When looking for SiTime SiT8920B-series oscillators, a question that arises is what the different letter designations at the very end of the part number mean. As an example, part number SIT8920BM-73-33E-32.000000, which can come as SIT8920BM-73-33E-32.000000T, …000Y, …000D, or …000E in addition to this digit being gone entirely. What does this callout indicate?
Per SiTime’s datasheet, these are all packaging callouts indicating different sizes and product counts of reel packaging. As per the snippet shown here:
As these products are frequently custom ordered from SiTime, other packaging-related callouts not mentioned on the datasheet exist to fit the specific needs of those customers. These packing callouts do not impact the functionality of the parts, however.