What is a schottky diode?

[@Afrotechmods]

Interested in learning about wireless power? Subscribers can get up to 80% off my course Wireless Power to the People - Wireless Charging 101 on udemy using the coupon code "KZbin" www.udemy.com/wireless-power-to-the-people-wireless-charging-101/?couponCode=KZbin

[@cdrive5757]

After watching your video I couldn't help but muse over decades of "Academia" looking down their pompous snorkels at the mere mention of ANY information garnered from the internet. I'm long retired now but back in my early years I was owner / operator of a Land Mobile Radio / Marine Electronics shop. Back in those days we actually did component level diagnostics and replacement. Four evenings a week I was teaching an Industrial Electronics course for the Florida's adult ed program. A stick of chalk and a blackboard were the tools of the day. It's from that perspective that I can unequivocally state that your entire presentation is nothing short of superb! Absolutely every aspect of your presentation is STELLAR! Video, content structure and above all ... content depth & accuracy worthy of any institute of higher learning. Hey, I subscribed!!! Chris S.

[@Afrotechmods]

Thank you 😊

[@hankus253]

The concise, informative and TO THE POINT nature of your videos is something that a lot of other KZbin contributors could learn from. Two thumbs up. Okay at least one for sure.

[@AshtonCoolman]

Thumbs up for an excellent use of the Predator thermal vision sound effect.

[@caturdaynite7217]

Caught that, pretty cool.

[@douglasbillington8521]

Sweet

[@tkd4zgqg]

I noticed that too, Great, LOL

[@Npc5150]

He also referenced a scene in the movie when he said that the schottky was on steroids and the silicon diode was "pushing pencils." That was Arnold's line to Dillon when they were arm wrestling.

[@syrus3k]

Instant thumbs up.

[@bennievaneeden8625]

You are one of the best teachers ever.Even though it is not in my primary language I could always understand you videos and humor very clearly.I know that making these videos must take a lot of time especially at this quality.so Thank you!

[@w2aew]

Hey - I never realized that you included a reference to my switching time video in here! Thanks!

[@fullwaverecked]

You are a large part of a very small group of top notch electronics videos. :)

[@charanjitsingh7190]

Everyone says or writes about the fast switching without any examples. Seeing it first time in your video made sense instantly :)

[@JensAndree]

Probably the best video to date I've seen clearly describing the difference between a diode and a schottky diode - in just 6 minutes!

[@ksb2112]

Afrotechmods consistently boils down the essential points to make it vastly easier for a beginner to understand what is going on.

[@flamencoprof]

Hi, I trained as a telecommunications tech way back in the late 70's. I have lived decades thinking I knew all about this stuff, but haven't been actually building circuits or anything even like that. (I've been dealing with more & more optical fibre technology lately) I found this video re-educational and a useful reminder that pigeonholed old knowledge is vague and unreliable. Thanks!

[@prakashdev6008]

Great video with oscilloscope waveforms and detailed explanations covering the relevant minute points. Thank you for all the practical demonstrations. Good knowledge for an electronics engineer. Please cover popular ICs, diacs, triacs and other lesser used components

[@AppliedScience]

Excellent tutorial!

[@MichaelOlsen-Engineer]

Sweat! This was an excellent video covering the basics of Schottky diodes. This will be a big help with many of my beginning electronics students.

[@hamayunsiddiquesiddique7663]

Applied Science ì+i

[@SireSquish]

The predator references and sound effects are most definitely appreciated :).

[@BrunoPonce]

Def nice touch!

[@w2aew]

Thanks for the reference to my TRR video! Nice job as always!

[@Erik-yw9kj]

That poor diode at the end. You took its magic smoke away. They can't work without their magic smoke, and once it comes out, you can't get it back in.

[@Madvillian]

I like you

[@Teqnyq]

:-(

[@BillAnt]

This is such a great video, but the DiodeGoneWild guy would probably go wild if he saw that poor little diode burning at the end... ha-ha kzbin.info/door/Qak2_fXZ_9yXI5vB_Kd54g

[@jennaorlowski9228]

😢

[@LTJR.]

