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B66434 Dataheets PDF



Part Number B66434
Manufacturers EPCOS
Logo EPCOS
Description Ferrites and accessories
Datasheet B66434 DatasheetB66434 Datasheet (PDF)

www.DataSheet4U.com Ferrites and accessories EV 15/9/7 Core Series/Type: Date: B66434 September 2006 Data Sheet  EPCOS AG 2006. Reproduction, publication and dissemination of this data sheet and the information contained therein without EPCOS’ prior express consent is prohibited. www.DataSheet4U.com EV 15/9/7 Core EV cores ■ For DC/DC converters, storage chokes B66434 EV 15/9/7 through EV 30/16/3 10,8+0,6 5,8 _ 0,4 6+0,4 and EMI suppression chokes ■ Delivery mode: single units Magnetic c.

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www.DataSheet4U.com Ferrites and accessories EV 15/9/7 Core Series/Type: Date: B66434 September 2006 Data Sheet  EPCOS AG 2006. Reproduction, publication and dissemination of this data sheet and the information contained therein without EPCOS’ prior express consent is prohibited. www.DataSheet4U.com EV 15/9/7 Core EV cores ■ For DC/DC converters, storage chokes B66434 EV 15/9/7 through EV 30/16/3 10,8+0,6 5,8 _ 0,4 6+0,4 and EMI suppression chokes ■ Delivery mode: single units Magnetic characteristics (per set) Σ l/ A le Ae Amin Ve = 1.4 mm–1 = 38.7 mm = 27.7 mm2 = 25.8 mm2 = 1070 mm3 1,6±0,2 4,8 _ 0,4 9 _ 0,3 Approx. weight 5.7 g/set 14,8 _ 0,5 FEK0333-C +0,7 Ungapped Material N27 N87 N97 AL value nH 1150 ±25% 1250 ±25% 1300 ±25% µe 1280 1390 1445 PV W/set < 0.22 (200 mT, 25 kHz, 100 °C) < 0.60 (200 mT, 100 kHz, 100 °C) < 0.50 (200 mT, 100 kHz, 100 °C) Ordering code B66434G0000X127 B66434G0000X187 B66434G0000X197 Please read Cautions and warnings and Important notes at the end of this document. 2 09/06 7 _ 0,4 35 www.DataSheet4U.com Ferrites and accessories Cautions and warnings Mechanical stress and mounting Ferrite cores have to meet mechanical requirements during assembling and for a growing number of applications. Since ferrites are ceramic materials one has to be aware of the special behavior under mechanical load. As valid for any ceramic material, ferrite cores are brittle and sensitive to any shock, fast changing or tensile load. Especially high cooling rates under ultrasonic cleaning and high static or cyclic loads can cause cracks or failure of the ferrite cores. For detailed information see Data Book 2007, chapter “General – Definitions, 8.1”. Effects of core combination on AL value Stresses in the core affect not only the mechanical but also the magnetic properties. It is apparent that the initial permeability is dependent on the stress state of the core. The higher the stresses are in the core, the lower is the value for the initial permeability. Thus the embedding medium should have the greatest possible elasticity. For detailed information see Data Book 2007, chapter “General – Definitions, 8.2”. Heating up Ferrites can run hot during operation at higher flux densities and higher frequencies. NiZn-materials The magnetic properties of NiZn-materials can change irreversible in high magnetic fields. Processing notes – The start of the winding process should be soft. Else the flanges may be destroid. – To strong winding forces may blast the flanges or squeeze the tube that the cores can no more be mount. – To long soldering time at high temperature (>300 °C) may effect coplanarity or pin arrangement. – Not following the processing notes for soldering of the J-leg terminals may cause solderability problems at the transformer because of pollution with Sn oxyd of the tin bath or burned insulation of the wire. For detailed information see Data Book 2007, chapter “Processing notes, 2.2”. – The dimensions of the hole arrangement have fixed values and should be understood as a recommendation for drilling the printed circuit board. For dimensioning the pins, the group of holes can only be seen under certain conditions, as they fit into the given hole arrangement. To avoid problems when mounting the transformer, the manufacturing tolerances for positioning the customers’ drilling process must be considered by increasing the hole diameter. 3 09/06 www.DataSheet4U.com Important notes The following applies to all products named in this publication: 1. Some parts of this publication contain statements about the suitability of our products for certain areas of application. These statements are based on our knowledge of typical requirements that are often placed on our products in the areas of application concerned. We nevertheless expressly point out that such statements cannot be regarded as binding statements about the suitability of our products for a particular customer application. As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them than the customers themselves. For these reasons, it is always ultimately incumbent on the customer to check and decide whether an EPCOS product with the properties described in the product specification is suitable for use in a particular customer application. 2. We also point out that in individual cases, a malfunction of passive electronic components or failure before the end of their usual service life cannot be completely ruled out in the current state of the art, even if they are operated as specified. In customer applications requiring a very high level of operational safety and especially in customer applications in which the malfunction or failure of a passive electronic component could endanger human life or health (e.g. in accident prevention or life-saving systems), it must therefore be ensured by means of suitable design of the customer application or other action taken by the customer (.


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