Hi all,

I was wondering if anyone could help me identify this part or where can I buy from? I couldn't figuring out who was making this chip cause i been asking around and no one seem to be able to recognized it and I urgent need replacement part for this.

Thanks all,
Paul

 

More than likely work for you?
http://www.alliedelec.com/search/productdetail.aspx?SKU=70184621
What is the application?
Max.

 

A Google search shows a tan speed control with the same number as shown on your device. What kind of unit is it in?

 

Its made by Motorola, looks like a Thyristor or a Triac, what is it doing speed control or dimming?

 

Since it says SCR210 right on it, I'd assume it's an SCR, also know as thyristor. It appears to be operated in forward voltage breakdown mode, where the gate is intentionally left open.

Was that a battery charger?

 

It appears to be operated in forward voltage breakdown mode, where the gate is intentionally left open.

It could be the Anode lead is cut but is common to the tab, and the tab makes the circuit connection when screwed to the Heat sink?
Max.

 

If you told us what unit it is out of that would help.

 

It could be the Anode lead is cut but is common to the tab, and the tab makes the circuit connection when screwed to the Heat sink?
Max.

Correct, it's a 2-leg SCR, the Anode must be connected at the heatsink tag, and heatsink is probably live. I haven't seen one of those SCRs in a long time.

 

It was a circuit board in my walkie forklift. Before it broke we were able to charge direct from wall 110v to 12v DC battery via converter. But now the DC Amp gauge no longer indicate charging and what we found was one of SCR210's leg was broken.

 

Did you try soldering the leg back together?

 

It was a circuit board in my walkie forklift. Before it broke we were able to charge direct from wall 110v to 12v DC battery via converter. But now the DC Amp gauge no longer indicate charging and what we found was one of SCR210's leg was broken.

The fact it is a charger (DC), it most likely IS a SCR, there is no sign of a circuit board connection for the centre lead, so it could be the tab that makes connection?
If so and the part is defective (or broken), the part in post 2 could well do the trick, if re-soldering does not work?
Max.

 

The leg that was broken (middle ) will possibly be connected to the metal tab,

 

Hi all,

If it was broke on the leg, I shouldn't have problem re-soldering but it was broken right at the bottom of the chip.

 

Board looks pretty badly corroded?
It probably eroded away?
Let me guess. Battery electrolyte fumes?
Max.

 

In this application, the board should have been treated with conformal coating?
Max.

 

And the dog not allowed to pee on it!

 

In this application, the board should have been treated with conformal coating?
Max.

I doubt it since there is oxidation around the IC.

 

The leg that was broken (middle ) will possibly be connected to the metal tab,

No they are made without a middle leg. The tag is used as the thrid connection.

Re the corrosion; Yech! How big is this "12v battery" that this device will charge? You might be able to get rid of that old PCB and SCRs and put in a more modern solution.

Even if that PCB still works it will not be for very long.

 

It used 2 deep cycle marine batteries

 

Board looks pretty badly corroded?
It probably eroded away?
Let me guess. Battery electrolyte fumes?
Max.

Actual board wasn't as bad as it look. We The battery wasn't fumes either.