MOSFET IRFZ44N 49A 55V TO-220

MOSFET, or metal-oxide-semiconductor field-effect-transistor, is a four-terminal semiconductor device used for switching and amplifying signals. MOSFETs are voltage-controlled devices. This means in order to use them, you need first to overcome a threshold voltage. Beginners often stick to MOSFETS for this particular feature. Because compared to BJT (Bipolar Junction Transistor), which is current-controlled, you can directly drive a MOSFET using a microcontroller pin's voltage.

To demonstrate, to drive a BJT, you need to calculate first the value of the base resistor. Whereas in a MOSFET, just apply enough voltage to the gate and the switch triggers. If you wish to use a MOSFET with an Arduino, it is always a standard procedure to include at least a 220 ohms resistor to limit the current. It is because MOSFETs are highly capacitive. It can draw high instantaneous current when you turn it on, which can damage your board. 

Specifications

• Advanced Process Technology
  
• Ultra-Low On-Resistance
  
• Dynamic DV/DT Rating
  
• 175°C Operating Temperature
  
• Fast Switching
  
• Fully Avalanche Rated

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