744045004 The 744045004 is a fixed inductor from Würth Elektronik with 4.7 µH inductance, ±20% tolerance, 1.24A rated current, and 150mΩ maximum DC resistance. It is a surface mount, unshielded, wirewound ferrite core inductor in a 1812 package.
Mfr Part #:

744045004

Available from 1 distributors
Mfr Name: Würth Elektronik
Würth Elektronik
The 744045004 is a fixed inductor from Würth Elektronik with 4.7 µH inductance, ±20% tolerance, 1.24A rated current, and 150mΩ maximum DC resistance. It is a surface mount, unshielded, wirewound ferrite core inductor in a 1812 package.
Total Stock: 200 pcs
$ Price Range: $0.54 - $0.85

744045004 Available from 1 distributor

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744045004 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Ambient Temperature
Current
Current Rating (Amps)
DC Resistance (DCR)
Frequency
Halogen Free
Height
Inductance
Length
Material
Mounting Type
Operating Temperature
Operating Voltage
Q @ Freq
Shielding
Storage Conditions
Storage Temperature
Supplier Device Package
Tape & Reel
Tolerance
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Width

744045004 Description

Short technical summary and product information.

The Würth Elektronik 744045004 is a fixed inductor belonging to the WE-LQ series of SMT power inductors. It features a drum core, wirewound construction with a ferrite core. The inductance is 4.7 µH with a tolerance of ±20% measured at 1 MHz/100 mV. It is rated for a maximum current of 1.24 A (ΔT=40 K) and has a typical saturation current of 2 A. The DC resistance is 150 mΩ maximum at 20°C. The self-resonant frequency is typically 45 MHz, and the Q factor is 36 at 1 MHz. The operating voltage is 120 V DC. The inductor is unshielded and designed for surface mount technology. It comes in a 1812 (4532 Metric) package with dimensions of 4.5 mm x 3.2 mm x 2.9 mm. The operating temperature range is -40°C to +125°C. It is RoHS, REACH, and Halogen Free compliant. This component is suitable for power supply applications, DC-DC converters, and other general electronic equipment requiring a compact, high-performance inductor.

744045004 Quick Information

Product Type: Fixed Inductor
Series: 744045004
Canonical Name: Würth Elektronik 744045004 4.7 µH Unshielded Wirewound SMD Inductor
Subcategory: Power Inductor

744045004 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 75
REACH Status: Compliant
Lead Free: Yes

744045004 Estimated Pricing

Qty Low High
1+ $0.85 $0.85
10+ $0.84 $0.84
50+ $0.78 $0.78
100+ $0.71 $0.71
250+ $0.65 $0.65
500+ $0.54 $0.54

Estimated market price range - modelled values for guidance only, not live distributor offers.

744045004 Features

  • 4.7 µH ±20% inductance at 1 MHz.
  • 1.24A rated current with 40K temperature rise.
  • 150 mΩ maximum DC resistance.
  • 45 MHz typical self-resonant frequency.
  • Surface mount 1812 (4532 Metric) package.

744045004 Applications

  • General purpose power supply filtering.
  • DC-DC converter output smoothing.
  • Energy storage in buck converters.
  • Low frequency RF choke applications.
  • Surface mount inductor for compact designs.

744045004 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the inductance of the 744045004?

The inductance is 4.7 µH at 1 MHz/100 mV with ±20% tolerance.

What is the rated current of the 744045004?

The rated current is 1.24 A maximum at a temperature rise of 40 K.

What is the DC resistance of the 744045004?

The DC resistance is 150 mΩ maximum at 20°C.

What is the self-resonant frequency of the 744045004?

The self-resonant frequency is typically 45 MHz.

What is the package/case of the 744045004?

The package is 1812 (4532 Metric) for surface mount.

What is the operating temperature range of the 744045004?

The operating temperature range is -40°C to +125°C.

Is the 744045004 shielded or unshielded?

The inductor is unshielded.

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