Author Topic: Mosfet replacement, PJA138K vs compatbility with similar ones  (Read 537 times)

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Offline RayRayTopic starter

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Mosfet replacement, PJA138K vs compatbility with similar ones
« on: October 17, 2023, 08:23:53 pm »
Hey Guys. I need to replace a faulty mosfet (PJA138K) that said, it'd take me less time to obtain BSS138Q or BSS138L instead.
The question is, whether they're interchangable with the original or not. The datasheets are quite similar, but not entirely identical, so I just wanna make sure. I could still get PJA138K if it's a must, but it'd just take me longer to do so.
Here are the datasheets for all 3:

https://www.panjit.com.tw/upload/datasheet/PJA138K.pdf
https://www.diodes.com/assets/Datasheets/BSS138Q.pdf
https://www.onsemi.com/pdf/datasheet/bss138lt1-d.pdf

Would appreciate your help.
 

Offline tszaboo

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Re: Mosfet replacement, PJA138K vs compatbility with similar ones
« Reply #1 on: October 17, 2023, 09:31:25 pm »
How is it used?
 

Offline RayRayTopic starter

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Re: Mosfet replacement, PJA138K vs compatbility with similar ones
« Reply #2 on: October 17, 2023, 09:47:30 pm »
It's used on a computer monitor's t-con board, outputting to one of the flat cable connectors that goes into the final destination (left/right controller boards, that are attached the lcd itself with COF, chip on film cables). Hope that's sufficient, can't get more descriptive than that.
 

Offline RayRayTopic starter

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Re: Mosfet replacement, PJA138K vs compatbility with similar ones
« Reply #3 on: October 17, 2023, 10:07:38 pm »
What do you think about this one?
https://www.diodes.com/assets/Datasheets/DMN53D0LQ.pdf
The specs match the original more closely
 

Offline RayRayTopic starter

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Re: Mosfet replacement, PJA138K vs compatbility with similar ones
« Reply #4 on: October 18, 2023, 09:41:01 am »
Ended up ordering DMN53D0LQ, should be fully compatible if judging by the datasheets.
Will update if it worked at a later time
 


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