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AC-DC SERIES: P215 Third generation of planar transformers Py Features E -High power planar transformer for AC/DC SMPS. eg -According UL1950 / EN60950. 5 -UL 94V0 material. fs -Storage temperature from -20°C to 130°C. 5 -Operating temperature -20°C to 85°C. g -Power up to 15W. Fy Electrical specifications Input Output Output Typ Leakage Turns Max Total Part Number Voltage Voltage Current Power Frequency Duty Topology Inductance inductance Ratio losses vde(V) (Vv) (A) (W) (KHz) cycle (wH#25) (WH) (PrisSec) (W) P21SFK3DX1 100-350 3,3 45 15 400 0,47 Flyback 144 0,3 30:1 0,46 P21SFK3DX2 100-350 5 3 15 400 0,41. Flyback 138 0,3 27:1 0,46 P215SFK3DX3 100-350 12 1,25 15 400 0,46 Flyback 144 0,3 10:3 0,46 Notes Replace X by S for SMD application and P for PTH application. Dimensions Recommended PCB layout Recommended PCB layout Schematics D Primary Secondary Auxiliar FLYBACK 149