Diode die-oh!.......'lectro come an me diode done gone....😖

[@jasonh2081]

I enjoy the way you demonstrate in a no nonsense way these differences. I did not realize there were the differences between a normal diode and a shottky. Thank you again for your information.

[@johndickson76]

I studied electronics many moons ago but for some reason Schottky diodes were never covered in the course. Not a problem with this excellent tutorial 👍

[@meganlove4242]

This is an outstanding tutorial and without exception the best explanation of the schottky diode I have heard in both my personal and professional experience. Job well done.

[@airthrow]

I work in an electronics store and had to use this video to learn more about Schottkys, thank you!

[@ArcanePath360]

I wish all electronics videos were this well tutored

[@nitehawk86]

SED, Smoke Emitting Diode

[@laharl2k]

nitehawk86 well sign me for the new electronic smoke signal emitter. Now i just need to figure out how to demodulate it :(

[@jay7264]

He let out the magic smoke lol its like a genie do I get 3 wishes

[@6F6G]

nitehawk86 That was ordinary grey smoke. I once saw a high voltage capacitor die and give off pink smoke.

[@6F6G]

Laharl Krichevskoy Red Indians have used them for centuries. They would stand on mountaintops and look out for wagon trains or US cavalry and inform the rest of the tribe by typing the message into their communicator and pressing send. The communicator would then encode the message and transmit it by sending current pulses through the SED array.

[@vazhayilmathaivarghesemath7288]

ratcat17

[@austingeorge6659]

Wish I knew of these videos back in college. Great job explaining and showing!

[@MsMadLemon]

I have schottky diodes but had no idea what the difference was. Nice clear explanation, thanks!

[@jkuebler89]

What happened to you Afrotech? I used to love watching your videos, simple and to the point. Now thst I am tesching electronics they come in handy, we need you back sir!

[@ChrisDIYerOklahoma]

Nice. Been having some issues with the Schottky blocking diodes in my solar panels. I use a Fluke 117 multimeter in "diode checker" mode and found it to be really good at checking diodes pulled out of a solar panel. Thanks for making this video...it helped. Badass Predator music insert with that thermo imaging clip!

[@seannot-telling9806]

Thanks for taking time to give us this video. Only thing missing was the sparks. You had the smoke.

[@derosoft]

Very informative. I have been using diodes for years and only knew about the switching speed, never realized the other aspect of voltaqge drop (I still try to use Germanium diode when I find them for the smallest voltage drop)... Thanks again for a very clear description of pro's and con's.

[@andrewdettra2644]

Love the oscilloscope, really put everything together!

[@ZBott]

It took me longer than I want to admit the Predator heat vision sound effect. Great touch.

[@OnHoldAt50]

Informative refresher. Thanks Love how you fried the diode for a close. A man after my own heart.

[@kunasagaran5740]

Thank you. It is a refresher course me. After many years it takes me back to my younger years. Excellent and precise explanation.

[@josipzlk8019]

this is best tutororial on youtube i finaly know why is schottky diode deferent than regular diode

[@eraclecogito4293]

For a beginner your tutorials are gold, keep it up!

[@SilverBullet93GT]

Chotchkie's diodes have to have at least 15 pieces of flair to function properly

[@Jeremyveleber-makes-stuff]

I bought a bunch of stuff from Amazon on your behalf the other day. Keep up these great videos! Looking forward to the zener video.

[@Afrotechmods]

Jeremy Makes Stuff Thanks! :D

[@technocrawln4796]

Maan I've seen this at school it was so complicated but when I look this video its a lot more easy to understand

[@smiley235]

Technocrawl N4 Exactly, if more teachers were like him, the world would advance faster.

[@juans6639]

Excellent presentation. Our fellow technicians used to say that the magic smoke came out of the I.C.'s, Transistors or diodes. LOL.

