7440329470

Power Inductor (SMD), 47 µH, 170 mA, Unshielded, 250 mA, WE-LQ

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Manufacturer: WURTH ELEKTRONIK
Product type: SMD Power Inductors

Delivery and price
Units per pack	20000
Price	0.395 €
Current stock	10+
Lead time	30 days

Datasheet

~~C~~ **Spezifikation für Freigabe / s** ~~e~~ **pecification for release** 

|**A** **Mechanische Abmessungen / dimensions:**||**Typ M**||
|---|---|---|---|
|~~a~~<br>=<br>[ok<br>mm:|A|**3,2 ± 0,3**|mm|
||B|**2,5 ± 0,3**|mm|
||C|**1,55 ± 0,15**|mm|
||D|**2,4±0,24**|mm|
||E|**1,2 ref**|mm|
||F|**1,3 typ**|mm|
||G|**3,8 ref**|mm|
||H|**2,8 ref**|mm|



@@FRM 1@@ 

Marking = Inductance code 

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**----- Start of picture text -----**<br>
B Elektrische Eigenschaften  /  electrical properties: Ce C  Lötpad  /  soldering spec.:<br>Eigenschaften /  Testbedingungen /<br>Wert / value Einheit / unit tol. [mm]<br>ee Induktivität /properties test conditions es Ge es ee G<br>inductance 1 MHz / 0,1V L 47,00 µH ± 10%<br>es es es es Ge<br>Güte Q/<br> Q ref.<br>Q factor<br>a es ee es Gn H<br>DC-Widerstand /<br>DC-resistance @ 20°C RDC 1,690 max.<br>ee ee ee Gn ete<br>Nennstrom /rated current T= 40 K IDC 0,17 A max.<br>ee ee es es Gs Gn<br>Sättigungsstrom /saturation current | L/L|<10%  Isat 0,25 A typ. 1,4 ref 1,0 ref. 1,4 ref<br>es ee es ees es Ge<br>Eigenres.-Frequenz /<br>es self-res.-fequency es SRF ee Ge 15,00 Ge MHz typ.<br>**----- End of picture text -----**<br>


~~|~~ **D  Prüfgeräte  /  test equipment: E  Testbedingungen / test conditions: HP 4274 A** für/for L und/and Q Luftfeuchtigkeit / humidity: 33% **HP 34401 A** für/for RDC  und IDC Umgebungstemperatur / temperature: +20°C 

## ~~eee~~ **F Werkstoffe & Zulassungen / material & approvals: G Eigenschaften / general specifications:** 

Betriebstemp. / operating temperature:     -40°C - +  125°C Umgebungstemp. / ambient temperature:  -40°C - +  85°C It is recommended that the temperature of the part does 

Basismaterial / base material: Ferrit Betriebstemp. / operating temperature:     -40°C - +  125°C Draht  / wire: Class F Umgebungstemp. / ambient temperature:  -40°C - +  85°C Pin / Terminal Sn/Cu - 99,3/0,7% It is recommended that the temperature of the part does not exceed 125°C under worst case operating conditions. **Kunde / customer** Freigabe erteilt / general release: .................................................................................. .................................................................................. Datum / date Unterschrift / signature **Würth Elektronik** .................................................................................. .................................................................................. ~~ST~~ Geprüft / checked Kontrolliert / approved Name **Änderung / modification** Datum / date ~~===~~ Würth 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 http://www.we-online.com 

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**Spezifikation für Freigabe / specification for release** 

Kunde / customer _:_ Artikelnummer / part number _:_ **7440329470 LF** Bezeichnung : **SMD HF-Drossel WE-LQ** = @VFREe _**RoHS compliant**_ gh/ description : **SMD HF-CHOKE WE-LQ** WORTH 

**DATUM / DATE : 2004-10-11** 

**H Induktivitätskurve / Inductance curve :** 

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**----- Start of picture text -----**<br>
Induktivität vs Strom (typ.) /<br>Inductance vs Current (typ.)<br>**----- End of picture text -----**<br>


