Seeed Studio
Seeed Studio CJQ4435 Grove MOSFET Transducer 5V 15V 40x20mm 14g
Controls 5–15 V loads from a 5 V microcontroller via Grove with 5 MHz switching
- TypeSensors
- Controls 15V loads from a 5V microcontroller
- Switches up to 5MHz, far faster than mechanical relays
- Two screw terminals separate external power from the driven device
- Grove connector gives plug-and-play wiring with no soldering
- Compact 40x20mm board weighs only 14g
Compact MOSFET Switch for Microcontrollers
The Seeed Studio CJQ4435 Grove MOSFET module lets a 5V microcontroller switch loads powered from an external 5V to 15V supply. It plugs directly into a Grove port, so hobbyists and prototype builders can add high-side switching without soldering or custom PCBs. The board measures 40mm by 20mm and weighs 14g, making it easy to fit inside tight enclosures or breadboard layouts.
Two Screw Terminals Simplify Wiring
One terminal block connects the external power source, the other connects the load you want to control. This arrangement isolates the microcontroller from the higher voltage rail while still allowing the load to draw from the microcontroller via the Grove connector if the external supply is absent. The plug-and-play Grove cable carries the control signal, so no extra driver circuitry or jumper wires are required.
Switches Up to 15V Loads at 5MHz
The CJQ4435 transistor supports switching frequencies up to 5MHz, far faster than a mechanical relay, enabling PWM dimming or rapid on-off cycling. It comfortably handles resistive or inductive loads within the 5V to 15V input range, but it is not suited for voltages above 15V or for applications requiring galvanic isolation between control and load circuits.
Highlights
- Controls 15V loads from a 5V microcontroller
- Switches up to 5MHz, far faster than mechanical relays
- Two screw terminals separate external power from the driven device
- Grove connector gives plug-and-play wiring with no soldering
- Compact 40x20mm board weighs only 14g
Specifications
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Questions about this item
Will the CJQ4435 MOSFET itself need replacement after long-term switching?
The CJQ4435 is a solid-state transistor with no moving parts, so it does not wear out mechanically and requires no scheduled replacement under normal 5 V to 15 V operation.
What limits continuous operation first — current handling or thermal dissipation?
The board’s screw-terminal layout and 14 g weight indicate modest copper area, so thermal dissipation will become the practical limit before the MOSFET’s intrinsic current rating is reached.
How much heat and power draw should I expect when the module runs all day at 15 V?
The MOSFET switches at up to 5 MHz with low on-resistance, so heat stays minimal and the only continuous draw is the microcontroller’s 5 V logic supply through the Grove connector.
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