Z44N MOSFET (PACK OF 2)

🔧 Key Features and Specs

• Type: N-channel enhancement-mode power MOSFET in a TO-220 package

• V_DSS (Drain‑Source Voltage): 55 V

• I_D (Continuous Drain Current): 49 A (up to ~160 A pulsed)

• R_DS(on): ~17.5 mΩ at V_GS = 10 V (reference datasheet)

• V_GS(th) (Threshold): 2–4 V typical; not a true logic-level MOSFET – requires ~10 V for full conduction

• Gate Charge (Q_G): ~42–63 nC, influencing switching speed

• Power Dissipation (P_D): ~94 W (junction limited)

• Operating Temperature: –55 °C to +175 °C, avalanche-rated

• Switching Times: Rise ~60 ns, fall ~45 ns

📍 Pinout (Front view, flat side facing you; leads down)

1. Gate – controls the channel

2. Drain – power in

3. Source – power out/ground

🔎 Functional Highlights

• Low R_DS(on): Reduces heat and improves efficiency.

• Fast Switching: Ideal for PWM and high-frequency applications (though gate charge requires drive circuits).

• Robust Construction: Avalanche-rated with high thermal tolerance.

• Size & Mounting: TO-220 case allows for easy heat-sinking.

⚙️ Common Applications

• Motor controllers

• Switch-mode power supplies / converters

• DC–DC converters

• Audio amplifiers / lighting controls

• High-current switching circuits

🛠︎ Driving Notes

• It isn’t a true logic-level MOSFET, so for microcontrollers operating at 3.3–5 V, using a gate driver or opting for a logic-level variant (e.g., IRLZ44N) is recommended

• Gate must charge/discharge properly (use pull-down/up resistors to avoid floating).

✅ Summary

The Z44N / IRFZ44N is a versatile and rugged power MOSFET designed for high-current, high-power applications. With a low on-resistance and fast switching, it fits well in motor drivers, converters, and switching regulators. Just be mindful to drive its gate properly to ensure safe and efficient operation.