e l e c t r o n i c s i n c . power over ethernet (poe/pd) flyback 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 dc/dc converter as a flyback transformer in poe/powered devices (pd) ? switching frequency : 300 khz to 400 khz ? add ?lf?after part number for lead free ? input voltage : 36-57 vdc ? 40 % duty cycle typ. @ 48 vdc input voltage ? ul 94v-0 recognized materials ? ul 1446 class b insulation system ? storage temperature : -40? to +125? ? operating temperature : -40? to +85? epc3248g-x & epc3248g-x-lf product performance is limited to specified parameters. data is subject to change without prior notice. unless otherwise specified dimensions are in inches /mm ?.010 /.25 csc3248g-x & -lfa rev. 5 8-15-11 ft electrical specifications @ 25? poe class 0 0 0 1 1 1 2 2 2 3 3 3 4(poe+) 4(poe+) 4(poe+) part number epc3248g-1 epc3248g-2 epc3248g-3 epc3248g-4 epc3248g-5 epc3248g-6 epc3248g-7 epc3248g-8 epc3248g-9 epc3248g-10 epc3248g-11 epc3248g-12 epc3248g-13 epc3248g-14 epc3248g-15 chipset dpa425 dpa425 dpa425 dpa423 dpa423 dpa423 dpa424 dpa424 dpa424 dpa424/5 dpa424/5 dpa424/5 dpa426 dpa426 dpa426 pd power (watts) er14.5 er14.5 er14.5 er9.5 er9.5 er9.5 er11 er11 er11 er14.5 er14.5 er14.5 efd20 efd20 efd20 package type 1 1 1 2 2 2 1 1 1 1 1 1 3 3 3 schematic default default default optional optional optional optional optional optional optional optional optional reserved reserved reserved class usage notes : 1. lead finish 2. peak solder rating epc3248-x snpb 225? 3. moisture sensitive levels (msl) 1 (unlimited, 30?/60%rh) epc3248-x-lf hot dipped sn or sncu 260? 1 (unlimited, 30?/60%rh) 12.95 12.95 12.95 3.84 3.84 3.84 6.49 6.49 6.49 12.95 12.95 12.95 max. 0.44 0.44 0.44 0.44 0.44 0.44 3.84 3.84 3.84 6.49 6.49 6.49 min. voltage (vdc) current (amp.) 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 fb bias 3.92 2.59 1.08 1.16 0.77 0.32 1.97 1.30 0.54 3.92 2.59 1.08 12.12 8.0 3.33 v out 13.2 13.33 12.0 13.2 13.33 12.0 13.2 13.0 12.0 13.2 13.2 12.0 13.2 13.2 12.0 fb bias 3.3 5.0 12.0 3.3 5.0 12.0 3.3 5.0 12.0 3.3 5.0 12.0 3.3 5.0 12.0 v out ? isolation : pri., bias to sec. ; 1500 vrms ? isolation : pri. to bias ; 500 vrms schematic 1 reserved reserved reserved primary ocl (? ?10%) @ 300 khz, 0.1 vrms 120 120 120 200 200 200 120 120 120 120 120 120 25 25 25 2.5 2.5 2.5 2.5 2.5 2.5 3.5 3.5 3.5 2.5 2.5 2.5 4.0 4.0 4.0 le (? max.) @ 300 khz, 0.1 vrms v in (pins 1-3) 5 2 1 3 4 v out fb/bias 10 9 7 6 schematic 3 v in (pins 1-3) 11 6 2 1 10 8 7 3 5 v out 9 12 fb/bias schematic 2 v in (pins 1-3) 8 4 2 1 7 6 5 3 v out fb/bias
e l e c t r o n i c s i n c . power over ethernet (poe/pd) flyback transformer tel: (818) 892-0761 fax: (818) 894-5791 http://www.pca.com pca electronics, inc. 16799 schoenborn st. north hills, ca 91343 epc3248g-x & epc3248g-x-lf product performance is limited to specified parameters. data is subject to change without prior notice. unless otherwise specified dimensions are in inches /mm ?.010 /.25 csc3248g-x & -lfb rev. 5 8/15/11 ft package er14.5 0.244 max. (6.20) 0.480 (12.20) 0?8 0.024 (0.600) 0.010 (0.254) 0.520 (13.20) 0.079 (2.00) 0.063 (1.60) 0.063 (1.60) 0.079 (2.00) 0.028 (0.700) 0.008 (0.200) 0.457 max. (11.60) 0.315 (8.00) 10 6 5 1 0.362 (9.20) pca epc3248g-x d.c. package er11 package efd20 (reserved for class 4 poe+) 0.591 (15.00) 0.118 (3.00) 0.854 max. (21.70) 0.835 max. (21.20) 1 12 6 7 0.028 (0.700) marking : pca epc3248g-x d.c. 1.055 (26.80) 0.080 (2.03) 0?8 0.010 (0.250) 0.425 max. (10.80) 0.016 (0.400) 0.118 (3.00) 1.095 (27.82) 0.138 (3.50) packaging information tube: 36 pcs/tube t/r: 350 pcs/13?reel packaging information tube: 52 pcs/tube t/r: 600 pcs/13?reel packaging information tube: 44 pcs/tube t/r: 400 pcs/13?reel packaging information tray: 40 pcs/tray 0.394 (10.00) 0.630 (16.00) 0?8 0.028 (0.700) 0.012 (0.305) solder pad layout 0.670 (17.02) 0.098 (2.50) 0.067 (1.70) 0.067 (1.70) 0.295 (7.50) 0.098 (2.50) 0.028 (0.700) 0.014 max. (0.350) 0.610 (15.50) 10 6 5 1 pca epc3248g-x date code package er9.5 0.235 max. (6.00) 0.455 (11.55) 0?8 0.029 (0.725) 0.010 (0.254) solder pad layout 0.495 (12.57) 0.079 (2.00) 0.063 (1.60) 0.063 (1.60) 0.079 (2.00) 0.028 (0.700) 0.006 (0.150) 0.417 max. (10.60) 0.236 (6.00) 8 5 4 1 0.319 (8.10) pca epc3248g-x d.c. solder pad layout solder pad layout
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