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744308040 Fixed inductor from Würth Elektronik, 400nH inductance, 25A rated current, 0.37mOhm DCR. Shielded SMD package with drum core and flat wire construction.
Mfr Part #:

744308040

Available from 2 distributors
Mfr Name: Würth Elektronik
Würth Elektronik
Fixed inductor from Würth Elektronik, 400nH inductance, 25A rated current, 0.37mOhm DCR. Shielded SMD package with drum core and flat wire construction.
✓ Total Stock: 624 pcs

744308040 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Braun Electronic Components ✓
Non-Authorised Inventory information
401 pcs
On Request
401 pcs On Request 1 On Request On Request On Request On Request On Request
MW.FEP S.p.A. ✓
Non-Authorised Inventory information
223 pcs
On Request
223 pcs On Request 1 On Request On Request On Request On Request On Request
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744308040 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Current Rating (Amps)
DC Resistance (DCR)
Frequency
Halogen Free
Height
Inductance
Lead Style
Length
Material
Mounting Type
Operating Temperature
SVHC Present
Shielding
Termination Style
Tolerance
Type
Width
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744308040 Description

Short technical summary and product information.

The Würth Elektronik 744308040 is a high current shielded wirewound inductor from the WE-HCM series. It features a nominal inductance of 400 nH (tested at 100 kHz, 10 mA) with ±20% tolerance. The rated current is 25 A maximum at a 40 K temperature rise, with a performance rated current of 54.3 A per IEC 62024-2-2020. Saturation current is 23.8 A typical at 10% inductance drop and 28.3 A at 30% drop. DC resistance is 0.37 mΩ ±7%. Self-resonant frequency is 25 MHz typical. The inductor uses a manganese zinc ferrite (MnZn) drum core with flat wire winding, fully shielded. It is surface mountable in a nonstandard package measuring 10.10 mm x 7.00 mm x 7.50 mm. Operating temperature range is -40°C to +125°C. The component is RoHS, REACH, and halogen-free compliant, and qualified to AEC-Q200 Grade 1 for automotive applications. Typical applications include DC-DC converters, power supplies, and high current filtering in automotive and industrial electronics.

744308040 Quick Information

Product Type: Fixed Inductor
Canonical Name: WE-HCM SMT High Current Flat Wire Inductor
Subcategory: High Current Wirewound Inductor

744308040 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: Conform or declared [(EC)1907/2006]

744308040 Features

  • High current rating of 25A maximum.
  • Shielded drum core with flat wire winding.
  • AEC-Q200 Grade 1 automotive qualified.
  • Low DC resistance of 0.37 milliohms.
  • Operating temperature range -40°C to 125°C.

744308040 Applications

  • Used in automotive DC-DC converters.
  • Ideal for high current power supplies.
  • Suitable for EMI filtering circuits.
  • Designed for industrial power applications.

744308040 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the inductance value of the 744308040?

400 nH at 100 kHz, 10 mA, with ±20% tolerance.

What is the rated current of this inductor?

25 A maximum at 40 K temperature rise, with a performance rated current of 54.3 A per IEC 62024-2-2020.

What is the DC resistance?

0.37 mΩ ±7% at 20°C.

What is the self-resonant frequency?

25 MHz typical.

What is the package size and mounting type?

Surface mount, nonstandard package, dimensions 10.10 mm x 7.00 mm x 7.50 mm.

Is this inductor automotive qualified?

Yes, AEC-Q200 Grade 1 qualified.

What is the operating temperature range?

-40°C to +125°C.

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