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How to test MOSFET in circuit using multimeter, how to test MOSFET transistor with 8 and 3 terminals

Electronics Repair Basics_ERB
2022 ж. 7 Қыр.
79 597 Рет қаралды
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  • Buy Repair Tools👇👇👇 northridgefix.com/shop/?ref=ERB_23

    @electronicsrepairbasics_erb@electronicsrepairbasics_erb11 ай бұрын

  • Best explanation of the mosfits on KZhead! 👏 Great work

    @alialhawary213@alialhawary21311 ай бұрын

    • Thanks

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb11 ай бұрын

  • Thank you!! that is what i was looking in the internet, the practical electronic. you are the best!!

    @samuelmatos9124@samuelmatos9124 Жыл бұрын

    • Wow, thanks!

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb Жыл бұрын

  • I really appreciate the examples and the readings along with explanation of them.

    @mike-yp1uk@mike-yp1uk7 ай бұрын

    • Glad it was helpful!

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb7 ай бұрын

  • With some practice, I think I will finally get MOSFETs thanks to your video. Thx!

    @surgingcircuits6955@surgingcircuits6955 Жыл бұрын

  • Thanks your video, I managed to find out the mosfet FHP100N07 was the fault. Swapped out parts from donor board and my e-scooter is now working

    @eniltoh@eniltoh4 ай бұрын

  • great video is useful

    @jamesnagib9141@jamesnagib9141 Жыл бұрын

    • Thank you.

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb Жыл бұрын

  • The best Channel. Thank you for teaching...

    @helmuthrendl6560@helmuthrendl65607 ай бұрын

    • Glad you think so!

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb7 ай бұрын

  • Merci pour votre explication aussi bien explique bravo a vous merci pour la video

    @user-ho3di5er7x@user-ho3di5er7x Жыл бұрын

    • Thank you

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb Жыл бұрын

  • Thanks for good information

    @munirahmedmunirahmed2432@munirahmedmunirahmed2432 Жыл бұрын

    • So nice of you

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb Жыл бұрын

  • Well explained 🙌

    @Bantus@Bantus Жыл бұрын

    • Glad it was helpful!

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb Жыл бұрын

  • Most complete video for mosfets - thank you! But I was told that a way to remember what NPN means, is to think of the letters standing for: Never Pointing iNward but the arrows in your picture of the NPN mosfet shows the arrow pointing from the source to the gate - inward. I was also told to remember PNP as meaning: Pointing iNwards Perpetually. So, what is right and what is wrong? Please let me know, I want to learn. Thank you

    @maxwarfield6699@maxwarfield66999 ай бұрын

    • Thanks for the info!

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb9 ай бұрын

    • @@electronicsrepairbasics_erb Ok, but you haven’t answered my question.

      @maxwarfield6699@maxwarfield66999 ай бұрын

    • I think you are right. The image at 5:57 is rather N Channel mosfet which is PNP.

      @dzabakwesi2213@dzabakwesi22137 ай бұрын

  • Thank you.

    @vkdem@vkdem Жыл бұрын

    • You're welcome!

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb Жыл бұрын

  • This video is realy helpfull thank you 👍🏻

    @santhoshc4818@santhoshc48189 ай бұрын

    • So glad!

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb9 ай бұрын

  • Best explanation of the mosfits on KZhead! 😍😍

    @dilshanmaduranga9495@dilshanmaduranga94956 ай бұрын

    • Wow, thank you!

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb6 ай бұрын

  • u r the best thx

    @barcaking17@barcaking17 Жыл бұрын

    • You're very welcome! Thank you

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb Жыл бұрын

  • Great video as allways well explained 👍could you tell me how to read the markings on smd mosfet to buy replacement, as been repairing a motherboard and have n channel that I need to replace, but have no idea how to order or get a replacement many thanks in advance

    @Steadyeddie100@Steadyeddie1009 ай бұрын

  • thanks a lot sir

    @remancupido5323@remancupido5323 Жыл бұрын

    • So nice of you

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb Жыл бұрын

  • I'm see a similar voltage reading between source and drain regardless of positive/negative lead orientation. Is this an indication of a shorted diode?

