Gravity: Magnetic Latching Relay

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

* Product wiki

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