Gravity: Magnetic Latching Relay

DFRobotSKU: DFR0996
Sale price £5.70
incl. VAT
excl. VAT
Only 14 units left

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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


  • Low power consumption, 2.6mw-3.65mw
  • Noiseless
  • Trigger Pulse Width: 2ms
  • Holding function
  • 3.3V & 5V supported Arduino / ESP32 / Raspberry Pi / LattePanda


  • 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



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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