? coilcraft, inc. 2010 specifications subject to change without notice. please check our website for latest information. flyback transformers document 245 document 245 revised 01/31/05 leakage part inductance 1 dcr inductance 2 isolation 3 turns ratio weight application number 10% (mh) max (ohms) max (h) (vrms) pri : sec pri : aux output (g) 3.5 w Y8844-AL 2.9 4.25 (8-5) 80 1500 1 : 0.08 ? 6.5 v, 0.54 a 6.7 0.07 (4-1) 10 w y8848-al 1.8 1.77 (10-6) 60 2000 1 : 0.1 ? 12 v, 0.83 a 16 0.038 (5-1) 70 w z9007-bl 0.7 0.261 (12-7) 16 1500 1 : 0.16 4 ? 16 v, 4.2 a 52 0.013 (6-1) 0.013 (4-3) 70 w z9260-al 0.7 0.261 (12-7) 26 2000 1 : 0.16 4 1 : 0.15 16 v, 4.2 a(sec) 54 with auxilary winding 0.013 (6-1) 15 v, 0.2 a (aux) 0.013 (4-3) 0.045 (11-8) these transformers have been specially developed for use in flyback power supplies w ith the on semiconduc- tor 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 . a 1 12 6 7 bottom view 3 3 1 1 4 4 6 6 11 7 7 8 z9007-bl z9260-al pri pri sec sec 1 5 10 6 pri sec y8848-al 1 4 8 5 bottom view e f g 1 4 8 5 pri sec Y8844-AL b c d b c d a 5 1 6 10 bottom view 1 1 e (7 places) h f g a b c d 1 e (9 places) h f g 12 12 aux a max b max c max d min e f g dia h (1 place) y8844-a 0.72 0.79 0.55 0.118 0.150 0.600 0.030 inches 18,3 20,1 14,0 3,0 3,81 15,24 0,76 mm y8848-a 1.10 1.10 0.95 0.12 0.200 0.620 0.044 0.150 inches 27,9 27,9 24,1 3,05 5,08 15,75 1,12 3,81 mm z9007-b, z9260-a 1.45 1.45 1.17 0.12 0.200 0.875 0.044 0.150 inches 36,8 36,8 29,7 3,05 5,08 22,2 1,12 3,81 mm 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. 4. primary to secondary turns ratio specified with secondary windings connected in parallel. 5. operating temperature range -40c to +85c. 6. electrical specifications at 25c. for on semiconductor ncp1200 controller terminations: tin-silver over tin over copper for z9007-bl and z9260-al, secondary windings to be connected in parallel on the circuit board. Y8844-AL y8848-al z9007-bl, z9260-al packaged 49 per tray packaged 30 per tray packaged 25 per tray
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