[@daveTV]

We used to use schottky diodes on our RC car brushed motors back in the day. I never knew why and kinda still don't know what's the purpose. They came with the electronic speed controller and it was suppose to be applied across the motors positive and negative tabs. It was for racing purposes so the speed controllers didn't have reverse. They were forward and brake only.

[@Afrotechmods]

Watch my video on inductive spiking

[@Homeaudioacademy]

+1 for the predator SFX!

[@GoodOlKuro]

took me a second to get it lolz

[@237arun]

Awesome video man! The predator soundtrack for the thermal image killed it!

[@Mach7RadioIntercepts]

Whoah, this video takes me back to my early days in amateur radio, figuring out diode mixers for UHF / microwave freqs. At one time you could buy these at a local Radio Shack.

[@jlev505]

The predator music with the infrared camera is perfect!

[@nicknielsen5864]

Great tutorial, particularly the end. I always love to watch the magic smoke escape...

[@BrunoPonce]

Need a tune for this. Got it! Change 'Who Let The dogs out' to 'Who let the smoke out'. I'm sure someone else already alluded to this but I don't care. It's still funny to me. You know how enginerds are...

[@NoobixCube]

Very keen to see a video on the zener diode. I don't fully understand them, about all I know is it has something to do with a desired point at which a diode will allow reverse flow, or something, and even that is probably wrong.

[@jorgewashington2981]

Zeners are used to regulate voltages and operate in breakdown mode. Depending on the load a zener will vary the current through it while maintaining a constant voltage at the load when of course connected in parallel with the load.

[@chrisvolk4730]

It's so good to have you back Afro. I was beginning to wonder if the CIA had you pushing too many pencils.

[@anwarigroup]

It is goog view about schottky diod. I was also searching for varicap diode, but couldn't found in your videos.

[@MichaelOlsen-Engineer]

Sweat! This was an excellent video covering the basics of Schottky diodes. This will be a big help with many of my beginning electronics students.

[@jackriley5974]

1960, Keesler AFB, Biloxi, Mississippi,, transistor theory? The instructor points to a sketch of a triode transistor and says "It does this, we're not sure why, take our word for it! Time flies!!!

[@biswajeetsingh4994]

This video is being suggested to me by KZbin for many months or a year but I always skip this excellent video. Today I saw this video and wondering how amazingly great video I used to skip.

[@TheRocketSmith]

Glad to see you're still a fan of Arnold.

[@TheMoppersmurf]

You make things very easy to understand. Way better as expensive books in my own language! So thank you very much for all those vids. :)

[@johnduff-tytler3548]

Very clear talking .Very Good Teaching .

[@sanseiryu]

I used to replace blown diodes on microwave ovens that looked like these but were quite a bit larger. I would find them on the capacitors for the hi-voltage section of the microwave oven. Easy and quick fix.

[@MarkTillotson]

Nice clear video, especially the important detail of the high leakage currents that Schottky diodes can have at temperature. Just have to quibble with your use of capitalized SI units: The units are volts, amperes (amps), watts. The people are called Volta, Ampere and Watt, you only capitalize the names of people, not units (the exception is degress Celcius, because that is the name of a person, but kelvin is the unit of thermodynamic temperature, Kelvin refers to lord Kelvin.) This distinction is often handy, for instance clarifying that Ampere's law isn't just about amperes... Furthermore if you think about it we'd never capitalize Inch, Metre, Foot, Gallon, Pound... Now I'm worrying if you can say "schottky diode" or always have to say "Schottky diode"... :)

[@Afrotechmods]

***** Hah you are right. Good catch

[@OSrBurns]

***** I keep missing the conversion for Fahrenheit, it's a really bad temperature system.

[@argo1argo1]

***** It's Celsius.

[@MarkTillotson]

Charles Sammut Yes, that's a good point!

[@vazhayilmathaivarghesemath7288]

.. plane is shaking though WELL not achan kunj peedikayil

[@belgrademachine]

You are a great teacher! Thank you

[@thetruthexperiment]

How I wish they taught his in high school. It’s such a practical application of science and math. It’s so fascinating.

