sensors |
size (mm) |
output |
max current |
optimal range |
LED |
board |
1 |
7.5 × 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.
Alternatives available with variations in these parameter(s):
sensor type sensor count sensor pitch output type
Select variant…
Compare all products in Medium-Density (MD) QTR Arrays.
Dimensions
Size:
|
7.5 × 20.0 × 2.5 mm
|
Weight:
|
0.35 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:
|
irs21b3
|
Other PCB markings:
|
0J113093
|
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.