... sensor transformer ADSL transformer EFD series transformer ER series transformer RM series transformer EP series transformer EPC series transformer EE series transformer The introduction of ... 33, 35, 40, 42, 50, 55, 60 EF series: EF-4539, 16, 20, 25, 32 ERL series: ERL-28, 35, 39, 42, 49 ETD ... transformer T (ring) iron power core, DC filter inductor RM series: RM-4, 5, 6, 8, 10, 12, 14 Feature: ...