The Sandisk SSD plus is an entry level SSD and it does not look like they release any endurance specs for this drive. you can see more info below.
https://www.tomshardware.com/reviews/dramless-ssd-roundup,4833-8.html
The Sandisk Ultra 3D SSD has TBW rating on the product page below under specification.
https://www.sandisk.com/home/ssd/ultra-3d-ssd
they also post TBW for the X and Z series drives
https://www.sandisk.com/business/computing/x600
