What is the difference between Power Integrations Part RDHP-1608 and RDHP-1526
Hello Ralph and welcome to the Forum.
The designs are almost the same, the RDHP-1526 (1810-1067-ND) has a higher power rating than RDHP-1608 (1810-1068-ND). The table can be found on the 11th page of this printout: PI_Gate-Driver_ProductCatalog.pdf (power.com)