1-relay 5V KY-019 module high-level trigger

1-relay 5V KY-019 module high-level trigger

RRP: $6.00
Price: $4
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  • ✔️ Our Azdelivery 1-Canal Relais Ky-019 module is suitable for various playful projects with Arduino, Raspberry Pi & Co.
  • ✔️ Thanks to the large voltage range of 50VAC / 5A | 30VDC / 5A is perfect for switching higher voltages using a 5V output.
  • ✔️ Thanks to the compact size, the 1 channel relay can be used in almost every project.
  • ✔️ The KY-019 relay is used to switch higher loads. The relay acts as a switch that reacts to a signal from the Arduino. For this reason, it is often used in IoT projects for control.
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Product Details

Ean 4260581553395
Product Name 1-Relais Modul HLT KY-019
Number of Items 1
Size 41,0x25,0x17,0mm
Weight 0,025kg

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Product Description

Our AZ Delivery Relais modules switch many switching processes quickly and reliably.

The KY-019 relay module is used to control AC circuits and switches them on or off.

The relay is one of the most important controls. It is an electrical switch that reacts to a signal received by the microcontroller (as in the Raspberry Pi).

Relays are widespread in remote control, communication, mechatronics devices, power electronics devices, etc. They can also be used to use electronics with high voltage/current (such as AC or DC engines or any AC devices, etc.) of electronics to separate with low voltage/current (such as microcontrollers, sensors, etc.).


  • Generously dimensioned relays in order to be able to reliably perform many switching processes.
  • Thanks to the practical fastening holes, the module can be safely installed in housings.
  • Equipped with transistor and diode to switch higher loads safely, reliably and with little electricity.
  • Additional LED that shows the switching state of the relay.

Technical specifications

Type 1-channel
Dimensions 27 mm x 34 mm
Maxium DC 5 a 30 V
Maximum ac 5 a 50 V
TTL tax signal 3.3V to 5V DC
Contact type Both: Usually closed - NC, usually open - NO

Powerful elements

The module can be used for demanding projects can be used by using a DC5V relay and an SMD optocoupler from the high-level trigger.

Quick start guide

When buying one of our high-quality products, you will also receive an inclusive e-book for a quick introduction to the world of microelectronics.

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