Product specification production this data sheet contains final specifications. Bobbin cores bc 876 cable shields csa, csc, csf, csu, cst 878 emisuppression beads bd 885 emisuppression beads on wire bdw 886 miniature balun cores mhb 887 multihole cores mhc, mhb, mhr 889 multilayer inductors mli, mlh 892 multilayer suppressors mls, mlp, mln 905 rods rod 916 smd beads bds 917. Determining bobbin fit window bfw transformer parameter. Reinforced nylon 66 class b is a popular choice of material owing to its excellent thermal and mechanical properties. A bobbin has an effective width which is essential to calculate the wire diameters and the construction of the transformer. E257 ef25 4 517 please read cautions and warnings and important notes at the end of this document. Ferrites and accessories e 257 ef 25 core and accessories. Bobbin packages ee257 ef25 14terminal ext, tht, horizontal characteristics. Data sheet status product status definitions preliminary specification development this data sheet contains preliminary data. Nyleze an16 topswitch ef20 transformer tdk ef25 epoxylite 203 ee19 tdk.
Epc19 bobbin pdf 29 products offers 29 epc19 bobbin products. It features many terminals for multiple outputs, split coils, or parallel high current winds. Aet offers coil former, bobbin ee19 hy1945 1 section 10 pin vertical to ferrite cores e1985. After sintering, the ferrite core has the required magnetic. Ef25 bobbin ef25 transformer vdr 110v top244p lnb schematic. This th ee257 ef25 package was developed for functional or special safety cases and low cost, compact footprint requirements.
Bobbin description pins pin part size available size no. The best shape is usually a tradeoff between heat dissapation, magnetic shielding. Common mode choke coilsline filters for ac power supply. Apr 28, 2019 epc19 bobbin pdf 29 products offers 29 epc19 bobbin products.
By pulling on the thread using the bobbin tension meter you can measure and gauge the tension, making adjustments as needed. We have bobbin tooling to meet customers requirement. Gfr polyterephthalate, ul 94 v0, insulation class to iec 60085. E257 ef25 7 517 please read cautions and warnings and important notes at the end of this document. Ef25 ferrite transformer datasheets context search.
Now you wont have to wonder or guess and, yes, you actually can touch your bobbin tension with confidence because you will set it right each and every time, no matter what weight of thread you use. The al value in the table applies to a core set comprising one ungapped core dimension g 0 and one gapped core dimension g 0. An smps transformer design has different transformer parts which are directly responsible for the performance of the transformer. E 257 ef 25 core and accessories b66317, b66208 mouser. Introduce of ee core ee and ei combinations became popular choices ine shapes. Mechanical stress and mounting ferrite cores have to meet mechanical requirements during assembling and for a growing number of applications. In the typical e lamination like ee cores, the center leg one of three legs is twice the width of either outer leg.
Buy now to get the best prices with fast delivery on all epcos products. Bobbin packages ee257 ef25 10terminal, tht, vertical characteristics. Bobbin winding area core data power levelw flyback test frequency. Parameters core bobbin e25 7 ef25 margi core and bobbin type core manuf. From your example datasheet, you would need to do the following assuming you are using the bobbin b66208b. The picture on the right shows how ee cores mate with this bobbin. Aet offers coil formers, bobbins ef25 vertical lub horizontal, single or multi section, tht and smd to ferrite cores e257. Most components are made to a specific customer order, in accordance with. Formers bobbins, covers and accessories all use ul approved materials from leading suppliers such as solvay, dsm, lati and dupont. E25 bobbin datasheet, cross reference, circuit and application notes in pdf format. Mnzn ferrite core for switching power supplies e series. Singer featherweight 221 222k bobbin tension meter the. The reason why we dont use the mean length is because the software will already take into account the layers, for the added length of wire on. Rohs revised 122310 pg 2 of 2 mechanical drawings aef251297 aef252547 aef252611 aef252676 aef252804.
Ef25 high frequency flyback transformer aef252676 pa2676nl allied components subject. Offline industrial controls lighting metering white goods. Pdf ef25 7kh8p t375j p252c t375j ef25 bobbin p252c t375 ef25. This th ee257 ef25 package was developed for special safety cases and low cost requirements. All the critical bobbin characteristics are included in these pages and on the drawing for each bobbin.
Category mount core type description pintype pin row distance pin pitch winshine part no. Features technical specs extended information related items. Eecore ee ferrite core category ee5 ee6 ee8 ee11 ee. We offer a comprehensive line of standard bobbins that are available in a large variety of sizes and flange designs. Bobbin fit window bft aw bobbin winding area bw effective winding width of bobbin 61. Efd bobbins, efd20, efd15, efd12, efd25, efd30 datasheet. Bobbins ef25 vertical high frequency transformer bobbin. Smps transformers, pulse transformers, toroidal transformers. When the flux density of a core is increased, hysteresis.
Ee transformers and ef transformers smps transformerspulse transformers are being made according to customer specifications or according to specifications drafted by our designers with customer specified parameters. Not only this, a bobbin of a transformer also has a dotted mark which provides the information of primary windings. Bobbin types the bobbins in this catalog have been manufactured to match the industrys popular ferrite, powder and lamination core shapes and sizes. Coil former magnetic axis horizontal or vertical material. The parts present in a transformer are explained below, we will learn the importance of each part and how it should be selected for your transformer design. Ef25 power transformer modules components datasheet pdf data sheet free from. How to design your own transformer for smps power supply circuits. Reproduction, publication and dissemination of this data sheet and the. Ferroxcube reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. Bobbin cores bc 876 cable shields csa, csc, csf, csu, cst 878 emisuppression beads bd 885 emisuppression beads on wire bdw 886. Rcf15sc20 epoxy 9001a 9001a t375j er philips 3f3 ferrite material material t375j 9001b. Eecore ee ferrite core category ee5 ee6 ee8 ee11 ee ee12. The commonly used ee16 transformer bobbin is shown.
Since ferrites are ceramic materials one has to be aware of the special behavior. Cores electronic parts page 5 electronic components. The 0706905 bobbin is an extended rail version of our standard pq2016 bobbin. Aet offers coil formers, bobbins e2511 125 and p2538 horizontal 1 section 8 pin to ferrite cores e2511. Here is the datasheet of the core b66317g0000x127 im going to use. Apr 11, 2020 epc19 bobbin pdf 29 products offers 29 epc19 bobbin products. This allows us to service you better by having industry standard sizes and flanges available for immediate shipment. Transformer parameters core material ef25, gapped for alg of 220 nht. Offline dcdc converter industrial controls lighting metering white goods telecom charging standby power. Ef25 ferrite transformer datasheet, cross reference, circuit and application notes in pdf format. Free tutorials, videos, and instructions for rufflers, sewing sewing machine walking feet, and more. Inductorstransformers customizable, surface mount torodial, kool mu, powdered iron and mpp cores.
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