Hifonic Audio Driver Board

[Formas]

These boards are at large been address on this community and covered almost 98% each time , my problem tho is the properly identification of the three largest transistors on this type of board marking PD2.
Is this part PZTA92? if it is can the A92(TO-92 case) can be used as replacement?
Is it also the same as the 2D smd (SOT-23 case) transistor?
Or the exact case style must be used as replacement as the SOT-223 uses the tab to dissipate whatever heat to be sinked?

 

[Perry Babin]

P2D. Same silicone as 2D but much more capable of cooling through the tab. If someone is paying you to repair this, order the correct parts.

 

[Formas]

No, it wasnt a job, was just curious on the variety of the results from the SMD Guide you referred me to, and was just visiting some old post to widen my knowlege.
So if any of the original packages arent at hand, can it be replaced temporary for test purposes by the none sinked packages?

 

[Perry Babin]

The component inside the other packages is the same. The smaller components would likely run very hot (possibly to failure) but it depends on the application.