Document 245 For ON Semiconductor NCP1200 Controller Flyback Transformers These transformers have been specially developed for use in flyback power supplies with the ON Semiconductor NCP1200 PWM Current-Mode Controller. They are designed for universal input, 85 – 265 Vac. Coilcraft can also custom engineer a transformer to meet your specific requirements. For free evaluation samples, contact Coilcraft or visit www.coilcraft.com. Leakage inductance2 max (µH) Turns ratio pri : sec pri : aux Application Part number Inductance1 ±10% (mH) 3.5 W Y8844-AL 2.9 4.25 (8-5) 0.07 (4-1) 80 1500 1 : 0.08 — 6.5 V, 0.54 A 10 W Y8848-AL 1.8 1.77 (10-6) 0.038 (5-1) 60 2000 1 : 0.1 — 12 V, 0.83 A 16 70 W Z9007-BL 0.7 0.261 (12-7) 0.013 (6-1) 0.013 (4-3) 16 1500 1 : 0.164 — 16 V, 4.2 A 52 70 W Z9260-AL 0.7 0.261 (12-7) 0.013 (6-1) 0.013 (4-3) 0.045 (11-8) 26 2000 1 : 0.164 1 : 0.15 16 V, 4.2 A(sec) 15 V, 0.2 A (aux) 54 with Auxilary winding DCR max (Ohms) 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. Isolation tested between primary and secondary on all parts and between primary and auxiliary on Z9260-AL. Y8844-AL Isolation3 (Vrms) Weight (g) Output 6.7 4. Primary to secondary turns ratio specified with secondary windings connected in parallel. 5. Operating temperature range -40°C to +85°C. 6. Electrical specifications at 25°C. Y8848-AL Z9007-BL, Z9260-AL B B A C C For Z9007-BL and Z9260-AL, secondary windings to be connected in parallel on the circuit board. B D 4 5 1 8 D Packaged 30 per tray Pri Z9260-AL 12 Sec 1 5 10 4 Pri F G 1 E (7 places) Sec 6 1 H 1 6 Pri 12 4 7 11 Bottom view Sec Aux 3 1 1 8 F A 1 Y8848-AL 5 3 10 Bottom view 1 Y8844-AL Sec 7 1 7 6 4 12 E Pri 6 A Bottom view Packaged 49 per tray 8 D Z9007-BL 6 5 C G E (9 places) H A max B max C max D min E F G dia Y8844-A 0.72 18,3 0.79 20,1 0.55 14,0 0.118 3,0 0.150 3,81 0.600 15,24 0.030 0,76 H (1 place) Y8848-A 1.10 27,9 1.10 27,9 0.95 24,1 0.12 3,05 0.200 5,08 0.620 15,75 0.044 1,12 0.150 3,81 Packaged 25 per tray Z9007-B, Z9260-A 1.45 36,8 1.45 36,8 1.17 29,7 0.12 3,05 0.200 5,08 0.875 22,2 0.044 1,12 0.150 3,81 Terminations: F Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2008 G Tin-silver over tin over copper Document 245 Revised 01/31/05