744771118 The Würth Elektronik 744771118 is a shielded drum core wirewound power inductor with 18 µH inductance, ±20% tolerance, and a rated current of 4 A.
Mfr Part #:

744771118

Available from 1 distributors
Mfr Name: Würth Elektronik
Würth Elektronik
The Würth Elektronik 744771118 is a shielded drum core wirewound power inductor with 18 µH inductance, ±20% tolerance, and a rated current of 4 A.
Total Stock: 400 pcs
$ Price Range: $1.18 - $2.26

744771118 Available from 1 distributor

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744771118 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
AEC-Q200
Automotive Grade
Current
Current Rating (Amps)
DC Resistance (DCR)
DC Resistance (Typical/Maximum @ @ 20 °C)
Frequency
Halogen Free
Height
Inductance
Industrial Grade
Lead Style
Length
MSL (Moisture Sensitivity Level)
Material
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Operating Voltage
Performance Rated Current
Rated Current (Temperature Rise)
Ratings
SVHC Present
Saturation Current (Typical @ |ΔL/L| < 10%)
Saturation Current (Typical @ |ΔL/L| < 30%)
Shielding
Storage Temperature
Tape & Reel
Tolerance
Type
Width

744771118 Description

Short technical summary and product information.

The Würth Elektronik 744771118 is a surface-mount shielded power inductor from the WE-PD series. It features a ferrite core and wirewound construction, providing an inductance of 18 µH with ±20% tolerance. The component is rated for a maximum DC current of 4 A (temperature rise ΔT=40 K) and a performance rated current of 6.7 A per IEC 62024-2-2020 Class C. Typical DC resistance is 24 mΩ with a maximum of 30 mΩ at 20 °C. The self-resonant frequency is 15 MHz typical, and the maximum operating voltage is 120 V DC.

 

The inductor is AEC-Q200 Grade 1 qualified, making it suitable for automotive applications. It is RoHS, REACH, and Halogen Free compliant, with a moisture sensitivity level of MSL 1. The operating temperature range is -40 °C to +125 °C. The component is packaged in a nonstandard case with dimensions 12.0 mm x 12.0 mm x 6.0 mm (max height).

744771118 Quick Information

Product Type: Shielded Power Inductor
Series: WE-PD
Canonical Name: Würth Elektronik WE-PD 744771118 SMT Shielded Power Inductor, 18 µH, ±20%, 4 A
Subcategory: Shielded Power Inductor

744771118 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 75
REACH Status: Conform or declared (EC 1907/2006)
Lead Free: Yes

744771118 Estimated Pricing

Qty Low High
1+ $2.26 $2.26
10+ $2.17 $2.17
50+ $1.96 $1.96
100+ $1.75 $1.75
250+ $1.61 $1.61
500+ $1.38 $1.38
1,000+ $1.18 $1.18

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

744771118 Features

  • Shielded ferrite core wirewound construction.
  • Rated current 4 A at 40 K rise.
  • AEC-Q200 Grade 1 automotive qualified.
  • RoHS, REACH, and Halogen Free compliant.
  • Operating temperature -40°C to +125°C.

744771118 Applications

  • DC-DC converter output filtering.
  • Power supply noise suppression.
  • Automotive electronic control units.
  • Industrial power management circuits.

744771118 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the inductance value and tolerance of the 744771118?

The inductance is 18 µH with a tolerance of ±20%, tested at 100 kHz/250 mV.

What is the rated current of this inductor?

The rated current (temperature rise) is 4 A maximum at ΔT=40 K. The performance rated current is 6.7 A per IEC 62024-2-2020 Class C.

What is the DC resistance (DCR) of the 744771118?

Typical DCR is 24 mΩ, maximum DCR is 30 mΩ at 20 °C.

What is the self-resonant frequency?

The typical self-resonant frequency is 15 MHz.

What is the package size and mounting type?

The inductor is surface mount in a nonstandard package with dimensions 12.0 mm x 12.0 mm x 6.0 mm (max height).

Is the 744771118 qualified for automotive applications?

Yes, it is AEC-Q200 Grade 1 qualified.

What is the operating temperature range?

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

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