2SC5200 and TTC5200

[wg_ski]

Many Fairchild power transistors have been on the axe since onsemi bought them out.

It is FAR worse with the stuff they acquired from Sanyo. 99% of it was gone in a year or two.

 

[EUVL]

The maximum junction temperature is driven by a local hot spot and not the overall size and average temperature.

Must be very clever die design to have lesser hot spot in a smaller die with the same function / specification.


Patrick

 

[wg_ski]

One could easily have a 200 C maximum hot spot in two different dies of different dimensions. Just making it go from say 5x5 mm to 7x7 does not guarantee a lower peak temp at the hottest spot. Lower average temperature across the entire die for sure. But reliability is driven by the hottest spot.

 

[DPH]

Must be very clever die design to have lesser hot spot in a smaller die with the same function / specification.


Patrick

Getting shunted over to new lines as legacy equipment is retired? Could be uniformity across wafer too.