B66417U0250K187 TDK

Ferrites and accessories EFD 20/10/7 Core and accessories Series/Type: B66417, B66418 Date: May 2017 EPCOS AG 2017. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS prior express consent is prohibited. EPCOS AG is a TDK Group Company. EFD 20/10/7 Core B66417 E core with flattened, lower center leg for especially flat transformer design For DC/DC converters Delivery mode: single units Magnetic characteristics (per set) 1 l/A= 1.52 mm l = 47 mm e 2 A = 31 mm e 2 A = 31 mm min 3 V = 1460 mm e Approx. weight 7.2 g/set Ungapped Material A value P Ordering code L e V nH W/set N49 910 +30/20% 1100 < 0.29 ( 50 mT, 500 kHz, 100 C) B66417G0000X149 N87 1200 +30/20% 1440 < 1.05 (200 mT, 100 kHz, 100 C) B66417G0000X187 N97 1250 +30/20% 1510 < 0.80 (200 mT, 100 kHz, 100 C) B66417G0000X197 Other A values/air gaps and materials available on request see Processing remarks on page 5. L Gapped (A values/air gaps examples) L Material A value g Ordering code L e approx. nH mm N87 100 10% 120 0.49 B66417U0100K187 160 10% 193 0.25 B66417U0160K187 250 10% 300 0.13 B66417U0250K187 330 10% 398 0.09 B66417U0330K187 400 12% 483 0.07 B66417U0400H187 450 15% 543 0.06 B66417U0450L187 The A value in the table applies to a core set comprising one ungapped core (dimension g = 0 mm) L and one gapped core (dimension g > 0 mm). Please read Cautions and warnings and 2 5/17 Important notes at the end of this document.