ETD 54/28/19 Core B66395 27,8 _ 0,4 19,8+0,8 ■ In accordance with IEC 61185 ■ For SMPS transformers with optimum weight/performance ratio at small volume ■ ETD cores are supplied as single units Magnetic characteristics (per set) = 0,45 mm–1 = 127 mm = 280 mm2 = 280 mm2 = 35 600 mm3 19,3 _ 0,8 19,3 _ 0,8 Σl/A le Ae A min Ve 40,1+2,2 Approx. weight 180 g/set 54,5±1,3 FEK0065-W Ungapped µe A L1min P V nH W/set Ordering code Material AL value nH N27 4200 + 30/– 20 % 1510 3470 B66395-G-X127 < 6,66 (200 mT, 25 kHz, 100 °C) N87 4450 + 30/– 20 % 1600 3470 < 21,00 B66395-G-X187 (200 mT, 100 kHz, 100 °C) N97 1) 4600 + 30/– 20 % 1650 3470 < 18,00 B66395-G-X197 (200 mT, 100 kHz, 100 °C) Gapped µe mm A L value approx. nH Ordering code ** = 27 (N27) ** = 87 (N87) 0,20 ± 0,02 1,00 ± 0,05 1,50 ± 0,05 2,00 ± 0,05 1377 393 287 229 496 141 103 82 B66395-G200-X1** B66395-G1000-X1** B66395-G1500-X1** B66395-G2000-X1** Material g N27, N87 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). 1) Preliminary data 494 08/01 ETD 54/28/19 Core B66395 Calculation factors (for formulas, see “E cores: general information”, page 382) Calculation of saturation current Material Relationship between air gap – A L value K1 (25 °C) K2 (25 °C) K3 (25 °C) K4 (25 °C) K3 (100 °C) K4 (100 °C) N27 393 – 0,779 658 – 0,847 615 – 0,865 N87 393 – 0,779 630 – 0,796 603 – 0,873 Validity range: K1, K2: 0,10 mm < s < 3,50 mm K3, K4: 140 nH < A L < 1390 nH 495 08/01 ETD 54/28/19 Accessories B66396 Coil former Material: GFR polyterephthalate, UL 94 V-0, insulation class to IEC 60085: B66396A: F max. operating temperature 155 °C, color code black (Pocan B4235; [E 41613 (M)]; Bayer) B66396W: H max. operating temperature 180 °C, color code black (Rynite FR530; [E 69578 (M)]; E I DUPONT DE NEMOURS & CO INC) Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 °C, 2 s Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 °C, 3.5 s Winding: see data book 2001, Processing Notes, page 158 Yoke Material: Stainless spring steel (0.4 mm) Sections AN mm2 lN mm AR value µΩ Pins Ordering code 1 315.6 96 10.5 22 B66396A1022T001 B66396W1022T001 Yoke (ordering code per piece, 2 are required) B66396A2000 Coil former Yoke 19,8 min. 36,8 min. 4,5±0,5 46 max. 22 max. 61,4 max. 39,4 max. _ 0,2 59,7 +0,5 19,3±0,2 61,6 max. 39,15 min. ø1 11,7±0,3 45,72 ø1,6+0,15 11 x 5,08 = 55,88 FEK0362-Q Hole arrangement View in mounting direction ø3,4+0,15 fixing with withsheet-steel sheet-steelscrew screw DIN 7971-St 2.9 x 6.5-C) (for fixing DIN 7971-St 2,9 x 6,5-C) FEK0416-T EPCOS AG 2001. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS’ prior express consent is prohibited. 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. 496 08/01 Herausgegeben von EPCOS AG Marketing Kommunikation, Postfach 80 17 09, 81617 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 17 09, 81617 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. 1