FEATURES

• Package type: surface-mount

• Detector type: phototransistor

• Dimensions (L x W x H in mm): 5.5 x 4 x 5.7

• Gap (in mm): 3

• Aperture (in mm): 0.3

• Channel distance (center to center): 0.8 mm

• Typical output current under test: IC = 1.5 mA

• Emitter wavelength: 950 nm

• Lead (Pb)-free soldering released

• Moisture sensitivity level (MSL): 1

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

APPLICATIONS

• Accurate position sensor for encoder

• Sensor for motion, speed and direction

DESCRIPTION

The VT172U is a compact transmissive sensor that includes

an infrared emitter and two phototransistor detectors,

located face-to-face in a surface-mount package. VT172U

is released for operating temperature ranges from -25 °C

to +85 °C.