCUT1350X01 can also be used to detect direction in applications such as electronic power steering (ESP) systems.