DA2077-AL

Document 518 Flyback Transformer For ON Semiconductor NCP1027 The DA2077-AL flyback transformer has been specifically developed for use with ON Semiconductor’s NCP1027 Standby Power Supply for ATX Applications and is specified in Application Note AND8241/D. This transformer is designed for universal input, 85 – 265 Vac. It operates in continuous conduction mode within an input voltage range of 120 Vdc to 375 Vdc and at a 65 kHz switching frequency. Primary to secondary isolation is 2000 Vrms tested for one minute. Coilcraft can also custom engineer a transformer to meet your specific requirements. For free evaluation samples, contact Coilcraft or visit www.coilcraft.com. Part number Inductance Leakage DCR max (Ohms)  inductance2 at 0 A1 ±10% (mH) pri sec aux max (µH)   Turns ratio pri : sec  pri : aux Output DA2077-AL 3.4 2.53 0.042 0.574 114 1 : 0.06 1 : 0.15 5 V, 2 A (sec) 12.5 V, 10 mA (aux) 1. Inductance is for the primary, measured at 10 kHz, 0.1 Vrms, 0 Adc 2. Leakage inductance tested at 100 kHz, 0.1 Vrms 3. Operating temperature range -40°C to +85°C. 4. Electrical specifications at 25°C. 1.100 max 27,94 0.950 max 24,13 10 5 Primary Secondary 6 1 7 Auxiliary 9 0.620 15,75 0.150 ±0.030 3,81 ±0,76 6 5 0.150 3,81 Recommended Board Layout 1 0.200 (7 places) 5,08 1.100 max 27,94 1 0.0346 0,879 10 Bottom View 0.620 15,75 0.060 1,52 US +1-847-639-6400 sales@coilcraft.com UK +44-1236-730595 sales@coilcraft-europe.com Taiwan +886-2-2264 3646 sales@coilcraft.com.tw China +86-21-6218 8074 sales@coilcraft.com.cn Singapore + 65-6484 8412 sales@coilcraft.com.sg Weight: 16.5 g Terminations: Matte tin over copper Packaged: 49 parts per tray Document 518  Revised 12/02/08 © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.