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QTR-HD-01A Reflectance Sensor: 1-Channel, 5mm Wide, Analog Output
| sensors | size (mm) |
output | max current | optimal range |
|
|---|---|---|---|---|---|
| LED | board | ||||
| 1 | 5.0 × 20.0 | analog | 30 mA | 32 mA | 5 mm |
This IR LED/phototransistor pair 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 a traditional-style QTR sensor without lenses.
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Compare all products in High-Density (HD) QTR Arrays or Single-Channel QTR Reflectance Sensors.
| Description | Specs (14) | Pictures (7) | Resources (6) | FAQs (0) | On the blog (1) | Distributors (38) |
|---|
Dimensions
| Size: | 5.0 × 20.0 × 3.9 mm |
|---|---|
| Weight: | 0.25 g |
General specifications
| Maximum range: | 30 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: | 32 mA2 |
| Sensor type: | QTR |
| Sensor count: | 1 |
| Output type: | A (analog voltages) |
Identifying markings
| PCB dev codes: | irs21a3 |
|---|---|
| Other PCB markings: | 0J113573 |
Notes:
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