Difference between PCF8563T/F4,112 and PCF8563T/F4,118?

[Cryptonite]

We have been PCF8563T,112 for a number of years but are now told it's no longer available and offered PCF8563T/F4,118 instead. The datasheets for the two parts are identical (Rev. 11 - 26 October 2015) and there is no mention of the suffixes in it.

Can anyone tell me what, if any, the differences are between the 112 and the 118 parts are, please?

[nxf45548]

Hi Steve, 

The difference is the packing type. 118 makes reference to REEL-Reel 13" Q1/T1 and 112 to TUBE NDP DSC BULK PACK 
You can check the following link for more reference about packing:
https://www.nxp.com/docs/en/supporting-information/Packing_Letter_code.pdf