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

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  • เผยแพร่เมื่อ 7 ก.ย. 2022
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ความคิดเห็น • 90

  • @electronicsrepairbasics_erb
    @electronicsrepairbasics_erb  ปีที่แล้ว

    Buy Repair Tools👇👇👇
    northridgefix.com/shop/?ref=ERB_23

  • @kabandajamir9844
    @kabandajamir9844 18 วันที่ผ่านมา +1

    The world's best teacher thanks sir

  • @izazulfaiz
    @izazulfaiz 11 วันที่ผ่านมา

    his teaching is very clear, i learn many things from him..but sometime i could not catch up nad understand some things as i do not understand..

  • @alialhawary213
    @alialhawary213 ปีที่แล้ว +4

    Best explanation of the mosfits on TH-cam! 👏
    Great work

  • @chol5808
    @chol5808 19 วันที่ผ่านมา +1

    Love the voise manipulation lol spooky tech.

  • @samuelmatos9124
    @samuelmatos9124 ปีที่แล้ว +1

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

  • @mike-yp1uk
    @mike-yp1uk 9 หลายเดือนก่อน

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

  • @helmuthrendl6560
    @helmuthrendl6560 8 หลายเดือนก่อน

    The best Channel. Thank you for teaching...

  • @eniltoh
    @eniltoh 5 หลายเดือนก่อน

    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

  • @jamesnagib9141
    @jamesnagib9141 ปีที่แล้ว

    great video is useful

  • @munirahmedmunirahmed2432
    @munirahmedmunirahmed2432 ปีที่แล้ว

    Thanks for good information

  • @santhoshc4818
    @santhoshc4818 10 หลายเดือนก่อน

    This video is realy helpfull thank you 👍🏻

  • @user-ho3di5er7x
    @user-ho3di5er7x ปีที่แล้ว +2

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

  • @dilshanmaduranga9495
    @dilshanmaduranga9495 7 หลายเดือนก่อน

    Best explanation of the mosfits on TH-cam! 😍😍

  • @vkdem
    @vkdem ปีที่แล้ว

    Thank you.

  • @surgingcircuits6955
    @surgingcircuits6955 ปีที่แล้ว +2

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

  • @chathu-mb1xg
    @chathu-mb1xg 5 หลายเดือนก่อน

    Very good video. Thank you very much. 😊❤

  • @Bantus
    @Bantus ปีที่แล้ว

    Well explained 🙌

  • @barcaking17
    @barcaking17 ปีที่แล้ว

    u r the best thx

  • @remancupido5323
    @remancupido5323 ปีที่แล้ว

    thanks a lot sir

  • @kakysamir9681
    @kakysamir9681 ปีที่แล้ว

    Thanks you

  • @user-qh5kb7rv7o
    @user-qh5kb7rv7o 3 หลายเดือนก่อน

    I like ore your video

  • @NerdThingsAndMore
    @NerdThingsAndMore 23 วันที่ผ่านมา +1

    Thanks

  • @mustafa75ful
    @mustafa75ful ปีที่แล้ว

    thx

  • @Steadyeddie100
    @Steadyeddie100 10 หลายเดือนก่อน

    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

  • @haydenm315
    @haydenm315 8 หลายเดือนก่อน +1

    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?

  • @crazydwarfer
    @crazydwarfer 4 หลายเดือนก่อน

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

  • @knowledgetreasure-1523
    @knowledgetreasure-1523 10 หลายเดือนก่อน

    this is great chanel i hope you focus on desktop motherboard

  • @GetachewAdise
    @GetachewAdise 11 หลายเดือนก่อน

    tx sir

  • @computerguy7213
    @computerguy7213 7 หลายเดือนก่อน

    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?

  • @mustaphayahaya4393
    @mustaphayahaya4393 ปีที่แล้ว

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

    • @electronicsrepairbasics_erb
      @electronicsrepairbasics_erb  ปีที่แล้ว

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

  • @nabenf7727
    @nabenf7727 ปีที่แล้ว +7

    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.

