22P10

[imraneesa]

hi all,

Can i use FQPF22P10 ON Semiconductor | Discrete Semiconductor Products | DigiKey in place of 22P10.

22P10 became obsolete. it only have plastic casing in digikey. is it ok to use them in the amplifier?

Best Regards,
Imran Mohammad

 

[Perry Babin]

They should b OK if you remove the insulator that was used with the non-encapsulated version.

You'll still use heatsink compound.

 

[MarioRestucci]

remaining IN-TOPIC, there are amplifiers that use fqp22p10 and fqp33n10 (STEG, AUDIOSYSTEM, DRAGSTER, CIARE amplifiers)
These, unfortunately, are a bit difficult to find; it would be very useful to know if something really adaptable exists that can replace the originals without any kind of problem.
For example, in the past I used irf540n + irf9540n (sometimes even the non-N version, without any difference) but it was important to understand if there were not really problems, or in the long run there would be driving problems.
What do you think?

 

[imraneesa]

They should b OK if you remove the insulator that was used with the non-encapsulated version.

You'll still use heatsink compound.

The metal version is having continuous drain current as 22A and this plastic is only 13.2A that will cause any problem?
This is for the amp Boston GT2300.
what about if i change it to some other matching? please advise.

 

[Perry Babin]

I would expect the internal silicon die to be identical in the two FETs. The difference is that the metal version can get rid of more heat under test conditions. Add an insulator (between the metal tab and the heatsink) and you'll have something similar to the fully encapsulated version. Remove the original insulator and use heatsink compound and I'd expect the encapsulated version to work.

 

[imraneesa]

I got the parts today. after installing each mosfet on either side. the amplifier came on but there is no audio on outputs. checked gate waveform and found no oscillations. it have straight positive dc on one side mosfet gates and straight negative on other half mosfet gates. i did not find any bad transistors or bad parts.