Spezifikation fr Freigabe / specification for release Kunde / customer : LF Artikelnummer / part number : 744312025 RoHS compliant Bezeichnung : SMD HOCHSTROMINDUKTIVITT WE-HC description : SMD POWER CHOKE WE-HC DATUM / DATE : 2005-04-18 A Mechanische Abmessungen / dimensions : A A 6,6 0,4 mm C D B 7,3 0,4 mm C 3,4 0,4 mm D 2,5 0,4 mm B Marking E E 4,3 0,4 mm F mm G mm H mm = Indication start of winding B Elektrische Eigenschaften / electrical properties : C Ltpad / soldering spec. : Eigenschaften / Testbedingungen / Wert / value Einheit / unit tol. mm properties test conditions Lerrlaufinduktivitt/ 100 kHz / 0,1V L 20% 0,25 H o initial inductance Nenn-Induktivitt / 100 kHz / 0,1V / 18A L 0,210 H typ. N rated inductance DC-Widerstand / 20 C R typ. 1,86 m DC typ 4,0 DC-resistance DC-Widerstand / 20 C R max. 2,50 m DC max DC-resistance Nennstrom / 2,25 3,5 I T = 50 K 18,0 A typ. DC rated current Sttigungsstrom / L/Lo = -30% I typ. 36,0 A sat saturation current Eigenres.-Frequenz / SRF 275,0 MHz ref. self.res.-frequency D Prfgerte / test equipment : E Testbedingungen / test conditions : HP 4274 A fr/for L und/and Q Luftfeuchtigkeit / humidity: 33% HP 34401 A fr/for I und/and R Umgebungstemperatur / temperature: + 25C DC DC F Werkstoffe & Zulassungen / material & approvals : G Eigenschaften / granted properties : Kernmaterial / core material: WE-Superflux 200 Arbeitstemperatur / operating temperature: -40C - +150C Draht / wire: Flatwire/ Flachdraht UL94-V0 2UEWF 155C Umgebungstemp. / ambient temperature: -40C - +100C It is recommended that the temperature of the part does not exceed 150C under worst case operating conditions. Kunde / customer Freigabe erteilt / general release: ME Version 6 2005-04-18 .................................................................................................................................................................. MST Version 5 2004-11-09 Datum / date Unterschrift / signature MST Version 4 2004-10-11 Wrth Elektronik AG Version 3 2003-06-11 AG Version 2 2003-03-12 JH Neugestaltung 2000-12-06 ............................................................................................................................................ Geprft / checked Kontrolliert / approved Name nderung / modification Datum / date Wrth Elektronik eiSos GmbH & Co. KG D-74638 Waldenburg Max-Eyth-Strasse 1 - 3 Germany Telefon (+49) (0) 7942 - 945 - 0 Telefax (+49) (0) 7942 - 945 - 400 Spezifikation fr Freigabe / specification for release Kunde / customer : LF Artikelnummer / part number : 744312025 RoHS compliant Bezeichnung : SMD HOCHSTROMINDUKTIVITT WE-HC description : SMD POWER CHOKE WE-HC DATUM / DATE : 2005-04-18 H Induktivittskurve / Inductance curve : Induktivitt vs Strom (typ.) Inductance vs Current (typ.) 0,30 0,25 0,20 0,15 0,10 0,05 0,00 0 5 10 15 20 25 30 35 40 45 Current (A) Kunde / customer Freigabe erteilt / general release: ME Version 6 2005-04-18 .................................................................................................................................................................. MST Version 5 2004-11-09 Datum / date Unterschrift / signature MST Version 4 2004-10-11 Wrth Elektronik AG Version 3 2003-06-11 AG Version 2 2003-03-12 ......................................................................................................................................... JH Neugestaltung 2000-12-06 Geprft / checked Kontrolliert / approved Name nderung / modification Datum / date Wrth Elektronik eiSos GmbH & Co. KG D-74638 Waldenburg Max-Eyth-Strasse 1 - 3 Germany Telefon (+49) (0) 7942 - 945 - 0 Telefax (+49) (0) 7942 - 945 - 400