MALVERN, PA — Vishay Intertechnology, Inc. (NYSE: VSH) said it has expanded its transmissive sensor portfolio with the launch of two new surface-mount devices designed for industrial, consumer, and telecommunications applications, reinforcing its push into compact, high-performance sensing solutions.
The newly introduced single-channel VT171P and dual-channel VT172U feature a compact 5.5 mm by 4 mm by 5.7 mm package and a dome height that is 42 percent higher than previous-generation industrial devices. Vishay said the increased dome height provides greater mechanical design flexibility, particularly in applications requiring more vertical clearance, such as turn-and-push encoders using large code wheels.
The sensors are designed to serve as position sensors in a wide range of systems, including industrial automation equipment, drives, and power tools, as well as consumer entertainment products, appliances, health and personal care devices, and mobile broadband routers. Both devices can detect motion and speed, while the dual-channel VT172U also enables direction detection.
The VT171P integrates an infrared emitter and phototransistor detector in a face-to-face configuration, while the VT172U combines an infrared emitter with two phototransistor detectors. Both devices operate at a wavelength of 950 nanometers and deliver a typical output current of 1.5 milliamps. They feature a 3-millimeter gap width, 0.3-millimeter apertures, and fast response times, with typical rise and fall times of 14 microseconds and 21 microseconds, respectively.
Vishay said the sensors are rated Moisture Sensitivity Level 1, providing unlimited floor life, and are compatible with lead-free reflow soldering processes under JEDEC-STD-020. The devices are also halogen-free, RoHS-compliant, and meet the company’s Vishay Green standards.
The product expansion highlights Vishay’s continued investment in miniaturized components aimed at supporting increasingly compact and performance-driven electronic designs across multiple end markets.
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