Vishay Siliconix IRF840S

IRF840S Overview
A device's maximum input capacitance is 1300pF @ 25V, but its input capacitance parameter, CI, is measured as the capacitance between the input terminals of the device with either input grounded.Its continuous drain current is 8A for this device. Drain current refers to the capacity of the device to conduct continuous current.Single MOSFETs transistor is the voltage at which VDS flows at a specified ID value, wSingle MOSFETs transistorh VGS=500V, and this device has a drain-to-source breakdown voltage of 500V voltage.A device's turn-off delay time is the amount of time it takes to charge its input capacitance before drain current conduction can begin, which is 49 ns.The Drain-to-Source Resistance (DTS) of a MOSFET is 850mOhm when a specific gate-to-source voltage (VGS) is applied to bias it into the on state.Before drain current conduction begins, the device's input capacitance must be charged, so the delay time is 14 ns.Generally, the gate-source voltage (VGS) of a FET transistor is the voltage across its gate-source terminal, which is 20V.To operate this transistor, you need to apply a 500V drain to source voltage (Vdss).This device uses no drive voltage (10V) to reduce its overall power consumption.

IRF840S Features
a continuous drain current (ID) of 8A
a drain-to-source breakdown voltage of 500V voltage
the turn-off delay time is 49 ns
single MOSFETs transistor is 850mOhm
a 500V drain to source voltage (Vdss)


IRF840S Applications
There are a lot of Vishay Siliconix
IRF840S applications of single MOSFETs transistors.


Power Tools
Motor Drives and Uninterruptible Power Supples
Synchronous Rectification
Battery Protection Circuit
Telecom 1 Sever Power Supplies
Industrial Power Supplies
PFC stages, hard switching PWM stages and resonant switching
PWM stages for e.g. PC Silverbox, Adapter, LCD & PDP TV,
Lighting, Server, Telecom and UPS.
DC-to-DC converters