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.