How to use asemi FET 7n80 and how to use 7n80

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MOS The pipe is divided into N Channel and P Channel form . N Channel and P The channels are both enhanced and depleted . The main difference between the depletion type and the enhanced type is that the depletion type MOS Tube in G End （Gate） There is conductive channel when no voltage is applied , And enhanced MOS Tube only in G End （Gate） Only after power on can there be a conductive channel . The two control methods are also different , Depletion type MOS Tubular VGS（ Grid voltage ） You can use positive 、 zero 、 Negative voltage control to turn on , And enhanced MOS The tube must make VGS>VGS（th）（ gate threshold voltage ） Talent . that ASEMI Field effect tube 7N80 How to use it? ？7N80 What is the use of ？

ASEMI Field effect tube 7N80 How to use it? ？ In the use of MOS Tube time , We can choose different types according to different needs MOS tube . If we need to use it MOS Tube to withstand high power , Then the medium and low pressure MOS Tube is our best choice . If we want to use it MOS Tube replaces triode as switch tube , And it needs a very high corresponding speed , So high voltage MOS Tube is a wise choice . and 7N80 With fast switching speed , Able to withstand high pressure , therefore 7N80 The scope of application of is more extensive .

 

7N80 How to use , What should be paid attention to when using ？

FET is weaker than triode , Improper use may cause damage . therefore , Special attention shall be paid to the following items during use .

1、 The appropriate type of FET should be selected according to different applications .

2、 Field effect tube , Especially insulated gate FET , The input impedance is very high , When not in use, each electrode shall be short circuited , To prevent grid induced charge from damaging the tube .

3、 The gate source voltage of Junction FET cannot be reversed , But it can be stored in the open circuit state .

4、 To maintain the high input impedance of the FET , The pipes should be damp proof , The working environment should be dry .

5、 Charged objects （ Such as electric soldering iron 、 Test instruments ） When in contact with the FET , It has to be grounded , So as not to damage the pipe . Especially when welding insulated gate FET , Required by source - The grid is welded in sequence , It is better to do it after power failure . The power of the soldering iron is 15~30W, The welding time shall not exceed 10s.

6、 Insulated gate FET cannot be tested with a multimeter , Only use the tester to test , After the detector is connected, the short-circuit wiring of each electrode can be removed . When dismantling , The electrodes shall be short circuited before removal , Do not suspend the grating .

7、 When using a FET with substrate leads , The base plate leads shall be correctly connected .

That's all ASEMI Field effect tube 7N80 How to use it? ,7N80 The whole content of the method of using .ASEMI Products are widely used in ： Switching Mode Power Supply 、LED lighting 、 The integrated circuit 、 Mobile 、 Computer 、 Industrial automation control equipment 、 Automotive electronics and LCD TV 、IoT、 Smart home 、 Medical instruments 、 Induction cooker and other household appliances .