QTRX-HD-03RC Reflectance Sensor Array: 3-Channel, 4mm Pitch, RC Output, Low Current
| pitch × sensors | size (mm) | output | max current | optimal range | |
|---|---|---|---|---|---|
| LED | board | ||||
| 4 mm × 3 | 13.0 × 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). 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 30 mm. This version features high-performance, low-current QTRX sensors with lenses.
Dimensions
| Size: | 13.0 × 20.0 × 3.0 mm |
|---|---|
| Weight: | 0.8 g |
General specifications
| Maximum range: | 30 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: | 9 mA2 |
| Sensor type: | QTRX |
| Sensor pitch: | 4.0 mm |
| Sensor count: | 3 |
| Output type: | RC (measurable by digital I/O) |
Identifying markings
| PCB dev codes: | irs23j3 |
|---|---|
| Other PCB markings: | 0J113793 |
Notes:
https://www.pololu.com/product/4303/resources |
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