Original IRF840 MOSFET N-Ch (500V, 8A)

Description

The IRF840 is an N-Channel Power MOSFET that can switch loads up to 500V. The Mosfet could switch loads that consume up to 8A, it can turned on by providing a gate threshold voltage of 10V across the Gate and Source pin. IRF840 N-Channel Power Mosfet IRF840 Pinout Pin Configuration Pin Number Pin Name Description 1 Source Current flows out through Source (maximum 8A) 2 Gate Controls the biasing of the MOSFET (Threshold voltage 10V) 3 Drain Current flows in through Drain Features N-Channel Power MOSFET Continuous Drain Current (ID): 8A The gate threshold voltage (VGS-th) is 10V (limit = ±20V) Drain to Source Breakdown Voltage: 500V Drain Source Resistance (RDS) is 0.85 Ohms Rise time and fall time is 23nS and 20nS Available in To-220 package Note: Complete technical details can be found at the IRF840 datasheet linked at the bottom of the page About IRF840 The IRF840 is an N-Channel Power MOSFET that can switch loads up to 500V. The Mosfet could switch loads that consume up to 8A, it can turned on by providing a gate threshold voltage of 10V across the Gate and Source pin. Since the MOSFET is for switching high current high voltage loads it has a relatively high gate voltage, hence cannot be used directly with an I/O pin of a CPU. If you prefer a MOSFET with low gate voltage then try IRF540N or 2N7002 etc. One considerable disadvantage of the IRF840 Mosfet is its high on-resistance (RDS) value which is about 0.85 ohms. Hence this mosfet cannot be used in applications where high