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Gravity: Magnetic Latching Relay
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A Magnetic latching relay is a new type of relay. It features low power dissipation and is noiseless. Unlike other non-latching relays, the latching relay needs two digital pulse signals to switch the ON/OFF state.
This DFRobot Gravity: magnetic latching relay is compatible with most popular microcontrollers, such as ESP32 / Arduino / Raspberry Pi. It can be used to remake home appliances or lighting controls, like smart electricity meters, lighting, sockets, switches, and so on.
Connection Example - Magnetic Latching Relay and Arduino
Features
- Low power consumption, 2.6mw-3.65mw
- Noiseless
- Trigger Pulse Width: 2ms
- Holding function
- 3.3V & 5V supported Arduino / ESP32 / Raspberry Pi / LattePanda
Specifications
- Signal Level: 3.3V, 5V
- Power Voltage: 3.3V-5V DC
- Trigger Pulse Width: 2ms
- Static Current: 0.73mA - 0.8mA(@3.3V-5V）
- Coil Operating Current: 137mA(3.3V), 93mA(5V)
- Contact Resistance: ≤100mΩ (1A 6V DC)
- Contact Material: AgSnO2
- Contact Load: 10A 36V AC (Resistive), 15A 36V AC (Incandescent lamp)
- Max Switching Voltage: 36V AC/30V DC
- Max Switching Current: 10A
- Max Switching Power: 36VA/300W
- Coil Rated Power: 0.4W
- Relay Action Time(@Rated Voltage): ≤8ms
- Relay Reset Time(@Rated Voltage): ≤5ms
- Operating Humidity Range: 5%-85%RH
- Operating Temperature Range: -40℃-85℃
- Product Dimension(Package Not Included): 42×32mm
Resources
Pinout
| Num | Label | Description |
| A | Trigger End A | Provide the pulse with a width of more than 2ms to reverse relay state |
| + | Positive | 3.3V-5V |
| - | Negative | |
| B | Trigger End B | Provide the pulse with a width of more than 2ms to reverse relay state |
| + | Positive | 3.3V-5V |
| - | Negative | |
| A | Relay Contact A | |
| COM | Relay Common end | |
| B | Relay Contact B |
Package Contents
- 1x Magnetic Latching Relay
- 2x 3Pin Gravity Wire
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