Dimensions: mm Recommended Land Pattern: mm Electrical Properties: Properties Test conditions Value Unit Tol. Inductance L 1 MHz/ 100 mV 3.9 H 20% I Rated Current T = 40 K 1.32 A max. 5,4 ref. R A A I Saturation Current L/L < 10 % 2.5 A typ. SAT DC Resistance R 20 C 0.14 max. DC f Self Resonant Frequency 54 MHz typ. res Q-Factor Q 1 MHz 40 typ. 1,6 ref. 3,2 0,3 Operating Voltage V DC 120 V max. 1,6 ref. 2 ref. 1,3 ref. 1,4 ref. Certification: RoHS Approval Compliant 2011/65/EU&2015/863 3,6 0,3 REACh Approval Conform or declared (EC)1907/2006 Scale - 5:1 Halogen Free Conform JEDEC JS709B Halogen Free Conform IEC 61249-2-21 Schematic: 4,5 0,3 General Properties: It is recommended that the temperature of the component does not exceed +125 C under worst case conditions sectional drawing A-A Ambient Temperature (referring -40 up to +85 C to I ) R Operating Temperature -40 up to +125 C Storage Conditions (in original < 40 C < 75 % RH packaging) Moisture Sensitivity Level (MSL) 1 Scale - 5:1 Product Marking: Marking 3R9 (Inductance Code) CHECKED REVISION DATE (YYYY-MM-DD) GENERAL TOLERANCE PROJECTION METHOD SiBo 004.003 2021-09-02 DIN ISO 2768-1m DESCRIPTION WE-LQ SMT Power Inductor Wrth Elektronik eiSos GmbH & Co. KG ORDER CODE EMC & Inductive Solutions Max-Eyth-Str. 1 7440450039 74638 Waldenburg Germany SIZE/TYPE BUSINESS UNIT STATUS PAGE Tel. +49 (0) 79 42 945 - 0 www.we-online.com 1812 eiSos Valid 1/6 eiSos we-online.com This electronic component has been designed and developed for usage in general electronic equipment only. This product is not authorized for use in equipment where a higher safety standard and reliability standard is especially required or where a failure of the product is reasonably expected to cause severe personal injury or death, unless the parties have executed an agreement specifically governing such use. Moreover Wrth Elektronik eiSos GmbH & Co KG products are neither designed nor intended for use in areas such as military, aerospace, aviation, nuclear control, submarine, transportation (automotive control, train control, ship control), transportation signal, disaster prevention, medical, public information network etc.. Wrth Elektronik eiSos GmbH & Co KG must be informed about the intent of such usage before the design-in stage. In addition, sufficient reliability evaluation checks for safety must be performed on every electronic component which is used in electrical circuits that require high safety and reliability functions or performance. 2,6 0,3 3,6 ref.Typical Inductance vs. Current Characteristics: Typical Impedance Characteristics: 4.5 10000 4.0 3.5 1000 3.0 2.5 100 2.0 1.5 10 1.0 0.5 1 0.1 1 10 100 1000 0.0 Frequency MHz 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Current A Z CHECKED REVISION DATE (YYYY-MM-DD) GENERAL TOLERANCE PROJECTION METHOD SiBo 004.003 2021-09-02 DIN ISO 2768-1m DESCRIPTION WE-LQ SMT Power Inductor Wrth Elektronik eiSos GmbH & Co. KG ORDER CODE EMC & Inductive Solutions Max-Eyth-Str. 1 7440450039 74638 Waldenburg Germany SIZE/TYPE BUSINESS UNIT STATUS PAGE Tel. +49 (0) 79 42 945 - 0 www.we-online.com 1812 eiSos Valid 2/6 eiSos we-online.com This electronic component has been designed and developed for usage in general electronic equipment only. This product is not authorized for use in equipment where a higher safety standard and reliability standard is especially required or where a failure of the product is reasonably expected to cause severe personal injury or death, unless the parties have executed an agreement specifically governing such use. Moreover Wrth Elektronik eiSos GmbH & Co KG products are neither designed nor intended for use in areas such as military, aerospace, aviation, nuclear control, submarine, transportation (automotive control, train control, ship control), transportation signal, disaster prevention, medical, public information network etc.. Wrth Elektronik eiSos GmbH & Co KG must be informed about the intent of such usage before the design-in stage. In addition, sufficient reliability evaluation checks for safety must be performed on every electronic component which is used in electrical circuits that require high safety and reliability functions or performance. Inductance H Impedance