e l e c t r o n i c s i n c . flyback power transformer tel: (818) 892-0761 fax: (818) 894-5791 http://www.pca.com pca electronics, inc. 16799 schoenborn st. north hills, ca 91343 ? used in smps flyback topology ? designed for use with power integration chip ? reinforced insulation (triple insulated wire) ? add ?lf?after part number for lead-free ? ul 94v-0 recognized components ? ul 1446 class f insulation system ? very low core loss epc3127-x & epc3127-x-lf product performance is limited to specified parameters. data is subject to change without prior notice. electrical parameters @ 25?c unless otherwise specified dimensions are in inches /mm ?.010 /.25 csc3127-x & -lf rev. 8 2/22/07 rr package voltage (vdc) l prim. [pins 2-1] (? ?10%) 1900 1900 2400 475 2800 @ 10 khz, 0.1 vrms tny268p tny266p top232y/top242y top244p tny267 chipset 120-375 120-375 120-375 120-375 120-375 v in 5 5 5 13.55 3.3 v out 1 current (adc) pca part number epc3127-1(-lf) epc3127-2(-lf) epc3127-3(-lf) epc3127-4(-lf) { schematic a 1 2 3 4 v in fb 7 8 v out 1 1 2 3 4 5 6 7 8 v in fb v out 1 v out 2 schematic b --- --- 3.3 --- --- v out 2 15 15 15 15 15 fb 3.0 2.0 2.0 1.2 2.0 v out 1 --- --- 2 --- --- v out 2 .05 .05 .05 .05 .05 fb a a b a a schematic dielectric rating (vrms) between v out wdg? to core 1 sec. 4500 or 60 sec. 3750 v in wdg to all v out wdg? & core 1 sec. 4500 or 60 sec. 3750 between v in wdg & fb wdg 1 sec. 1500 ? switching frequency : 132 khz ? isolation : 4500 vrms .787 (20.00) .590 typ. (15.00) .728 max. (18.50) .138 (3.50) .031 (.800) .815 (20.70) .552 max. (14.00) .063 (1.60) .197 (5.00) .590 typ. (15.00) pca epc3127-x(-lf) d.c. pin 1 i.d. .197 (5.00) .051 (1.30) .590 (15.00) .590 (15.00) 1 2 3 4 5 6 7 8 component side notes : 2. peak solder rating (wave solder only) 3. weight 1. lead finish 4. packaging information tray : epc3127-x-lf 260? 10 (+2/-0) seconds tbd grams hot tin dip (sn) tbd pieces/tray epc3127-x 260? 10 (+2/-0) seconds tbd grams snpb tbd pieces/tray
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