Document 1257-1 SMT Planar Transformer ForTIUCC289712V/150W Active Clamp Forward Developed for Texas Instruments UCC2897 Active Clamp Forward (PMP9720 reference design) Designed for 48 60 Vdc input; 12 V, 13 A High efficiency; excellent DCR; very low leakage inductance; 1500 Vrms, one minute primary to secondary isolation. Provides 0.009″ (0.229 mm) clearance above the seating plane Core material Ferrite Terminations Matte tin over nickel o.