Vileda VR102 identify a component
Hello, I need help identifying this component. Bottom right leg is shorted to the left side.
Looks like it says 301LA.
Thank you.
Looks like it says 301LA.
Thank you.
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Re: Vileda VR102 identify a component
It could be due to the low value of the resistor across the pins, is it marked as D5 on the board?Last edited by R_J; 12-08-2022, 09:56 PM. -
Re: Vileda VR102 identify a component
It looks more like smd marking S01LA but I cannot find it.Comment
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Re: Vileda VR102 identify a component
You'd have to trace out how the motor is switched on - is it this mosfet or a N-ch somewhere else. If it shorted I would think the motor will stay on.
Otherwise this is a motor back EMF diode. It's not a (reversible) motor needing a 4-mosfet H-bridge?
"S01" I found as SOT-23 P-ch. MOSFET by Samhop Microelectronics Taiwan.
STS2301A -20V/-2.6A 95mΩ
STS2301 -20V/-3.4A 60mΩ
There's no marking code data on the website or datasheets to confirm. One part uses a 3 digit marking with tiny manufacturing code rotated.
Many other generic makers of the 2301, as a NXP2301P, AO2301 etc. out of the third-world.Comment
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Re: Vileda VR102 identify a component
I found an S01 as a FJX3001R pre biased NPN, SOT 323. I can’t tell if it is an S or a 3.Last edited by CapLeaker; 12-09-2022, 09:53 AM.Comment
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Re: Vileda VR102 identify a component
Is the other device marked as D? if it is how does it check, does it check like a dual diode, or like a transistor?
Where is it in the circuit?
is it across the motor?
Post a clear picture of the whole area of the boardLast edited by R_J; 12-10-2022, 06:54 PM.Comment
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Re: Vileda VR102 identify a component
I think D5 is the large part under the Q18 silkscreen and might not apply. You can a current-sense resistor R155 as well.
Usually you'd see a N-ch. mosfet turning a motor on and off. If it's reversible, then a P-ch up top on the H-bridge.
The only part that doesn't fit is OP finds the part shorted yet the motor will not run. If true then there is another problem, or it's the gate shorted.Comment
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Re: Vileda VR102 identify a component
Similar to ST2301A.Attached FilesComment
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Re: Vileda VR102 identify a component
Thank you lotas, that sure looks like it.
So I guess the D5 designator IS for another component.Last edited by R_J; 12-11-2022, 01:16 PM.Comment
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Re: Vileda VR102 identify a component
My apologies on not replying, Yes the gate was shorted.
I'm guessing this is the one. https://www.aliexpress.com/item/4000312333823.html
Thank you so much for all the help. Hope it works.
Shall i upload a full pic?Comment
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