Found on 4 components on 1 board.
What U4J is
Not identified yet - we know where these parts are, but not their part number. Know what it is, or need one? Ask us.
One code, more than one part. SMD marking codes are short, and manufacturers reuse them: the same code can be a different part in a different package
(a SOT-23 transistor and a SOD-123 diode can both be marked U4J), or from a different maker. Check the package and what the part does in the circuit before replacing it.
Where it's been found
Part number not known yet
boot diode
Recorded by its marking - the part number isn't known yet
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Cvr CV-218CP6 - main board · D17
Part number not known yet
VDS desaturation overcurrent protection circuit. Low side vds + this diode's voltage drop is sampled by the latch npn.
Recorded by its marking - the part number isn't known yet
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Cvr CV-218CP6 - main board · D6
Part number not known yet
Recorded by its marking - the part number isn't known yet
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Part number not known yet
aux diode
Recorded by its marking - the part number isn't known yet
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