EFD/EV/DE Cores Series/Type: EFD /8/ The following products presented in this data sheet are being withdrawn. Ordering Code Substitute Product Date of Withdrawal Deadline Last Orders Last Shipments B66B6008T002 2003-08-08 200-02-29 200-08-3 For further information please contact your nearest EPCOS sales office, which will also support you in selecting a suitable substitute. The addresses of our worldwide sales network are presented at www.epcos.com/sales.
EFD /8/ Core B663 E core with flattened, lower center leg for especially flat transformer design For DC/DC converters EFD cores are supplied as single units Magnetic characteristics (per set) Σl/A = 2,27 mm l e = 3 mm A e = mm 2 A min = 2,2 mm 2 V e = 0 mm 3 Approx. weight 2,8 g/set g,6±0, ±0,,3±0, ±0,3 0,2±0,,±0,2 2,±0, 7,±0, FEK07-2 Ungapped Material A L value µ e A Lmin P V W/set N9 600 + 30/ 20 % 080 330 < 0, (0 mt, 00 khz, 00 C) N87 780 + 30/ 20 % 00 60 < 0,28 (200 mt, 00 khz, 00 C) B663-G-X9 B663-G-X87 Gapped Material A L value µ e g approx. mm N87 00 ± 0 % 80 0,7 B663-U00-K87 60 ± % 288 0,08 B663-U60-L87 The A L value in the table applies to a core set comprising one ungapped core (dimension g = 0) and one gapped core (dimension g > 0). Calculation factors (for formulas, see E cores: general information, page 382) Material Relationship between Calculation of saturation current air gap A L value K (2 C) K2 (2 C) K3 (2 C) K (2 C) K3 (00 C) K (00 C) N87 29,7 0,676,2 0,796 33,2 0,873 Validity range: K, K2: 0,0 mm < s <,00 mm K3, K: 30 < A L < 280 07 08/0
EFD /8/ Accessories B66 Material: GFR thermosetting plastic; UL 9 V-0, insulation class to IEC 6008: B66-B: F max.operating temperature C; color code green B66-W: H max.operating temperature 80 C; color code black Solderability: to IEC 60068-2-20, test Ta, method (aging 3): 23 C, 2 s Resistance to soldering heat: to IEC 60068-2-20, test Tb, method B: 30 C, 3, s Winding: see Processing Notes, page 7 Squared pins Material: Stainless spring steel (0,2 mm) Sections A N mm 2 l N mm A R value µω Pins, 3,9 79,7 8 B66-B008-D B66-W008-D (ordering code per piece, 2 are required) B66-B2000 ±0,2 6,9 _ 0, 2 3 6,±0,2 3,7 Mounting holes 8 ø+0,,6, 3,6 min.,8 max. FEK027-J 8 7 6 3,7 Duroplast,2 Marking of pin 0, _ 0,,+0, 2, 8,3 max.,7 0, _ 0,2 7, _ 0,2 8,8 min.,6 _ 0, 3,±0,2 0, CuSn6, tinned FEK08-A 08 08/0
EFD /8/ Accessories B66 SMD coil former with J terminals Material: GFR liquid crystal polymer (UL 9 V-0, insulation class to IEC 6008: F max. operating temperature C), color code black Solderability: to IEC 60068-2-20, test Ta, method (aging 3): 30 C, s Resistance to soldering heat: to IEC 60068-2-20, test Tb, method B: 30 C, 3, s permissible soldering temperature for wire-wrap connection on coil former: 00 C, s Winding: see Processing Notes, page 60 Material: Mounting: Stainless spring steel (0,2 mm) Preferred assembly direction from the top For marking and improved processing on assembly machines. See under coil former for material and resistance to soldering heat. Sections A N l N A R value Terminals mm 2 mm µω 8, 3, 66,7 8 B66-B6008-T 2 7, 3, 70, 8 B66-B6008-T2 (ordering code per piece, 2 are required) B66-B2000 B66-A7000 6, _ 0,2 0,±0,0 0,6±0,0 0,±0,0 _ 0,2 0, _ 0,2 0,±0,0 2 3 20,8 _ 0,3 8 7 6 3, _ 0,2 3,7,2 7,7±0,,2 Center flange omitted for one-section version 0,6 _ 0,2,+0,2 _ 6 0,2 2,6+0, Empfehlung Recommended für das Leiterplattenlayout PCB layout 2, 7,7 3,7 7,3 0, _,2 FEK0329-J,,8 max.,6 3,6 min. Abdeckplatte 0, max. 6,6±0,,8±0, 2,8±0, FEK087-Y FEK027-J 09 08/0
Herausgegeben von EPCOS AG Marketing Kommunikation, Postfach 80 7 09, 867 München, DEUTSCHLAND EPCOS AG 2000. Alle Rechte vorbehalten. Vervielfältigung, Veröffentlichung, Verbreitung und Verwertung dieser Broschüre und ihres Inhalts ohne ausdrückliche Genehmigung der EPCOS AG nicht gestattet. Mit den Angaben in dieser Broschüre werden die Bauelemente spezifiziert, keine Eigenschaften zugesichert. Bestellungen unterliegen den vom ZVEI empfohlenen Allgemeinen Lieferbedingungen für Erzeugnisse und Leistungen der Elektroindustrie, soweit nichts anderes vereinbart wird. Diese Broschüre ersetzt die vorige Ausgabe. Fragen über Technik, Preise und Liefermöglichkeiten richten Sie bitte an den Ihnen nächstgelegenen Vertrieb der EPCOS AG oder an unsere Vertriebsgesellschaften im Ausland. Bauelemente können aufgrund technischer Erfordernisse Gefahrstoffe enthalten. Auskünfte darüber bitten wir unter Angabe des betreffenden Typs ebenfalls über die zuständige Vertriebsgesellschaft einzuholen. Published by EPCOS AG Marketing Communications, P.O. Box 80 7 09, 867 Munich, GERMANY EPCOS AG 2000. All Rights Reserved. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS prior express consent is prohibited. The information contained in this brochure describes the type of component and shall not be considered as guaranteed characteristics. Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers Association), unless otherwise agreed. This brochure replaces the previous edition. For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or the international Representatives. Due to technical requirements components may contain dangerous substances. For information on the type in question please also contact one of our Sales Offices.