    @haydenm315@haydenm3157 ай бұрын

  • if it beeps with a low reading does that mean your mosfet is short circuited and considered a bad mosfet? I checked all mosfets and every mosfet beeped when i check it with a multimeter with a low reading?

    @moonshine3657@moonshine36578 ай бұрын

  • Thanks you

    @kakysamir9681@kakysamir9681 Жыл бұрын

    • Thank you too!

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb Жыл бұрын

  • thx

    @mustafa75ful@mustafa75ful Жыл бұрын

  • Very good video. Thank you very much. 😊❤

    @chathu-mb1xg@chathu-mb1xg4 ай бұрын

  • this is great chanel i hope you focus on desktop motherboard

    @knowledgetreasure-1523@knowledgetreasure-15239 ай бұрын

  • You did a excellent job teaching and explaining but please edit the audio, some simple planning and audio peak monitoring. Audio can make or break the experience. Apologies for unsolicited feedback

    @jmenezdesigns2945@jmenezdesigns29452 ай бұрын

  • It would be also awesome if you showd how the shorted or bad mosfet reacts :)

    @crazydwarfer@crazydwarfer3 ай бұрын

  • hello, I followed your explanations carefully but I always have a double reading on the 3-leg smd mosfets, so it is impossible to determine which channel it is pnp or npn since when I change the probes it also shows me a reading on the same legs I'm a little lost I expected that there is only reading in one direction as you have shown, except that all the mosfets that I tested with 2 different multimeters do exactly that the same things double reading, on the same type of mosfets as in your videos and on functional and non-functional cards, I do not understand the 2 readings are satisfactory and displays good resistance on both sides impossible to know which channel is it, are there any exceptions? I do not understand anything anymore. thank you to enlighten me.

    @nabenf7727@nabenf7727 Жыл бұрын

    • Same here...........

      @digigarb@digigarb Жыл бұрын

  • Well explain video! Could you pls show us how to identify sound, keyboard e.t.c ic

    @mustaphayahaya4393@mustaphayahaya4393 Жыл бұрын

    • Hi, The reply is in my channel: Video title "Laptop motherboard components names & functions explained" Regards,

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb Жыл бұрын

  • i am testing a mosfet that is an TPCA8A10-H . I believe it is a Schottky barrier . between source and drain i am getting 22mA's .022. seems low to me. there are several, they all get the same. are they good? on the data sheet is this the forward voltage?

    @computerguy7213@computerguy72136 ай бұрын

  • Peace be upon you. Please, any information about this electronic piece. Is it two Schottky or Mosfet? For information, it is on the LED TV panel C2 OM thank you

    @said-nana70@said-nana70 Жыл бұрын

  • tx sir

    @GetachewAdise@GetachewAdise9 ай бұрын

    • All the best

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb9 ай бұрын

  • Found in power banks and cigarette chargers. They can be programmed by high end phones, by plugging it in while the phone is off. It turns on delta voltage charging.

    @jozsiolah1435@jozsiolah1435 Жыл бұрын

  • I like ore your video

    @user-qh5kb7rv7o@user-qh5kb7rv7o2 ай бұрын

  • Good job

    @ElectricalEngineering-sx7fd@ElectricalEngineering-sx7fdАй бұрын

    • Thanks

      @electronicsrepairbasics_erb@electronicsrepairbasics_erbАй бұрын

  • Sir how we can test Lm2592hv regulator with multimeter

    @arslan881@arslan881 Жыл бұрын

  • very good

    @LaxmanSingh-wh9vy@LaxmanSingh-wh9vyАй бұрын

    • Thank you! Cheers!

      @electronicsrepairbasics_erb@electronicsrepairbasics_erbАй бұрын

  • I have the same 4-pin Mosfet on my pcb. I checked source and drain. The number jumped to 800 and was still climbing above 900 and then it went to 0L. I think it's bad, isn't it?

