A4T TRANSISTOR PDF

Daigor It may not be as simple as a year, it may mean month 5, for example. Home Questions Tags Users Unanswered. Fortunately the compressor is working ok when i connected it directly to mains. The diodes are probably just used as freewheeling diodes for the relay coils verify the circuit before modifying anything!

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Aim to be the best reliance semiconductor supplier of china. But constantly replacing diodes while investigating another problem can get tiring. Relevancy Transaction Level Response Rate. I was thinking it may be diode logic to power a relay under two different conditions, but it could indeed be just flyback diodes. Wisam Naji 3 2. Email Required, but never shown.

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I suggesting putting the two smaller, faster diodes in series so they have a higher turn on voltage than the slower 1N or 1N parallel to them a4h so they will only take the back EMF until the 1N40xx turns on! I have a no frost freezer which stopped freezing efficiently and after some research and trials I found the problem to be related to control board.

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We have best quality controlBest Service and competitive Price. Most of our products are new and original, any interests please contact me. Transisror price advantage helps to save your purchase cost and your precious time. Sign up or log in Sign up using Google.

We are not responsible for any accidents, delays or other issues that are the responsibility of the shipping service. All parts quoted are new and unused and are in original factory packaging unless specified. Home Questions Tags Users Unanswered. There are a4 transistor suppliers, mainly located in Asia. The relay use 24 vdc and if the voltage across the coil keeps fluctuating around 24 then maybe this what you mean by actuating the coil more frequently and could have burnt the diode.

I would appreciate if you can give me a schematic for the replacement you suggested?. Related Posts

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