Found 4 alternatives for ISL22511WFRU10Z-TK by Rochester Electronics, LLC. Data Acquisition Digital Potentiometers — 10-UFQFN.
IC DGTL POT 100KOHM 10UTQFN
DIGIPOT, 256 PSTN, PQCC10
IC DGT POT 50KOHM 128TAP 10UTQFN