SN74CB3Q3257: Need theta Jc,Jb -SN74CB3Q3257PWR

Kaitlyn,

The thermal values for the SN74CB3Q3257PWR package are as follows (all values in deg C):

To find the max junction temperature in normal operation you need to calculate the max power passed through the device + the max ambient temperature. 

Please note that since this is a low power passive device the maximum junction temperature possible during normal operation will be much less than the maximum storage temperature for this device before it will cause permeant damage. 

Thank you,

Adam