A4T Datasheet, A4T PDF, A4T Data sheet, A4T manual, A4T pdf, A4T, datenblatt, Electronics A4T, alldatasheet, free, datasheet, Datasheets, data sheet, datas. Googling “SOT transistor A4t” yields which suggests it might be a BAV70 dual diode, and. products offers a4 transistor products. About 63% of these are integrated circuits, 10% are transistors. A wide variety of a4 transistor options.

Author: Bragis Gardashicage
Country: South Sudan
Language: English (Spanish)
Genre: Environment
Published (Last): 1 January 2018
Pages: 32
PDF File Size: 17.49 Mb
ePub File Size: 7.34 Mb
ISBN: 522-8-34434-828-6
Downloads: 82932
Price: Free* [*Free Regsitration Required]
Uploader: Tauzragore

Supplier Types Trade Assurance. By using our site, you acknowledge transisror you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. But constantly replacing diodes while investigating another problem can get tiring. Do you test all your goods before delivery9 A: Transaction area Through check Transaction Area.

a4 transistor

Not knowing the rest of the circuit, a safe replacement would likely be a series of two 1N or BAV70 indeed paralleled by a beefier device like an 1N – this would be as good at suppressing the back EMF quickly while unloading most of the current spike into the 1N The supplier supports Trade Assurance — A free service that protects your orders from payment to delivery. Using a multimeter I figured it’s a pnp type Negative probe to base gave me a reading in diode mode however the check was done on this other one that looks exactly the same and so I confirmed the type.

Wisam Naji 3 2.

Marking reads A4t 95, as you can see, but a search on google was futile and I couldn’t reach anything so figured asking here may return something.

BOM price list offer 0. Tarnsistor Questions Tags Users Unanswered. 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 get it that i should connect the cathods of the two 1n as one terminal. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.


Fortunately the compressor is working ok when i connected it directly to mains.

free shipping*(50)BAV70 A4 A4T SMD Transistor SOT-23

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 – so they will only take the back EMF until the 1N40xx turns on! But what about the 95 marking? Sign up using Facebook. But how should i connect the 1n which I have? Transisfor of our products hransistor new and original, any interests please contact me.

All parts quoted are new and unused and are in original factory packaging unless specified. Well the problem obviously is from our power source here in Iraq we use generators along with power grid and the generators most of the time are unstable and under voltage.

Sample Order Free samples Paid samples. Now if my logic is correct, I want to know how can I figure it’s precise model so I can change it?

I was thinking it may be diode logic to power a relay under two different conditions, but it could indeed trasistor just transitsor diodes. The burnt one did not give me overload when I touched either probes to base however it gave me a much lower reading for probably B-C, I couldn’t confirm C-E pins than it read for B-E.

We have best quality controlBest Service and competitive Price. I reached this but was not sure if it is the same. It looks like the flyback diode thats used to suppress inductive kickback when the coil is switched.

Competitive price advantage helps to save your purchase cost and your precious time. We are not responsible for any accidents, delays or other issues that are tfansistor responsibility of the shipping service. You can also choose from free samples, paid samples.


NO, that wasn’t my intent! I have a no frost freezer which stopped freezing efficiently and after some research and trials I found a44t problem to be related to control board. I would appreciate if you can give me a schematic for the replacement you suggested?. Post as a guest Name.

China Manufacture A4 Transistor. And the two anods will be the other pins. Sign up using Email and Password. A4 Transistor SOT23 0. Email Required, but never shown.

A wide variety of a4 transistor options are available to you, such as field-effect transistor, logic ics, and triode transistor. Now i have to test the relay which i think will work ok.

What is the type of this surface mount transistor? – Electrical Engineering Stack Exchange

The diodes are probably just used as freewheeling diodes for the relay coils verify the circuit before modifying anything! We will ship the items within working days after the payment is reached.

About product and suppliers: You can ensure product safety by selecting from certified suppliers, including 11 with Other, 4 with ISO, and 3 with ISO certification. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

What is your terms of delivery9 A: Aim to be the best reliance semiconductor supplier of china. What’s your advantage9 A: There are a4 transistor suppliers, mainly located in Asia. Thanks in advance and sorry for my english. And as of now I am pretty sure the problem is with this obviously burnt transistor that controls the compressor’s relay.

What is the type of this surface mount transistor?

New Transistor Z A4.