[@cipol3]

On half way of video, i was like, well why do silicone diode even exist? and then you explains it. Great video, helps me a lot thanks. subbed.

[@telocho]

Saiful Raznan There exist old fashioned germanium diodes as well. Advantage: they have a lower Vf plus a more straight rectifying curve, making them ideal in radio detection circuits. On the other hand, they cannot handle load very well, so these are rubbish in power supply applications.

[@HobbyOrganist]

I ran into an interesting issue with my pipe organ, it has several hundred 12vdc valves typically used in groups of 61 or 73 for one rank of pipes. I used a standard diode on the valves to stop the coil voltage collapse from sending DC current back to the contacts which tends to damage them over time. I turn each rank on- with a 12vdc auto headlight relay which connects the bare copper wire negative bus to the neg terminal on the rectifier to complete the circuit for the valves. The problem was two things- all of the electro magnets in the 40, 60 and 90 OHM valves were acting as a sort of pseudo ground and completing the circuit without the 12vdc contact being on. In addition, I had "pairs" of 2 ranks wired to a "66 block" telco punch block to save having to run 73 wires to the relays for every single rank. That was when I wound up having to add another diode on every single valve's positive input wire so the groups of valves could not self ground, and to keep each rank separated despite having common positives for pairs of 2 ranks on the 66 blocks. I also added diodes on the 12vdc auto headlight relays too, to make sure they only work in one direction. That did the trick :)

[@orimusic9707]

Highly appreciate the amount of time you spent to explain this! Far better than my useless professor!

[@hathawayelectronics3264]

Schottky diodes are also the preferred diode to use in solar applications due to their efficiency. Good video.

[@djpcradock]

Love the Predator heat vision effect :D

[@iblesbosuok]

I use schottky diodes as ring modulator. they work perfectly. cheers from Indonesia

[@chrisbehr4285]

Nice move with the Predator sound under the heat vision sequences.

[@Teenagegoogoomuk]

You can actually type in the name of the sinewave on your scope? Nice.I noticed you put the component name on each wave form.Man I'm getting old, but my 1980's Hitachi O-scope is still holding up.

[@mraulmadrid7]

first time watching any of your videos, subbed because you obviously deserve more subs

[@jtveg]

Brilliant. These videos are perfect for beginners in electronics.

[@hankosaurus]

Well done. Excellent speech, audio, and presentation. Thank you.

[@PeterScargill]

Very good - I know about Schottky diodes and used them several times - but not at this level of detail - enlightening.

[@6F6G]

The smoke emitting diode as used in ancient Red Indian electronic communications.

[@ibiffen]

The last few seconds of the video shows a fine example of the SED (Smoke Emitting Diode)

[@mickd6942]

Like the preditor touch for the thermal camera

[@avidyp4788]

Great point. Once you let the smoke out, the thing is done forever.

[@TheJamesHouckShow]

Thanks sooo much. I was aways wandering what they are. All the other videos I saw on the concept were confusing, thanks so much again! You are like the Khan Academy of electronics, but much better!!!😀

[@wb5rue]

Excellent yet simple description. CHEERS!

[@joro8604]

Excellent description, even an ME can absorb it!

[@tjones99]

Awesome... Right about @3:59 I am thinking "so why aren't I using shottkyfor everything..." and you nailed it right on queue!

[@JohnJaggerJack]

i loved the predator thermal vision sound effect, oh and you video was also very educating, academic grade.

[@marcus_w0]

Very nice Video. It's all about quality, not quantity.

[@JoshuaRando]

Marcus Wiedner I agree very much. :)

[@SONOFAZOMBIE2025]

Marcus Wiedner It was about diodes.

[@gregedenfield1080]

love the melt down at the end, thanx.

[@walrus4248]

Great video, I'm trying to learn power supply details.

[@MrRickyw01]

Keep the good information flowing.

