Can You Help Me Correctly Identify This Capacitor

[RetroComputingGrotto]

I have a Compaq Contura 25/4 laptop on my workbench at home at the moment (yes it's a 32 year old laptop) and when I tested it I saw some magic smoke come from it!

Fortunately the power board is separate to the main motherboard so hopefully this will make it easier to repair..



Here is a close up of the blown capacitor:



I'm assuming it is a 2.2µF 25V ceramic capacitor that I need to order a replacement of? Not sure if it's a 'standard' one or a tantalum one for example so looking for your expertise and experience on this one!

It goes without saying (but I'll say it any way) I will replace all the electrolytic capacitors on the board whilst I have it out of the machine.

[m1ch43lzm]

Looks like a 2.2uF 25V tantalum capacitor, your guess is correct
Tantalum caps when they fail they go

[m1ch43lzm]

Looks like a 2.2uF 25V tantalum capacitor, your guess is correct
Tantalum caps when they fail they go

[RetroComputingGrotto]

Looks like a 2.2uF 25V tantalum capacitor, your guess is correct
Tantalum caps when they fail they go

Thanks for confirming my suspicions - much appreciated 😎

[RetroComputingGrotto]

The postman's been!


This is my blog on what I'm attempting to repair: https://www.retrocomputing.co.uk/202...q-contura.html

I've now replaced the caps and just need to test it to see if anything else is wrong with the board, but I'm hoping it's just the caps as it is 32 years old this laptop!

[RetroComputingGrotto]

We have picture!


So pleased my repair has brought this 32 year old laptop back to life - worth attempting to repair the hinge now and if that's successful I need to replace the 120MB IDE hard disk as that's just clicking!

[stj]

next time use a 35v part.
25v is too close to the charger voltage for comfort.