Document 601 Flyback Transformers ForSTMicroelectronics POTS interface Developed for the STMicro STLC3075 & STLC3085 Integrated POTS interfaces for home access gateway and WLL. Provides negative voltage ( 46 V typical) to operate the microchip Core material Ferrite Interwinding isolation 1500 Vdc Terminations RoHS tin-silver over tin over nickel over phos bronze. Other terminations available at additional cost. Weight 1.9 2.1 g Ambient temperature