Vileda VR102 identify a component

[Pr0jectN1ne]

Hello, I need help identifying this component. Bottom right leg is shorted to the left side.

Looks like it says 301LA.

Thank you.

[R_J]

It could be due to the low value of the resistor across the pins, is it marked as D5 on the board?

[Pr0jectN1ne]

Originally Posted by R_J

It could be due to the low value of the resistor across the pins, is it marked as D5 on the board?

Even off the board its shorted. yes I believe so its marked d5.

[R_J]

Originally Posted by Pr0jectN1ne

Even off the board its shorted. yes I believe so its marked d5.

D5 would suggest a diode, how does it check to the center leg, It might be a dual diode, is there another one on the board with the same markings?

[Pr0jectN1ne]

Originally Posted by R_J

D5 would suggest a diode, how does it check to the center leg, It might be a dual diode, is there another one on the board with the same markings?

I followed the centre pin the ground of the motor that's not spinning for the brush. There's quite a few of same package but different markings.

[redwire]

It looks more like smd marking S01LA but I cannot find it.

[Pr0jectN1ne]

Originally Posted by redwire

It looks more like smd marking S01LA but I cannot find it.

yea I tried 301LA, 501LA, S01LA but no luck.

[redwire]

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.

[Pr0jectN1ne]

Originally Posted by redwire

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.

I had a look again and I found another one the same for the other motor and that motor spins. I don't know much on this but I try.

[CapLeaker]

I found an S01 as a FJX3001R pre biased NPN, SOT 323. I can’t tell if it is an S or a 3.

[R_J]

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 board

[redwire]

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.

[lotas]

Similar to ST2301A.

[R_J]

Thank you lotas, that sure looks like it.

So I guess the D5 designator IS for another component.

[Pr0jectN1ne]

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?