1 power rating: up to 800w height: 18.3mm max footprint: 33.5mm x 26.8mm max frequency range: 200khz to 700khz isolation (primary to secondary): 1500vdc patent pending usa 858 674 8100 germany 49 7032 7806 0 singapore 65 6287 8998 shanghai 86 21 62787060 china 86 755 33966678 taiwan 886 3 4356768 electrical specifcations @ 25c - operating temperature -40c to +125c part number turns ratio primary inductance ( h min) leakage inductance ( h max) dcr ( m max) primary secondary a secondary b primary secondary a secondary b PH9278NL 3t 3t 3t 37.8 0.12 2.4 2.4 2.4 PH9278NL mechanical schematic .005[.13] 5 surf a ces weight ......................... 45 grams tray ............................. 30/tray tape & reel ....................... 45/reel dimensions: inches mm unless otherwise specified, all tolerances are .010 0.25 p729.a (2/14) pulseelectronics.com high frequency batcore planar transformer er25+ (up to 800w) http://
2 for more information pulse worldwide headquarters 12220 world trade drive san diego, ca 92128 u.s.a. tel: 858 674 8100 fax: 858 674 8262 pulse europe zeppelinstrasse 15 71083 herrenberg germany tel: 49 7032 7806 0 fax: 49 7032 7806 12 pulse china headquarters b402, shenzhen academy of aerospace technology bldg. 10th kejinan road high-tech zone nanshan district shenzen, pr china 518057 tel: 86 755 33966678 fax: 86 755 33966700 pulse north china room 2704/2705 super ocean finance ctr. 2067 yan an road west shanghai 200336 china tel: 86 21 62787060 fax: 86 2162786973 pulse south asia 135 joo seng road #03-02 pm industrial bldg. singapore 368363 tel: 65 6287 8998 fax: 65 6287 8998 pulse north asia 3f, no. 198 zhongyuan road zhongli city taoyuan county 320 taiwan r. o. c. tel: 886 3 4356768 fax: 886 3 4356823 (pulse) fax: 886 3 4356820 (fre) performance warranty of products ofered on this data sheet is limited to the parameters specifed. data is subject to change without notice. other brand and product names mentioned herein may be trademarks or registered trademarks of their respective owners. ? copyright, 2014. pulse electronics, inc. all rights reserved. PH9278NL notes 1. leakage inductance is measured on winding (1-3) with (4,5,6)shorted. 2. the nl sufx indicates a rohs-compliant part number. 3. other primary and secondary turns are available on request. 4. optional tape & reel packaging can be ordered by adding a t sufx to the complete number (e.g. PH9278NL becomes PH9278NLt). 5. to determine if the transformer is suitable for your application, it is neccesary to ensure that the temperature rise of the component (ambient plus temperature rise) not exceed its operating temperature. to determine the approximate temperature rise of the transformer, refer to the graphs below. 0. 000 0. 500 1. 000 1. 500 2. 000 2. 500 3. 000 05 00 1000 150 02 00 02 50 0 co re lo ss (w ) co re lo ss= 2.61e -1 3* (d el ta b) ^2.5*( fr eq _k hz )^ 1.8 1 de lt a b (g au ss ) core lo ss vs flux dens it y 100k hz 200k hz 300k hz 400 kh z 500k hz 600k hz 700 kh z dl et ab (g ua ss) = 5.88 e+ 4*vi n_ mi n* du ty cy cl e_ma x/ (f re q_ khz* pr i_ tu rn s) 0 10 20 30 40 50 60 70 80 90 0123456789 te mp er at ur e ri se (c ) po wer di si pa ti on (w ) te mp er at ur e ri se vs. po we r di si pa ti on core loss vs flux density temperature rise vs. power disipation pulseelectronics.com high frequency batcore planar transformer er25+ (up to 800w) p729.a (2/14)
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