Save -39% IRF840 N-Channel Power Mosfet Transistor 8A 500V 0.85Ω TO-220

IRF840 N-Channel Power Mosfet Transistor 8A 500V 0.85Ω TO-220

Original price was: 33.00 EGP.Current price is: 20.00 EGP.

IRF840 N-Channel Power Mosfet Transistor 8A 500V 0.85Ω TO-220

SKU T_IRF840 N-Ch MOSFET SKU SYS X6814 Availability In stock
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IRF840 MOSFET MOSFET Transistors N-Channel Power MOSFET Transistor Transistor Transistors

Description

IRF840 N-Channel Power Mosfet Transistor 8A 500V 0.85Ω TO-220

The IRF840 is an N-Channel Power MOSFET which can switch loads upto 500V. The Mosfet could switch loads that consume upto 8A, it can turned on by providing a gate threshold voltage of 10V across the Gate and Source pin.

 

Pin Configuration

 

Pin NumberPin NameDescription
1SourceCurrent flows out through Source (maximum 8A)
2GateControls the biasing of the MOSFET (Threshold voltage 10V)
3DrainCurrent flows in through Drain

 

Features

·         N-Channel Power MOSFET

·         Continuous Drain Current (ID): 8A

·         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

 

Alternatives for IRF840

8N50, FTK480, KF12N50

 

Other N-channel MOSFETS

IRF740, BSS138, IRF520, 2N7002, BS170, BSS123, IRF3205, IRF1010E

 

 

About IRF840

The IRF840 is an N-Channel Power MOSFET which can switch loads upto 500V. The Mosfet could switch loads that consume upto 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 a 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 switching efficiency is required. 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. 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.

 

Applications

  • Switching high power devices
  • Inverter Circuits
  • DC-DC Converters
  • Control speed of motors
  • LED dimmers or flashers
  • High Speed switching applications

 

2D model of the component

If you are designing a PCB or Perf board with this component then the following picture from the IRF840 Datasheet will be useful to know its package type and dimensions.

 

 

IRF840 N Channel Power Mosfet 2 D Model

Component DatasheetIRF840 Datasheet 

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