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.

Clear

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

Code: SKU-010870

sensors size (mm) output max current optimal range connec­tor LED board 1 8.1 × 15.2 RC (digital) 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

Special Order

Shipping from $4.90

+80 more from our supplier in 7-10 days

QTRX-MD-02A Reflectance Sensor Array: 2-Channel, 8mm Pitch, Analog Output, Low Current

Code: SKU-004994

pitch × sensors size (mm) output max current optimal range LED board 8 mm × 2 13.0 × 20.0 analogue 3.5 mA 5 mA 10 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 5.95

Special Order

Shipping from $4.90

+82 more from our supplier in 7-10 days

QTRX-MD-02RC Reflectance Sensor Array: 2-Channel, 8mm Pitch, RC Output, Low Current

Code: SKU-004990

pitch × sensors size (mm) output max current optimal range LED board 8 mm × 2 13.0 × 20.0 RC (digital) 3.5 mA 5 mA 10 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 5.95

Special Order

Shipping from $4.90

+153 more from our supplier in 7-10 days

QTRX-MD-03A Reflectance Sensor Array: 3-Channel, 8mm Pitch, Analog Output, Low Current

Code: SKU-004975

pitch × sensors size (mm) output max current optimal range LED board 8 mm × 3 21.0 × 20.0 analogue 3.5 mA 9 mA 10 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 8.95

Special Order

Shipping from $4.90

+152 more from our supplier in 7-10 days

QTRX-MD-03RC Reflectance Sensor Array: 3-Channel, 8mm Pitch, RC Output, Low Current

Code: SKU-004974

pitch × sensors size (mm) output max current optimal range LED board 8 mm × 3 21.0 × 20.0 RC (digital) 3.5 mA 9 mA 10 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 8.95

Special Order

Shipping from $4.90

+147 more from our supplier in 7-10 days

QTRX-MD-04A Reflectance Sensor Array: 4-Channel, 8mm Pitch, Analog Output, Low Current

Code: SKU-004841

pitch × sensors size (mm) output max current optimal range LED board 8 mm × 4 29.0 × 20.0 analogue 3.5 mA 9 mA 10 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 10.95

Special Order

Shipping from $4.90

+65 more from our supplier in 7-10 days

QTRX-MD-04RC Reflectance Sensor Array: 4-Channel, 8mm Pitch, RC Output, Low Current

Code: SKU-004838

pitch × sensors size (mm) output max current optimal range LED board 8 mm × 4 29.0 × 20.0 RC (digital) 3.5 mA 9 mA 10 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 10.95

Special Order

Shipping from $4.90

+91 more from our supplier in 7-10 days

QTRX-MD-05A Reflectance Sensor Array: 5-Channel, 8mm Pitch, Analog Output, Low Current

Code: SKU-004995

pitch × sensors size (mm) output max current optimal range LED board 8 mm × 5 37.0 × 20.0 analogue 3.5 mA 14 mA 10 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 13.95

Special Order

Shipping from $4.90

+48 more from our supplier in 7-10 days

QTRX-MD-05RC Reflectance Sensor Array: 5-Channel, 8mm Pitch, RC Output, Low Current

Code: SKU-004991

pitch × sensors size (mm) output max current optimal range LED board 8 mm × 5 37.0 × 20.0 RC (digital) 3.5 mA 14 mA 10 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 13.95

Special Order

Shipping from $4.90

+108 more from our supplier in 7-10 days

QTRX-MD-06A Reflectance Sensor Array: 6-Channel, 8mm Pitch, Analog Output, Low Current

Code: SKU-005034

pitch × sensors size (mm) output max current optimal range LED board 8 mm × 6 45.0 × 20.0 analogue 3.5 mA 14 mA 10 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 15.95

Special Order

Shipping from $4.90

+75 more from our supplier in 7-10 days