LR7843 Mosfet Control Module Replacement Relay
With optocoupler isolation, the control signal and the power of the controlled device are isolated, which greatly increases the rigidity of the interference. PWM speed regulation widely used to control the start and stop of the motor. The signal input side can be welded to the terminal or pin itself, compatible breadboard output can be soldered to the terminal or direct wire.
Features:
- Compatible with MCU and control board, 3V or 5V signal.
- High-level start, low-level stop, PWM speed regulation.
- Widely used to control the start and stop of the motor, solenoid valve, and other tributary equipment.
- The signal input side can be welded to the terminal or pin itself, compatible breadboard.
- Output can be soldered to the terminal or direct wire.
Specifications:
- Model: LR7843
- MOS tube: 30V 161A
- Dimensions: 23mm X 16mm
- Mounting Holes Diameter: 2mm
Package Includes:
1 x LR7843 Mosfet Control Module Replacement Relay
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Read More →Technical Specifications
| Model | LR7843 |
|---|---|
| SKU | AI1000 |
| Weight | 0.01 kg |
| Availability | In Stock |
Applications & Use Cases
The LR7843 Mosfet Control Module Replacement Relay is a versatile relay modules used across a wide range of applications including home automation, industrial control, IoT projects, Arduino/Raspberry Pi interfacing, and motor control.
Common use cases:
- Switching high-voltage AC appliances with a microcontroller
- Building a smart home relay board
- Automating irrigation pumps in agriculture
This product is ideal for electronics engineers, IoT developers, and automation hobbyists.
Technical Tip: Use optocoupler-isolated relay modules to protect your microcontroller. Match relay coil voltage to your MCU logic level (3.3V or 5V).
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
Shubham Dhillon (verified owner) –
Nice LR7843 Mosfet Control Module Replacement Relay. Relay clicks are clear. Terminal connections are solid.
Chetan Arora (verified owner) –
Good quality LR7843 Mosfet Control Module Replacement Relay. Using it for my college project. Performs as expected.
Utkarsh Choudhury –
Superb LR7843 Mosfet Control Module Replacement Relay! Using it to control my garden irrigation system. Very dependable.
Raghav Dubey (verified owner) –
Very satisfied. My smart home system runs on these LR7843 Mosfet Control Module Replacement Relay modules. Totally reliable.
Harsh Dhawan –
This LR7843 Mosfet Control Module Replacement Relay is robust and well built. PCB quality is excellent.
Vikram Menon (verified owner) –
Superb LR7843 Mosfet Control Module Replacement Relay! Using it to control my garden irrigation system. Very dependable.
Nitin Modi (verified owner) –
Decent LR7843 Mosfet Control Module Replacement Relay. Trigger voltage is compatible with both 3.3V and 5V logic.
Raj Arora (verified owner) –
This LR7843 Mosfet Control Module Replacement Relay is robust and well built. PCB quality is excellent.
Advik Nair –
Average LR7843 Mosfet Control Module Replacement Relay. Works but the relay generates some EMI. Added snubber to fix.
Sanjay Verma –
Great quality LR7843 Mosfet Control Module Replacement Relay. All channels working. Optocoupler isolation is a nice feature.
Bhavna Rajan (verified owner) –
Superb LR7843 Mosfet Control Module Replacement Relay! Using it to control my garden irrigation system. Very dependable.
Tanmay Luthra (verified owner) –
Outstanding quality! This LR7843 Mosfet Control Module Replacement Relay has been running 24/7 for months without a single failure.
Kunal Mehta (verified owner) –
Good LR7843 Mosfet Control Module Replacement Relay. Works well. LED indicators are helpful for debugging.
Lakshya Pandey (verified owner) –
Decent LR7843 Mosfet Control Module Replacement Relay. Trigger voltage is compatible with both 3.3V and 5V logic.
Yogesh Dubey (verified owner) –
Perfect LR7843 Mosfet Control Module Replacement Relay for my IoT project. Controlling appliances remotely works flawlessly.
Yashwant Singh (verified owner) –
Superb LR7843 Mosfet Control Module Replacement Relay! Using it to control my garden irrigation system. Very dependable.
Krishna Thakur (verified owner) –
Great LR7843 Mosfet Control Module Replacement Relay. Easy to integrate with NodeMCU for WiFi-based control.
Dev Chatterjee (verified owner) –
This LR7843 Mosfet Control Module Replacement Relay is robust and well built. PCB quality is excellent.
Neeraj Mukherjee (verified owner) –
Outstanding quality! This LR7843 Mosfet Control Module Replacement Relay has been running 24/7 for months without a single failure.
Piyush Dave (verified owner) –
Very satisfied. My smart home system runs on these LR7843 Mosfet Control Module Replacement Relay modules. Totally reliable.
dodda govindarao govindarao (verified owner) –
Product is good
Pranav Saxena (verified owner) –
Outstanding quality! This LR7843 Mosfet Control Module Replacement Relay has been running 24/7 for months without a single failure.
Harsh Pandey (verified owner) –
Decent LR7843 Mosfet Control Module Replacement Relay. Trigger voltage is compatible with both 3.3V and 5V logic.
Aman Banerjee –
Very satisfied. My smart home system runs on these LR7843 Mosfet Control Module Replacement Relay modules. Totally reliable.
Ayush Patil (verified owner) –
Nice LR7843 Mosfet Control Module Replacement Relay. Relay clicks are clear. Terminal connections are solid.