Difference between SAK and SAL

[ls1]

Hi Dear Infineon Team

These two MCU chips: SAK-TC277TP-64F200N DC and SAL-TC277TP-64F200N, 

the max operation temperature is different in datasheet.

So, my questions:

1. Is it a change in materials or design that causes this difference?

2. Is there any difference in Epoxy Molding Compound or Tg and CTE value between these two MCU ?

[Aiswarya_A · Accepted solution]

Hi ls1,

It is about the temperature range a particular device is tested. The SAK devices are tested until 125°C and SAL devices are tested until 150°C.

We recommend customers to use the SAK device only with maximum 125°C ambient temperature. If the ambient temperature is higher than 125°C but not more than 150°C, then customers must use SAL device. 

Regards,
Aiswarya.