KY-021 mini magnetic reed-switch module
20,30 kr
29,00 kr
39 in stock
Quantity
Dispatched from Aarhus, Denmark. Shipping calculated at checkout.
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KY-021 mini magnetic reed-switch module
20,30 kr
29,00 kr
Simple, reliable magnetic switching
This sensor uses a magnetic contact called a reed switch. Two contacts meet when a magnetic field comes close.
A 10kΩ pull-down resistor holds the output at ground while the normally open reed switch is inactive. Bringing a magnet close closes the connection to the supply voltage.
Use it for contactless switching, such as detecting a closed door or controlling electronics through a waterproof barrier.
This passive sensor draws no current when no magnetic field is present.
For a version with a comparator, see thes largersibling here.
Technical specifications
|
IC |
Reed switch |
|
Operating voltage |
2.7-6.5V |
|
I/O voltage |
2.7-6.5V |
| Maximum current consumption | 6.5mA |
| Communication interface | Binary, active high |
| Dimensions | 32mm x 17mm x 8mm |
| Online resources for the module | Link |
What's included?
- KY-021 magnetic reed switch
Warranty and shipping
We do our best to test all electronics before sending them to you.
This helps us deliver reliable products and saves you unnecessary trouble during development. Faults can occur, although we encounter them very rarely. If you have a problem with the equipment you ordered, you can always contact us, and we'll gladly help you resolve it.
We dispatch from Aarhus to Denmark and Sweden. Shipping options and prices are shown at checkout. Delivery time depends on availability, destination and shipping method; contact us before ordering if you need an item by a specific date.
