{614} How To Test DIAC DB3 || DIAC Function Explained

How To Test DIAC DB3 / DIAC Function Explained. a diac is a bidirectional semiconductor switch that can be turned on in both forward and reverse polarities above a certain voltage: it is often used to provide defined switching for a triac. The name DIAC comes from the words DIode AC switch. The DIAC is an electronics component that is widely used to assist even triggering of a TRIAC when used in AC switches and as a result they are often found in light dimmers such as those used in domestic lighting. These electronic components are also widely used in starter circuits for fluorescent lamps. A DIAC is a diode that conducts electrical current only after its breakover voltage (VBO) has been reached. DIAC stands for “Diode for Alternating Current”. A DIAC is a device which has two electrodes, and it is a member of the thyristor family. DIACs are used in the triggering of thyristors. The figure below shows a symbol of a DIAC, which resembles the connection of two diodes in series
شرح و كيفية قياس و اختبار الدياك how to test the diac Explained
Although the term is not often seen, DIACs may also be called symmetrical trigger diodes - a term resulting from the symmetry of their characteristic curve.
DIACs come in a variety of formats. As discrete components they may be contained in small leaded packages, they can be obtained in surface mount packages, in large packages that bolt to a chassis, or a variety of other packages. As they are often used as a DIAC TRIAC combination, they are often integrated into the same die as a TRIAC
#electronicscreators #DIAC #howtotestthyristor
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00:00 Introduction
00:32 DIAC explained
01:05 How To test DIAC DB3 using Multimeter
02:41 DIAC Application Sample Circuit
08:45 DIAC in AC circuit

[@electroniquepassion]

Bien 👍👋👋

[@HaseebElectronics]

best regards dear friend

[@robertfernandes675]

​@@HaseebElectronicsPP

[@tonniemail]

I get a headache when I watch other TH-cam explanations. Return to you and find exactly what I'm looking for! Thanks!😊

[@stevej5168]

I learned enough to understand how to test Diac and how it work. Good man.

[@HaseebElectronics]

it is my pleasure

[@DelmaHole]

Wonderful sharing my friend, Big thumbs up for this 👍🏻 I enjoyed watching. Stay safe & stay connected

[@HaseebElectronics]

Thanks and sure

[@surgingcircuits6955]

Info demo and English were all good. Thank you!

[@HaseebElectronics]

You are welcome!

[@secod2022]

NICE VIDEO

[@aboabdrahmanaziz8752]

جزاكم الله خيرا مشكور جدا

[@nitishkumarroy7757]

Very nice practical demonstration.

[@venkateshks6664]

Thank You!! Its brilliant and simple the way you explained. The Diac makes the adjusting circuit like that of a PWM for AC circuits like we use IC 555 as PWM for DC variable voltage regulator.

[@EJEuth]

Very well explained, thank you.

[@ScienceTechnologyExperiments]

Excellent! Informative video.

[@HaseebElectronics]

it is my pleasure

[@orlandogarcia2447]

Sir very good explanation

[@HaseebElectronics]

Thanks and welcome

[@gigimorphe6194]

Thank you Sir you have very good teaching talent.

[@rahulpatelgujratahmedabad3497]

GOOD TICHING KARTE HO 👍👍👌👍👌👍👌👍👌👍👌👍👌

[@HaseebElectronics]

best regards and special thanks

[@raju-ez7dl]

Excellent explanation, thank you so much

[@HaseebElectronics]

You are welcome!

[@nazarshah7242]

jaza kallah ,,,,,,,yeh dia jilaey rakhna.

[@HaseebElectronics]

thanks bhai
aap mera urdu channel (Haseeb Electronics Urdu) follow kr saktey hein, wahaan meri sabhi videos urdu language mein hoti hein

[@saniibrahim1002]

Great video, thank you so morch, Allah blessing you and your family?

[@HaseebElectronics]

Jazaak Allah khair

[@Maolana_ModiG]

Best video..

[@HaseebElectronics]

thanks a lot

[@FishingNOutdoorFun]

thanks for sharing from USA

[@HaseebElectronics]

best regards

[@tyronearendse1722]

Hi friend thanks for the informative video, so far this video is the best I've seen where the diac operation is explained

[@HaseebElectronics]

best regards
its practically circuit in AC circuit is to come very soon.
the purpose of this video was just to give idea about bidirectional behaviour of the DIAC on +/- power supplies
now this video will more helpful to follow its function in AC circuit

[@tyronearendse1722]

@@HaseebElectronics I'm looking forward to the video

[@hafsakhan580]

Very informative video

[@HaseebElectronics]

thanks a lot

[@gayanwijethilaka9135]

Thank you sir

[@HaseebElectronics]

Welcome

[@shahidniazbookcenter392]

Beautiful working

[@HaseebElectronics]

thanks a lot

[@W1RMD]

Thank you for this video! Very informative. I'd like to experiment with this and using the curve tracer circuit to be used with a basic oscilloscope I'm building from "Mr. Carlson's lab". I really enjoy your practical "real world" component and circuit teaching. Best regards sir!

