LR7843 N-Channel MOSFET Control Module — 161A, PWM Compatible

LR7843 N-Channel MOSFET Control Module — 161A, PWM Compatible

The LR7843 MOSFET control module is built around the LR7843 N-channel MOSFET — rated at an exceptional 161A / 30V. Control ultra-high-current DC loads directly from an Arduino digital or PWM pin with 3.3V or 5V logic. Supports PWM speed control for large motors and high-power LED arrays. Screw terminals for secure high-current connections.

Key Specifications

• MOSFET: LR7843 N-channel | Max current: 161A | Max voltage: 30V
• On-resistance: 3.3mΩ | Logic input: 3.3V / 5V
• PWM: Yes | Screw terminals: Load + / Load − / GND
• Compliance: RoHS compliant

Why Choose This?

• ✅ 161A rated — switch the highest-current DC loads
• ✅ 3.3mΩ on-resistance — minimal heat generation at high currents
• ✅ 3.3V/5V logic — direct Arduino control, no level shifter needed
• ✅ PWM compatible — smooth speed and brightness control

Typical Applications

• High-current DC motor speed control
• Large LED array and strip dimming
• High-power heater and solenoid switching
• Battery bank load switching

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