Document 374 Flyback Transformers ForONSemiconductor NCP101X Developed for the ON Semiconductor NCP101X Self-Supplied Monolithic Switcher A9619-CL provides 7 Watts output for 120 Vac applications B0570-BL provides 15 Watts for 230 Vac applications Coilcraft can also custom engineer a transformer to meet your specific requirements. For free evaluation samples, contact Coilcraft or visit www.coilcraft.com. Leakage Output Output Output Isolation Part  Inductan.