[@zilog357]

In the provided information, I would emphasize that the peak inverse voltage (PIV) is always lower than 100 volts due to the Schottky diode thinner silicon layer and that is why high-voltage hi-speed switching normal PN diodes are used instead for switching power supplies working with line voltages. You know, 0.6V Vf is not much anyway at those voltages. On the other hand, Schottky diodes are great for low voltage applications like DC-DC voltage (buck) converters and things like rectifying or "protecting" solar panels from reverse current flows. In those cases, the very low Vf of Schottky diodes is ideal, as 0.6v Vf from normal diodes is actually the output of one single solar cell. It would be like if the cell wouldn't even be there. I have seen power Schottky diodes (600A) with a Vf of about 0.08v which are great for that purpose.

[@IsaacMorton]

You should do a video on the basics of radio.

[@Afrotechmods]

Isaac Morton I have a video on AM (amplitude modulation)

[@IsaacMorton]

Afrotechmods do you think you would be able to do a video on simple radio receiver circuits?

[@6F6G]

Excellant tutorial. You killed that diode at 5:49. If you had caught the smoke and put it back in you might have been able to save it. lol

[@silasfatchett5693]

The smoke undergoes a molecular transformation as it escapes, so if you put it back in the diode still wouldn't work.

[@bledlbledlbledl]

Worked on a piece of equipment awhile back that used a double-barrel schottky. just kidding. sort of. the switching power supply used two schottky diodes in parallel on the 24VDC input, in the protect-against-backwards-voltage circuit.. :P

[@hv1461]

Nice video. What about the physics underlying the characteristics you describe here.

[@kenmore01]

It's also hard to find them with over 100V blocking voltage. 60-80V is much more common.

[@kieferonline]

I never considered The Predator would be so well suited to troubleshooting electronics.

[@ashishtayade047]

Thank you sir very nice gide & very nice best explain schottky diode effects teaching video.👍

[@Onyx88]

Love the Predator movie special effects sound for infrared!

[@RingingResonance]

0:26 electrons flow in the opposite direction, from negative to positive or from Cathode to Anode.

[@GoldSrc_]

+MadeOfSolder Look up "conventional current flow".

[@RingingResonance]

Conventional current flow if how it was originally thought to work, it was proven wrong by the cathode ray tube early on in electronics. For all intents and purposes, when designing a new circuit you must account for the fact that current flows from cathode to anode.

[@GoldSrc_]

MadeOfSolder Yes, it was proven to be wrong, but by the time they figured it out a lot of books had been made using conventional current flow, and well, it got stuck with us.

[@proyectosledar]

great video!! thanks. saludos

[@vermillionreaper]

wow, no me esperaba verte por aca

[@epiendless1128]

Hey, I use these all the time, but I still learned something. Never spotted that lower peak voltage = lower forward voltage drop before! The unmentioned reason for using silicon diodes is that Schottky diodes tend to have reverse voltage rating measured in 10s of volts, while silicon diodes tend to be rated in 100s of volts. That high leakage current is also a problem if you're relying on the diode to stop a coin cell backup battery discharging. Speed-wise, I learned long ago by experience never to use a silcon rectified diode in a switching supply, _even if it's only a breadboard._ They just don't work.

[@dcoffset4615]

Liked and subscribed. Great to see a clear, to the point video on electronics

[@dalenassar9152]

Thanks, Learned a LOT!!!! But, please, what does P.I.N. stand for??

[@bd6272]

very good, simple and explanatory - good job !

[@Bank-E]

I like the predator sound effect your using when you switch to heat vision lol

[@solarsynapse]

Good explanation. Would a Shottky be better suited as a flywheel/flyback diode for a DC brushed electric motor?

[@greggharrington2322]

Very helpful. Thank you. I guess I follow up question/video request would be; what other kinds of Diodes are there and what are their uses?

[@fernandojunior3739]

Hello and good day to you sir... I'm interested on understanding to build a power supply using a transformer 12v-0-12v@2A/25VA.. I don't have any eletronic lessons backgrounds. But most of your video's helped me a lot on repairing power supply and eletronic ballast. I work at as a technician at a pet shop and most of my problem is with power supplys. If possible would you help me to understand more.. thank you.