QTRX-MD-08A Reflectance Sensor Array: 8-Channel, 8mm Pitch, Analog Output, Low Current

Pololu item #: 4448 93 in stock
Brand: Pololu
Status: Active and Preferred 
RoHS 3 compliant
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This item could qualify for free shipping Free shipping in USA over $40 

Price break Unit price (US$)
1 9.43
5 8.68
25 7.98
100 7.34


backorders allowed

pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 8 61.0 × 20.0 analog 3.5 mA 17 mA 10 mm

This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection). It operates from 2.9 V to 5.5 V and offers dimmable brightness control independent of the supply voltage. In general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features high-performance, low-current QTRX sensors with lenses.

Alternatives available with variations in these parameter(s): sensor type sensor count sensor pitch output type Select variant…

 Description Specs (15) Pictures (7) Resources (6) FAQs (0) On the blog (1) 

Dimensions

Size: 61.0 × 20.0 × 3.0 mm
Weight: 3.1 g

General specifications

Maximum range: 40 mm
Optimal range: 10 mm
Minimum operating voltage: 2.9 V
Maximum operating voltage: 5.5 V
LED current: 3.5 mA1
Peak wavelength: 940 nm
Maximum current draw: 17 mA2
Sensor type: QTRX
Sensor pitch: 8.0 mm
Sensor count: 8
Output type: A (analog voltages)

Identifying markings

PCB dev codes: irs35j3
Other PCB markings: 0J113883

Notes:

1
Can be dynamically reduced to any of 32 available dimming levels.
2
With all LEDs on at max brightness setting.
3
Note: this does not differentiate between the A and RC output types.

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