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50,00<br>45,00<br>40,00<br>35,00<br>30,00<br>25,00<br>20,00<br>15,00<br>10,00<br>5,00<br>0,00<br>0,00 0,10 0,20 0,30 0,40 0,50 0,60 0,70<br>Current (A)<br>Kunde / customer<br>Freigabe erteilt / general release:<br>.................................................................................. ..................................................................................<br>Datum / date Unterschrift / signature<br>Würth Elektronik<br>.................................................................................. ..................................................................................<br>OT Geprüft / checked Kontrolliert / approved Name Änderung / modification Datum / date<br>===<br>Würth Elektronik eiSos GmbH & Co.KG<br>D-74638 Waldenburg · Max-Eyth-Strasse 1 - 3 · Germany · Telefon (+49) (0) 7942 - 945 - 0 · Telefax (+49) (0) 7942 - 945 - 400<br> http://www.we-online.com<br>L (µH)<br>**----- End of picture text -----**<br>


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**Spezifikation für Freigabe / specification for release** 

## Kunde / customer _:_ 

**7440329470** 

Artikelnummer / part number _:_ 

Bezeichnung : **SMD HF-Drossel WE-LQ** description : **SMD HF-CHOKE WE-LQ** 

**I  Rollenspezifikation / tape and reel specification:** 

**LF** | @IEREE -p/E—- _**RoHS compliant**_ —-Tw 

|**_RoHScompliant_**|**_compliant_**<br>—-TwTw<br>O-<br>WURTH ELEKTRONIK|
|---|---|
||**DATUM / DATE : 2004-10-11**|
|Gurtspezifikation / Tape specification:||
|A|**4,00 ± 0,1**<br>mm|
|B|**4,00 ± 0,1**<br>mm|



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**----- Start of picture text -----**<br>
a a b Po y e pee d<br>Ø c<br>**----- End of picture text -----**<br>


|Rollenspezifikation / Reel specification:|Rollenspezifikation / Reel specification:|Rollenspezifikation / Reel specification:|
|---|---|---|
|a|**178 ± 0,5**|mm|
|b|**20,20 ± 0,1**|mm|
|c|**,,**<br>**+ 0,5**<br>**-  1,0**<br>**13,00**|mm|
|d|**1,0**<br>**50,0 ± 1,0**<br>**3,00**|mm|



150° The force for tearing off cover tape is 20 to 70 grams in arrow direction feeding direction > **Kunde / customer** Freigabe erteilt / general release: .................................................................................. .................................................................................. Datum / date Unterschrift / signature ~~ee~~ **Würth Elektronik** .................................................................................. .................................................................................. Geprüft / checked Kontrolliert / approved Name **Änderung / modification** Datum / date ~~OT~~ This electronic component is designed and developed with the intention for use in general electronics equipments. Before incorporating the components into any equipments in the field such as aerospace, aviation, nuclear control, submarine, transportation, (automotive control, train control, ship control), transportation signal, disaster prevention, medical, public information network etc. where higher safety and reliability are especially required or if there is possibility of direct damage or injury to human body. In addition, even electronic component in general electronic equipments, when used in electrical circuits that require high safety, reliability functions or performance, the sufficient reliability evaluation-check for the safety must be performed before use. It is essential to give consideration when to install a protective circuit at the design stage. 

Würth 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 http://www.we-online.com 

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Updated at February 9, 2023

Würth Elektronik is a globally recognized leader in the manufacture of electronic and electromechanical components, renowned for its exacting quality standards and reliable supply chain. Supported by an extensive international network of manufacturing facilities, the company provides robust, high-performance solutions designed to add value and durability to demanding engineering projects across a wide range of industries. Our comprehensive selection of Würth Elektronik components is strongly driven by their industry-leading passive technologies. The portfolio features an exceptional variety of magnetic components, highlighted by thousands of power and RF inductors engineered for maximum efficiency. This is complemented by a massive array of advanced capacitance solutions, including aluminium electrolytic, film, and polymer capacitors, built to satisfy the rigorous requirements of modern power management and high-frequency circuit designs. Beyond foundational passives, the offering encompasses critical solutions for signal integrity and circuit protection, such as common mode chokes, EMI shielding materials, and transient voltage suppressors like TVS diodes and varistors. Engineers will also find a highly reliable selection of electromechanical components, notably wire-to-board and pluggable terminal blocks, alongside specialized additions like wireless communication modules and thermal interface materials to complete complex system architectures.

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