Astro Flight component problem
 

Hi guys,

I have an Astro Flight 109 Charger, and I had a problem with it.

I need to know what component is in this photo below or the eletric schema or photo like below.

http://www.serpes.com.br/ntn/astro109.jpg

If somebody knows what component is that, I will appreciate the information.

Best Regards
nTn

RE: Astro Flight component problem
 

Not sure but most likely a surface mount capacitor.

RE: Astro Flight component problem
 

I guess a varistor, because it's green like a smd varistor. But I'm not sure.

Thanks

RE: Astro Flight component problem
 

I'd really like to help but there no markings on his component what so ever.

Maybe you can help me, I had one of the 7 power mosfet like devices blow out - I can not even read the markings on it anymore. That would be on the other side of the board (right on your photo), second one from the outside. Can you please provide me with whatever is written on this part?

Much appreciated!

RE: Astro Flight component problem
 

Hi,

The power mosfet is IRF 4905.

Can you send me a photo from the board? And do you known how many ohms have on the component that blow out?

Thank you!

RE: Astro Flight component problem
 

I must be getting old - a picture of this board revealed some markings.

SMS U20 6
R025 1%


By the way, this is what my HEXFET looks like.

RE: Astro Flight component problem
 

Thank you for the Photos!

I hope that you recover your charger!

[]s