[@HaseebElectronics]

Best wishes and Best of Luck

[@JunaidKhan-qp7uk]

جزاکم اللہ خیرا کثیرا

[@Versatiledani]

Good sharing

[@HaseebElectronics]

thanks a lot

[@Edmorbus]

thanks for sharing

[@HaseebElectronics]

most welcome

[@arunkumar-bh2dp]

clear explanation

[@HaseebElectronics]

most welcome
this was just introduction to understand the function of the DIAC. its AC circuit response is coming soon

[@justalabratmr.6858]

Excellent video!😃

[@HaseebElectronics]

it is my pleasure

[@dr.qaisarabbas6127]

nice job brother

[@HaseebElectronics]

thanks a lot

[@saarike]

Simply excellent!!! 👍👍👍👍🧡🧡

[@HaseebElectronics]

Thank you so much 😀

[@vloggertabagsel]

manatap kawan

[@HaseebElectronics]

best regards

[@garn6223]

Thank you very much sir 🙏🙏🙏

[@HaseebElectronics]

it is my pleasure

[@Fajardo3]

Thanks😊

[@HaseebElectronics]

most welcome

[@AYHAN006]

My teacher thsnks

[@susantaatha6468]

Very good informative. Please sir explain IPM testing with multimeter.

[@HaseebElectronics]

sure
i will try my best to arrange it as soon as possible

[@shundhem_electrick]

thanks

[@HaseebElectronics]

most welcome

[@muhammadishtiaq24]

Excellent thanks for sharing again Bahi

[@HaseebElectronics]

best regards

[@remediusfernandes1570]

Thanku sir

[@HaseebElectronics]

it is my pleasure

[@venkateshks6664]

Haseebji, one more thing is that depending on the Triac Voltage and current capacity we can change the Diac and the resistors (higher wattage) to control more powerful AC machinery. As increase in amplitude of the PWM is increase in power. I just want to know if this line of thinking is correct. If possible please reply.

[@mohammadkhalid6886]

Jazakallah khairah,,,,, 👍

[@HaseebElectronics]

it is my pleasure

[@seckinseckin3919]

i have insulation megger. if i adjust it to 250v AC then is it possible to measure diac ?

[@my3dviews]

I have a failed magnetic mixer, which has a variable resistor to change speed. I came across this diode, which seemed defective, since it wouldn't test as a normal diode. Now I am not sure if it is the problem. I had de-soldered it from the circuit to try to test it. May have to do a similar test to what you did.
Since it is bi-directional, it can obviously be soldered back into the circuit in either direction.
Is this a common failure, or am I looking at the wrong thing here.
There is a red LED which still comes on when the mixer is turned on, but the motor doesn't spin. If I can find a replacement quickly, I may just buy one and replace it anyway.

[@HaseebElectronics]

most of time it becomes short circuit, in rare cases it becomes open,
it is to be tested as i performed in this video
might be the circuit have triac or transistor, that must be verified

[@my3dviews]

@@HaseebElectronics Okay. I believe there is a transistor. Will have to look at the part number on it, to verify what type.
Thanks.

[@kaizen1071]

Hocam türkçe altyazılılı videolarınızın devamı gelsin. Çoğu videolarınızda türkçe altyazı yok .Bu sıkıntıyı hallederseniz sevinirim. Allah cc sizi dünya ve ahirette mutlu etsin.Esselamun aleykum.

[@stevendavid9430]

Hi sir i hv a faulty hot air station n i found a faulty triac n changed it for the heat gun but after changing it im still hving the same problem my heat gun is still glowing red n i csnnot adjust the temp for it. Could this be faulty?

[@bundadita7505]

Assalamualaikum wr wb semangat kak 🙏👍

[@HaseebElectronics]

best regards

[@mahenkansath6864]

I see your SMPS video that number no get. Service manual

[@vijayramakrishnan6838]

can i use diac as timmer plz

[@nayanjagirdar8408]

👌👌👌👍

[@HaseebElectronics]

best regards and special thanks

[@zeeshanrandhawa3571]

Aoa, sir can we use D13009K inplace of 13009L in smps.

[@HaseebElectronics]

yes it is the same
you can replace it
13009K is from chinese company JILIN SINO-MICROELECTRONICS
13009L is from Faichild semiconductor

[@zeeshanrandhawa3571]

Thanks v much sir.

[@sunuk1915]

DB13, DB3

[@HaseebElectronics]

it is DB3 and DB4
DB3 is DIAC 30V +/- 2Volt
DB4 is DIAC 40V +/- 5volt
while DB13 is SDIAC Bilateral Voltage triggered Switch Breakover Voltage:95-330Volts

[@dhanuskalankathilaka]

😊👍🙏

[@HaseebElectronics]

best regards 💕

[@AbdulMomenZargar60]

Net Speed Bahut Kam he bhai Saab

[@HaseebElectronics]

no problem Zargar bhai

[@muhammadrafiqulislamkhan6994]

I can not understand a single word that you are saying. Would you pls explain in hindy?

[@HaseebElectronics]

can you please visit my Urdu channel
Haseeb Electronics Urdu
that is for my Pakistani and indian brothers. my these videos are available there in Urdu language

[@HaseebElectronics]

th-cam.com/video/h-V5qcTCnl0/w-d-xo.html

[@tonyrebeiro]

You pronounciation of the word OHM is noticeable. You make it point to say OHOHM! Is it because you are staunch Muslim and you are uncomfortable to say Ohm, which has a Hindu touch???

[@DrKhakeeBaadshah]

nice job brother

[@HaseebElectronics]

thanks a lot