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I accidentally killed a transistor in my HP Elitebook 820 G3 and need help identifying it. I searched the internet for about an hour and can't find the code that ist printed on the component to buy the correct replacement. It is located near the power connector.

I hope someone can help me by telling me what kind of transistor(?) this is.

Picture of the transistor

enter image description here

enter image description here

JRE
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Nobi83
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    It doesn't make any sense to me, but that looks like a Cyrillic **d,** like 403д – tripleee Dec 29 '20 at 11:36
  • are you sure it was SOT23? – Cubic273.15 Dec 29 '20 at 12:03
  • and where this part? can you take a picture of your board and draw a circle where this part is? – Cubic273.15 Dec 29 '20 at 12:10
  • thanks for the replies! I'm almost sure that its SOT23. I added pictures with the location on the board. – Nobi83 Dec 29 '20 at 12:35
  • The Refdes starts with a D, suggesting a diode, not a transistor. Furthermore the proximity to the power connector suggests TVS (suppression diode). Did you by any chance have a power surge? – Tom Carpenter Dec 29 '20 at 12:45
  • You can get a whole replacement PCB for perhaps less than $50. I couldn't quickly find any repair videos for that model that showed that side of the board, or any photos of sufficient resolution, so no chance of seeing it from them - have you tried searching? – Andrew Morton Dec 29 '20 at 12:58
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    OK, more googling - it's very likely to be a PJSOT24C (SOT23 housing): https://translate.google.co.uk/translate?hl=en&sl=pl&u=https://www.elvikom.pl/hp-elitebook-840-g3-6050a2822301-mb-a01-prosba-o-identyfikacje-elementu-t51119.html&prev=search&pto=aue – Andrew Morton Dec 29 '20 at 13:01
  • @AndrewMorton Marking codes don't match - the PN you gave has marking 2BC or 6BC. But will likely be a different PN of similar function - they are pretty interchangable. – Tom Carpenter Dec 29 '20 at 13:24
  • TVS diode array sounds promising. I'll try to get Vishay GSOT24C. It's pretty the same as PJSOT24C. – Nobi83 Dec 29 '20 at 13:32
  • @Nobi83 I suggest waiting until a few more people have commented - as Tom Carpenter pointed out, the package marking is different. If you knew who HP got the component from, that would be a good place to look. – Andrew Morton Dec 29 '20 at 13:37

1 Answers1

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It's a PJSOT24C TVS diode. Datasheet here - 'SINGLE AND DUAL TVS FOR ESD / TRANSIENT PROTECTION'.

I found it via this schematic for the HP Elitebook 820 G3. Screenshot of the relevant section:

Screenshot snippet of HP Elitebook 820 G3 schematic document

Darius
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