    @PolyCube71@PolyCube7110 ай бұрын

  • Quick question: are mosfets marked always with a Q in a pcb or can the get anothet letter? As I've come across an U transistor in a circuit which should be a mosfet itself

    @lucabarattini3184@lucabarattini3184 Жыл бұрын

    • *can they

      @lucabarattini3184@lucabarattini3184 Жыл бұрын

    • In some motherboard can marked U

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb Жыл бұрын

  • Please I have a laptop and when I test all the MOSFET around the processor with a multimeter set on diode I discovered that it reads from the gate to source, gate to drain and source to drain with all high recistance

    @etiennewilson3813@etiennewilson38134 ай бұрын

  • I have a faulty Lenovo all in one 330 computer, it doesn't switch on . I got it dissasembled , I tried to check the components , and I noticed that when I pluged the power supply , a 8 pins mosfet near the power jack/socket was getting hot . I checked the mostfet , the drain , the source and the gate are good . Theres a ceramic smd capacitor 1cm away from the Mosfet , and when I check this capacitor in continuity mode theres' no reading , "I " is displayed , even when I reverse the probres , what could ne the problem ?

    @tunkunrunk@tunkunrunk Жыл бұрын

    • Check all components near to that hot mosfet you will find the failed components, usualy it can be a diode or a mosfet.

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb Жыл бұрын

    • Hi. am assuming that you are referring to the first mosfet after the charging port. First check if you have a 19. 5 voltage on the output of the first and second mosfet... If you dont have output voltage after the firstmosfets, try replacing that mosfet thats getting hot🔥. Let me know....

      @IS-77@IS-77 Жыл бұрын

  • Sir , your explanations confuse me . In my motherboard , 4 8-pins mosfets near the CPU give continuity between source and drain even if I reverse the probes , but I have no continuity between gate and source . There is another serie of mosfets on the same motherboard, near the power socket , they give reading between source and drain in both way , but no continuity . among them are two 8-pins mosfets where I get no continuity , no reading between the 4 pins of the drain

    @tunkunrunk@tunkunrunk11 ай бұрын

    • Remove the CPU and the short will disappear

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb11 ай бұрын

    • @@electronicsrepairbasics_erb you were right , the short disappear even on the back side of the PCB

      @tunkunrunk@tunkunrunk6 ай бұрын

  • I think in this video, a "good MOSFET" is a DEPLETION MODE MOSFET vs an ENHANCED MODE MOSFET. Correct?

    @surgingcircuits6955@surgingcircuits6955 Жыл бұрын

    • In looking further, I see that your ENHANCED MODE MOSFET has a diode between drain and source allowing flow from source to drain. Also, that PCB can confuse you as you watch because MOSFETs 1 & 4 have pin 1 top left, and 2 & 3 have pin 1 bottom right.

      @surgingcircuits6955@surgingcircuits6955 Жыл бұрын

  • I keep seeing a fake elon musk add on your page... Why am I seeing 4 ads in a 12 minute video.

    @ericcloudbolduc8840@ericcloudbolduc88405 ай бұрын

  • What you are saying...

    @rejiraju6042@rejiraju6042 Жыл бұрын

    • ??

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb Жыл бұрын

  • whistling is annoying

    @hydrogen2sulfide676@hydrogen2sulfide67610 ай бұрын

    • Like a hillbilly missing a tooth.

      @hi-ccowboy7983@hi-ccowboy7983Ай бұрын

    • Yes more disturbance.... irritating

      @javiedshahul7751@javiedshahul775124 күн бұрын

  • Bro just have the dentist fix your teeth

    @Millzieeeee@MillzieeeeeАй бұрын

    • Thank you Bro

      @electronicsrepairbasics_erb@electronicsrepairbasics_erbАй бұрын

  • I really hate finding a good video that explains no decent stuff about components And it has to be. Watered down with a dude with a deep voice who Has a whistle to everything that he says. Like the old perverted dude on Family Guy kind of Annoying

    @yanceygrayeyes6361@yanceygrayeyes63616 ай бұрын

  • I have looked everywhere do you know where I can find. 3 pin GO65N07. AOL05NSS1A Mosfit? Thanks.

    @theebikeguy3852@theebikeguy3852 Жыл бұрын

    • Hi, Do you check AMAZON Platform.

      @electronicsrepairbasics_erb@electronicsrepairbasics_erb Жыл бұрын

    • ​@@electronicsrepairbasics_erb I did find on the top number is G065N07 but the bottom number on the mosfit is not the same number, I'm not sure if the bottom number on a mosfit is a Batch number or a nu.ber that is to indicate to the company what voltage it is good for. Hope this makes sense thank you for responding

      @theebikeguy3852@theebikeguy3852 Жыл бұрын
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