![]() ![]() It is relatively cheap and has very low thermal resistance, added to this the mosfet also has good switching speeds and hence can be used in DC-DC converter circuits. The Mosfet requires a driver circuit to provide 10V to the gate pin of this Mosfet the simplest driver circuit can be build using a transistor. ![]() Hence this mosfet cannot be used in applications where high switching efficiency is required. One considerable disadvantage of the IRF740 Mosfet is its high on-resistance (RDS) value which is about 0.55 ohms. ![]() If you prefer a mosfet with low gate voltage then try IRF540N or 2N7002 etc. Since the mosfet is for switching high current high voltage loads it has a relatively high gate voltage, hence cannot be used directly with a I/O pin of a CPU. The Mosfet could switch loads that consume upto 10A, it can turned on by provide a gate threshold voltage of 10V across the Gate and Source pin. The IRF740 is an N-Channel Power MOSFET which can switch loads upto 400V. Note: Complete technical details can be found at the IRF740 datasheet linked at the bottom of the pageīSS138, IRF520, 2N7002, BS170, BSS123, IRF3205, IRF1010E
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