Medium Density (MD) QTR Arrays

Medium Density (MD) QTR Arrays

Medium-density reflectance arrays pair IR emitters with phototransistors at modest spacing for reliable line sensing, edge detection, surface contrast measurement and short-range proximity tasks. Multi-channel strips let systems compute a line centroid or scan across a surface while single-channel modules suit spot checks or distributed sensing.

Analogue outputs provide graduated reflectance values for precise position and calibration. RC-style digital outputs give simple thresholded signals with timing-based reading. Variants include long-range and low-current options, and differences in pitch, board size and LED drive affect footprint, detection distance, power draw and integration effort. These modules are compact, easy to mount and interface directly with common microcontrollers.

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QTR-MD-13A Reflectance Sensor Array: 13-Channel, 8mm Pitch, Analog Output

Code: SKU-005324

pitch × sensors size (mm) output max current optimal range LED board 8 mm × 13 101.0 × 16.5 analogue 30 mA 220 mA 5 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 20.95

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QTR-MD-13RC Reflectance Sensor Array: 13-Channel, 8mm Pitch, RC Output

Code: SKU-005320

pitch × sensors size (mm) output max current optimal range LED board 8 mm × 13 101.0 × 16.5 RC (digital) 30 mA 220 mA 5 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 20.95

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QTR-MD-16A Reflectance Sensor Array: 16-Channel, 8mm Pitch, Analog Output

Code: SKU-005313

pitch × sensors size (mm) output max current optimal range LED board 8 mm × 16 125.0 × 16.5 analogue 30 mA 250 mA 5 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 24.95

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QTRXL-MD-01A Reflectance Sensor: 1-Channel, 7.5mm Wide, Analog Output, Long Range

Code: SKU-004920

sensors size (mm) output max current optimal range LED board 1 7.5 × 20.0 analogue 30 mA 32 mA 20 mm This IR LED/phototransistor pair is great for precisely identifying changes in reflectance (like line detection).

$ 4.35

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QTRXL-MD-01A-S Reflectance Sensor: 1-Channel, 8mm Wide, Analog Output, Long Range, Side-Entry Connector

Code: SKU-010897

sensors size (mm) output max current optimal range connec­tor LED board 1 8.1 × 15.2 analogue 30 mA 32 mA 20 mm side-entry This sensor uses an IR LED and a phototransistor to measure the light reflected from nearby surfaces.

$ 5.95

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QTRXL-MD-01RC Reflectance Sensor: 1-Channel, 7.5mm Wide, RC Output, Long Range

Code: SKU-004918

sensors size (mm) output max current optimal range LED board 1 7.5 × 20.0 RC (digital) 30 mA 32 mA 20 mm This IR LED/phototransistor pair is great for precisely identifying changes in reflectance (like line detection).

$ 4.35

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QTRXL-MD-01RC-S Reflectance Sensor: 1-Channel, 8mm Wide, RC Output, Long Range, Side-Entry Connector

Code: SKU-010896

sensors size (mm) output max current optimal range connec­tor LED board 1 8.1 × 15.2 RC (digital) 30 mA 32 mA 20 mm side-entry This sensor uses an IR LED and a phototransistor to measure the light reflected from nearby surfaces.

$ 5.95

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QTRX-MD-01A Reflectance Sensor: 1-Channel, 7.5mm Wide, Analog Output, Low Current

Code: SKU-004916

sensors size (mm) output max current optimal range LED board 1 7.5 × 20.0 analogue 3.5 mA 5 mA 10 mm This IR LED/phototransistor pair is great for precisely identifying changes in reflectance (like line detection).

$ 4.20

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QTRX-MD-01A-S Reflectance Sensor: 1-Channel, 8mm Wide, Analog Output, Low Current, Side-Entry Connector

Code: SKU-010883

sensors size (mm) output max current optimal range connec­tor LED board 1 8.1 × 15.2 analogue 3.5 mA 5 mA 10 mm side-entry This sensor uses an IR LED and a phototransistor to measure the light reflected from nearby surfaces.

$ 5.95

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QTRX-MD-01RC Reflectance Sensor: 1-Channel, 7.5mm Wide, RC Output, Low Current

Code: SKU-004914

sensors size (mm) output max current optimal range LED board 1 7.5 × 20.0 RC (digital) 3.5 mA 5 mA 10 mm This IR LED/phototransistor pair is great for precisely identifying changes in reflectance (like line detection).

$ 4.20

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+299 more from our supplier in 7-10 days