74477020 The 74477020 is a shielded drum core power inductor from Würth Elektronik's WE-PD series. It offers 100 µH inductance, 2.2 A rated current (ΔT=40K), and 140 mΩ max DCR.
Mfr Part #:

74477020

Available from 4 distributors
Mfr Name: Würth Elektronik
Würth Elektronik
The 74477020 is a shielded drum core power inductor from Würth Elektronik's WE-PD series. It offers 100 µH inductance, 2.2 A rated current (ΔT=40K), and 140 mΩ max DCR.
Total Stock: 1,877 pcs
$ Price Range: $1.33 - $2.40

74477020 Available from 4 distributors

Authorised
Non-Authorised

74477020 Specifications Quick View

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

74477020 Description

Short technical summary and product information.

The 74477020 is a shielded drum core power inductor from Würth Elektronik's WE-PD series. It is designed for surface mount applications and features a ferrite core. The inductor provides 100 µH inductance with ±20% tolerance, measured at 100 kHz and 250 mV. It has a rated current of 2.2 A maximum (ΔT=40 K) and a performance rated current of 2.85 A maximum per IEC 62024-2-2020. Saturation current is 2.4 A typical at 10% inductance drop and 3.1 A typical at 30% drop. The DC resistance is 117 mΩ typical and 140 mΩ maximum at 20°C. The self-resonant frequency is 5.2 MHz typical, and the maximum operating voltage is 120 V DC.

 

This inductor is qualified to AEC-Q200 Grade 1, making it suitable for automotive applications. It is shielded to reduce EMI and operates over an ambient temperature range of -40°C to +85°C (referring to IRP) and an overall operating temperature of -40°C to +125°C. The component is RoHS compliant, REACH conform, and halogen free.

 

The inductor measures 12.0 mm x 12.0 mm x 8.0 mm maximum and is supplied in a nonstandard SMD package. It is available in tape and reel packaging. The MSL is 1, indicating no moisture sensitivity handling restrictions.

74477020 Quick Information

Product Type: Fixed Inductor
Series: WE-PD
Canonical Name: WE-PD SMT Shielded Power Inductor 100 µH
Subcategory: Shielded Power Inductor

74477020 Compliance

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

74477020 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+ $1.34 $1.34
2,500+ $1.33 $1.33

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

74477020 Features

  • Shielded ferrite core construction reduces EMI.
  • 100 µH inductance with ±20% tolerance.
  • Rated current 2.2 A at 40K temperature rise.
  • AEC-Q200 qualified for automotive applications.
  • Surface mount package 12 x 12 mm.

74477020 Applications

  • Used in DC-DC converter input and output filters.
  • Suitable for automotive power management systems.
  • Ideal for high-frequency noise suppression.
  • Common in industrial power supply modules.
  • Applicable in LED lighting drivers.

74477020 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the inductance of the 74477020 inductor?

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

What is the rated current of the 74477020?

The rated current is 2.2 A maximum at ΔT = 40 K. The performance rated current is 2.85 A maximum per IEC 62024-2-2020.

What is the DC resistance of the 74477020?

The DC resistance is 117 mΩ typical and 140 mΩ maximum at 20°C.

What is the self-resonant frequency of the 74477020?

The self-resonant frequency is 5.2 MHz typical.

What is the package size of the 74477020?

The inductor measures 12.0 mm x 12.0 mm x 8.0 mm maximum in a nonstandard SMD package.

Is the 74477020 shielded?

Yes, it is a shielded drum core inductor to reduce electromagnetic interference.

Is the 74477020 qualified for automotive applications?

Yes, it is AEC-Q200 Grade 1 qualified.

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