Datasheet

ManualsBrandsWürth Elektronik ManualsInductorsWE-LQS SMT Power Inductor, 47uH, 560mA, 15MHz, 987mOhm

Dimensions: [mm]

4,0 ±0,2

3,7 ±0,2

0,95 ±0,1

4 ±0,2

3,3 ±0,2

1,2 max.

Scale - 7:1

Marking 470 (Inductance Code)

Product Marking:

Recommended Land Pattern: [mm]

3,6

1,51,55

Scale - 7:1

Schematic:

Properties Test conditions Value Unit Tol.

Inductance L 100 kHz/ 1 V 47 µH ±20%

Rated Current I

ΔT = 40 K 0.56 A max.

Saturation Current I

SAT

|ΔL/L| < 30 % 0.55 A typ.

DC Resistance R

@ 20 °C 987 mΩ ±20%

Self Resonant Frequency f

res

15 MHz typ.

Electrical Properties:

RoHS Approval Compliant [ 2011/65/EU&2015/863 ]

REACh Approval Conform or declared [ (EC)1907/2006 ]

Halogen Free Conform [ JEDEC JS709B ]

Halogen Free Conform [ IEC 61249-2-21 ]

Component Qualification AEC-Q200 Grade 1

Certification:

It is recommended that the temperature of the component does not exceed +125 °C under worst

case conditions

Ambient Temperature (referring

to I

)

-40 up to +85 °C

Operating Temperature -40 up to +125 °C

Storage Conditions (in original

packaging)

< 40 °C ; < 75 % RH

Moisture Sensitivity Level (MSL) 1

Test conditions of Electrical Properties: +20 °C, 33 % RH if not specified differently

General Information:

Würth Elektronik eiSos GmbH & Co. KG

EMC & Inductive Solutions

Max-Eyth-Str. 1

74638 Waldenburg

Germany

Tel. +49 (0) 79 42 945 - 0

www.we-online.com

eiSos@we-online.com

CHECKED REVISION DATE (YYYY-MM-DD) GENERAL TOLERANCE PROJECTION

METHOD

ChriB 001.003 2019-11-26 DIN ISO 2768-1m

DESCRIPTION

WE-LQS SMT Power Inductor

ORDER CODE

74404041470

SIZE/TYPE BUSINESS UNIT STATUS PAGE

4012 eiSos Valid 1/6

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 Würth 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.. Würth 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.

Summary of content (6 pages)

PAGE 1
Dimensions: [mm] Recommended Land Pattern: [mm] Electrical Properties: 3,6 3,3 ±0,2 Properties Test conditions Value Unit Tol. 47 µH ±20% ΔT = 40 K 0.56 A max. |ΔL/L| < 30 % Inductance L 100 kHz/ 1 V Rated Current IR Saturation Current ISAT 0.55 A typ. DC Resistance RDC @ 20 °C 987 mΩ ±20% Self Resonant Frequency fres 15 MHz typ. Certification: 0,95 ±0,1 4 ±0,2 1,2 max.
PAGE 2
Typical Inductance vs. Current Characteristics: Typical Impedance Characteristics: 50.0 100000 45.0 40.0 10000 Impedance [Ω] Inductance [µH] 35.0 30.0 25.0 1000 100 20.0 15.0 10 10.0 5.0 1 0.1 0.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 Current [A] 0.7 0.8 0.9 1 10 100 Frequency [MHz] 1.0 Z CHECKED REVISION DATE (YYYY-MM-DD) GENERAL TOLERANCE ChriB 001.003 2019-11-26 DIN ISO 2768-1m PROJECTION METHOD DESCRIPTION WE-LQS SMT Power Inductor Würth Elektronik eiSos GmbH & Co.
PAGE 3
Packaging Specification - Tape and Reel: [mm] P0 A W3 K0 P2 T W1 close to center E1 D0 B0 A D W E2 C Top Cover Tape A0 A N F B P1 W2 T1 T2 End Start Feeding direction detail B Carrier Tape Cover Tape B Cover Tape Chip Cavity Sprocket Hole No Component min. 160mm Components No Component min.100mm Embossment Cover Tape min. 400mm packaging is reffered to the international standard IEC 60286-3:2013 tolerance value A0 typ. 4,40 B0 typ. 4,40 W +0,3/ -0,1 12,00 T ref.
PAGE 4
Classification Reflow Profile for SMT components: Classification Reflow Soldering Profile: Profile Feature Tp tp Max. Ramp Up Rate Max. Ramp Down Rate TL Temperature Ts max Ts min Ts min 150 °C Preheat Temperature Max Ts max 200 °C Preheat Time ts from Ts min to Ts max ts Ramp-up Rate (TL to TP) 60 - 120 seconds 3 °C/ second max.
PAGE 5
Cautions and Warnings: Potting: The following conditions apply to all goods within the product series of WE-LQS of Würth Elektronik eiSos GmbH & Co. KG: • If the product is potted in the customer application, the potting material may shrink or expand during and after hardening. Shrinking could lead to an incomplete seal, allowing contaminants into the core. Expansion could damage the components. We recommend a manual inspection after potting to avoid these effects.
PAGE 6
Important Notes 6. Product Life Cycle The following conditions apply to all goods within the product range of Würth Elektronik eiSos GmbH & Co. KG: Due to technical progress and economical evaluation we also reserve the right to discontinue production and delivery of products. As a standard reporting procedure of the Product Termination Notification (PTN) according to the JEDEC-Standard we will inform at an early stage about inevitable product discontinuance.