Pololu QTR-HD-25A Reflectance Sensor Array: 25-Channel, 4mm Pitch, Analog Output

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SKU: PO4225
GTIN: 4060137108556
Category: Distance/ToF Sensor
Manufacturers: Pololu
MPN: 4225
Storage Tiers: Maintain

Description
Reviews

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 and separate controls for the odd and even emitters. 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 50 mm. This version features the traditional-style QTR sensors without lenses.

Specifications

Dimensions: 101.0 × 16.5 × 2.5 mm (see the dimension diagram (1MB pdf) for more details)
Operating voltage: 2.9 V to 5.5 V
Sensor type: QTR
Sensor count: 25
Sensor pitch: 4 mm
Full-brightness LED current: 30 mA (independent of supply voltage)
Max board current: 405 mA
Output format: analog voltages (0 V to VCC)
Optimal sensing distance: 5 mm
Maximum recommended sensing distance: 50 mm
Weight: 6.6 g

Dimensions

Size:101.0 × 16.5 × 2.5 mm
Weight:6.6 g

General specifications

Maximum range:50 mm
Optimal range:5 mm
Minimum operating voltage:2.9 V
Maximum operating voltage:5.5 V
LED current:30 mA¹
Peak wavelength:940 nm
Maximum current draw:405 mA²
Sensor type:QTR
Sensor pitch:4.0 mm
Sensor count:25
Output type:A (analog voltages)

Identifying markings

PCB dev codes:irs45a³
Other PCB markings:0J11373³

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.

Shipping weight:	0,01 kg
Item weight:	0,01 kg
Dimensions ( Length × Width × Height ):	10,10 × 1,70 × 0,30 cm

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Pololu QTR-HD-25A Reflectance Sensor Array: 25-Channel, 4mm Pitch, Analog Output

Pololu QTR-HD-25A Reflectance Sensor Array: 25-Channel, 4mm Pitch, Analog Output

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