    • @digigarb
      @digigarb ปีที่แล้ว +2

      Same here...........

  • @ElectricalEngineering-sx7fd
    @ElectricalEngineering-sx7fd 3 หลายเดือนก่อน

    Good job

  • @said-nana70
    @said-nana70 ปีที่แล้ว

    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

  • @LaxmanSingh-wh9vy
    @LaxmanSingh-wh9vy 2 หลายเดือนก่อน

    very good

  • @jmenezdesigns2945
    @jmenezdesigns2945 4 หลายเดือนก่อน

    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

  • @moonshine3657
    @moonshine3657 9 หลายเดือนก่อน +1

    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?

  • @maxwarfield6699
    @maxwarfield6699 10 หลายเดือนก่อน +3

    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

    • @electronicsrepairbasics_erb
      @electronicsrepairbasics_erb  10 หลายเดือนก่อน +1

      Thanks for the info!

    • @maxwarfield6699
      @maxwarfield6699 10 หลายเดือนก่อน +1

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

    • @dzabakwesi2213
      @dzabakwesi2213 8 หลายเดือนก่อน +1

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

  • @etiennewilson3813
    @etiennewilson3813 5 หลายเดือนก่อน

    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

  • @PolyCube71
    @PolyCube71 11 หลายเดือนก่อน

    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?

  • @jozsiolah1435
    @jozsiolah1435 ปีที่แล้ว

    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.

  • @lucabarattini3184
    @lucabarattini3184 ปีที่แล้ว

    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

  • @arslan881
    @arslan881 ปีที่แล้ว

    Sir how we can test Lm2592hv regulator with multimeter

  • @tunkunrunk
    @tunkunrunk ปีที่แล้ว

    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 ?

    • @electronicsrepairbasics_erb
      @electronicsrepairbasics_erb  ปีที่แล้ว +2

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

    • @IS-77
      @IS-77 ปีที่แล้ว +2

      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....

  • @tunkunrunk
    @tunkunrunk ปีที่แล้ว +1

    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

    • @electronicsrepairbasics_erb
      @electronicsrepairbasics_erb  ปีที่แล้ว +2

      Remove the CPU and the short will disappear

    • @tunkunrunk
      @tunkunrunk 7 หลายเดือนก่อน

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

  • @surgingcircuits6955
    @surgingcircuits6955 ปีที่แล้ว +1

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

    • @surgingcircuits6955
      @surgingcircuits6955 ปีที่แล้ว +1

      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.

  • @rejiraju6042
    @rejiraju6042 ปีที่แล้ว

    What you are saying...

  • @ericcloudbolduc8840
    @ericcloudbolduc8840 6 หลายเดือนก่อน

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

  • @hydrogen2sulfide676
    @hydrogen2sulfide676 ปีที่แล้ว +2

    whistling is annoying

    • @hi-ccowboy7983
      @hi-ccowboy7983 2 หลายเดือนก่อน +1

      Like a hillbilly missing a tooth.

    • @javiedshahul7751
      @javiedshahul7751 2 หลายเดือนก่อน +1

      Yes more disturbance.... irritating

  • @Millzieeeee
    @Millzieeeee 3 หลายเดือนก่อน

    Bro just have the dentist fix your teeth

  • @yanceygrayeyes6361
    @yanceygrayeyes6361 7 หลายเดือนก่อน

    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

  • @theebikeguy3852
    @theebikeguy3852 ปีที่แล้ว

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

    • @electronicsrepairbasics_erb
      @electronicsrepairbasics_erb  ปีที่แล้ว +1

      Hi,
      Do you check AMAZON Platform.

    • @theebikeguy3852
      @theebikeguy3852 ปีที่แล้ว

      ​@@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

  • @izazulfaiz
    @izazulfaiz 11 วันที่ผ่านมา

    his teaching is very clear, i learn many things from him..but sometime i could not catch up nad understand some things as i do not understand..