LR7843 Transistor MOSFET Control Relay Replacement Module Ssr Solid State Relay
LR7843 MOSFET Control Relay Module - Solid State Relay (SSR) Replacement
- Delivery in 2 to 4 working daysFree in Islamabad & Rawalpindi above Rs 5,000
- Cash on deliveryPay when your parcel arrives
- 7-day checking warrantyDead-on-arrival items replaced
- Packed with careAnti-static & padded packaging
Highlights
- LR7843 transistor with IRF843 MOSFET for high-current switching
- Solid-state relay (SSR) design - no mechanical parts
- PWM control input for variable speed/brightness control
- Optoisolator (PC817) for electrical isolation and protection
- Screw terminal connectors for easy wiring
- Compact PCB design with clear labeling
- LED indicator for load status
- Compatible with Arduino, Raspberry Pi, and other microcontrollers
Specifications
- Wide DC power supply range
- 6-28VDC
- Main Component
- LR7843 + IRF843 MOSFET
- Power Supply Voltage
- 6-28VDC
- Control Signal
- PWM (3.3V/5V compatible)
- Isolation
- PC817 optoisolator
- Load Type
- DC motors, LED strips, resistive loads
- Switching Speed
- High-speed solid-state switching
- Terminal Type
- Screw terminals (Blue/Green)
- PCB Color
- Black
- Dimensions
- Compact module design
- Power Supply
- + (Positive), - (Negative/Ground)
- Load Connection
- Load Power (+/-), Load Ground
About this product
The LR7843 is a high-performance MOSFET-based control relay module designed as a solid-state relay (SSR) replacement for traditional mechanical relays. Featuring the LR7843 transistor and IRF843 MOSFET, this module provides reliable, fast switching for DC loads with PWM control capability, making it ideal for Arduino projects, motor control, LED dimming, and automation applications.
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•Clear labeling on PCB for easy connection
•Optoisolator isolation for microcontroller protection
•MOSFET IRF843 for high-current load switching
•Built-in flyback diode for inductive load protection
•Resistor network for proper biasing (4.7K, 100Ω, 1.7K)
•LED indicator with current-limiting resistor
•Professional PCB layout with HY-532 designation
•DC motor speed control with PWM
•LED strip dimming and control
•Solenoid and relay replacement
