74477003 The 74477003 is a 3.5 µH shielded power inductor from Würth Elektronik's WE-PD series. It features a rated current of 10.2 A and a maximum DC resistance of 11 mΩ.
Mfr Part #:

74477003

Available from 2 distributors
Mfr Name: Würth Elektronik
Würth Elektronik
The 74477003 is a 3.5 µH shielded power inductor from Würth Elektronik's WE-PD series. It features a rated current of 10.2 A and a maximum DC resistance of 11 mΩ.
✓ Total Stock: 85 pcs
$ Price Range: $1.34 - $2.40

74477003 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
45 pcs
45 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
40 pcs
40 pcs On Request 1 On Request On Request 13+ On Request On Request

74477003 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Current Rating (Amps)
DC Resistance (DCR)
Frequency
Halogen Free
Height
Inductance
Industrial Grade
Length
Material
Mounting Type
Operating Temperature
Ratings
SVHC Present
Shielding
Storage Temperature
Tape & Reel
Tolerance
Type
Width

74477003 Description

Short technical summary and product information.

The Würth Elektronik 74477003 is a shielded drum core wirewound inductor from the WE-PD series, designed for high-current power applications. It offers an inductance of 3.5 µH with a tolerance of ±30%. The component is rated for a continuous current of 10.2 A (IR,40K) and a performance rated current of 12 A (IRP,40K) per IEC 62024-2-2020. DC resistance is typically 8 mΩ, with a maximum of 11 mΩ. The self-resonant frequency is 37.5 MHz, and the operating voltage is up to 120 V DC.

 

This inductor features a shielded ferrite core to minimize electromagnetic interference. The package measures 12.0 mm x 12.0 mm with a maximum height of 8.0 mm, making it suitable for surface mount assembly. Operating temperature range is -40°C to +125°C, with storage conditions below 40°C and 75% RH. The component is AEC-Q200 Grade 1 qualified, ensuring reliability in automotive environments. It is RoHS, REACH, and Halogen Free compliant, with MSL level 1.

74477003 Quick Information

Product Type: Shielded Power Inductor
Series: WE-PD
Canonical Name: WE-PD SMT Shielded Power Inductor, 3.5 µH, 10.2 A, 11 mOhm
Subcategory: Shielded Wirewound Inductor

74477003 Compliance

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

74477003 Estimated Pricing

Qty Low High
1+ $2.40 $2.40
10+ $2.24 $2.24
50+ $2.08 $2.08
100+ $1.90 $1.90
250+ $1.70 $1.70
500+ $1.49 $1.49
1,000+ $1.34 $1.34

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

74477003 Features

  • Shielded ferrite core for EMI reduction.
  • Rated current up to 10.2 A (IR,40K).
  • Low DCR of 8 mΩ typical.
  • AEC-Q200 Grade 1 automotive qualified.
  • Self-resonant frequency of 37.5 MHz.

74477003 Applications

  • Ideal for DC-DC converters and power supplies.
  • Used in automotive electronics and engine control units.
  • Suitable for high-current filtering in portable devices.
  • Applicable in industrial power management systems.

74477003 FAQs

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

The inductance is 3.5 µH with a tolerance of ±30% (measured at 100 kHz, 250 mV).

What is the rated current of this inductor?

The rated current is 10.2 A max (IR,40K) per IEC 62024-2-2020, and the performance rated current is 12 A max (IRP,40K) with specific PCB copper conditions.

What is the DC resistance (DCR)?

Typical DCR is 8 mΩ, maximum is 11 mΩ (at 20°C).

What is the self-resonant frequency?

The self-resonant frequency is 37.5 MHz typical.

What are the dimensions of the package?

The package is 12.00 mm x 12.00 mm with a maximum height of 8.00 mm. It is a surface mount nonstandard package.

What is the operating temperature range?

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

Is this inductor AEC-Q200 qualified?

Yes, the component is AEC-Q200 Grade 1 qualified, with automotive approval released.

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