74477820 The 74477820 is a 100µH shielded wirewound power inductor from Würth Elektronik's WE-PD series. It features a ferrite core, 620mA rated current, and 790mOhm maximum DC resistance.
Mfr Part #:

74477820

Available from 2 distributors
Mfr Name: Würth Elektronik
Würth Elektronik
The 74477820 is a 100µH shielded wirewound power inductor from Würth Elektronik's WE-PD series. It features a ferrite core, 620mA rated current, and 790mOhm maximum DC resistance.
Total Stock: 131 pcs
$ Price Range: $1.48 - $2.51

74477820 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
100 pcs
100 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
31 pcs
31 pcs On Request 1 On Request On Request 17+ On Request On Request

74477820 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
AEC-Q200
Ambient Temperature Range (referring to IR)
Automotive Grade
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 (ΔT=40K)
Ratings
Saturation Current (Typical @ |ΔL/L| < 30%)
Shielding
Storage Humidity Range
Storage Temperature Range
Tape & Reel
Tolerance
Type
Width

74477820 Description

Short technical summary and product information.

The Würth Elektronik 74477820 is a shielded wirewound power inductor from the WE-PD series, designed for surface mount applications. It offers an inductance of 100 µH with ±20% tolerance, measured at 1 kHz and 250 mV. The inductor is rated for a continuous current of 620 mA (ΔT=40K) and can handle a performance rated current of 0.91 A per IEC 62024-2 Class C. Saturation current is 0.76 A typical at 10% inductance drop and 0.95 A typical at 30% drop.

 

DC resistance is 580 mΩ typical and 790 mΩ maximum at 20°C. The self-resonant frequency is 9 MHz typical, and the maximum operating voltage is 120 V. The component is built with a ferrite core and is fully shielded, making it suitable for noise-sensitive applications.

 

The inductor is housed in a nonstandard 7332 package measuring 7.3 mm x 7.3 mm x 3.2 mm, suitable for surface mount assembly. It operates over a temperature range of -40°C to +125°C and is AEC-Q200 Grade 1 qualified, ensuring reliability in automotive and industrial environments. The component is RoHS, REACH, and Halogen Free compliant.

74477820 Quick Information

Product Type: Shielded Power Inductor
Series: 7332
Canonical Name: WE-PD SMT Shielded Power Inductor 100µH ±20% 620mA
Subcategory: Fixed Inductors

74477820 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: Compliant

74477820 Estimated Pricing

Qty Low High
1+ $2.51 $2.51
10+ $2.24 $2.24
50+ $2.08 $2.08
100+ $2.00 $2.00
500+ $1.92 $1.92
1,000+ $1.48 $1.48

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

74477820 Features

  • Shielded ferrite core construction.
  • Rated for 620 mA continuous current.
  • AEC-Q200 Grade 1 qualified.
  • Low 580 mOhm typical DCR.
  • Surface mount 7332 package.

74477820 Applications

  • Used in automotive power supplies.
  • Ideal for DC-DC converter filtering.
  • Suitable for EMI suppression circuits.
  • Applicable in industrial control systems.

74477820 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the inductance of the 74477820?

The inductance is 100 µH at 1 kHz/250 mV with ±20% tolerance.

What is the rated current of the 74477820?

The rated current is 0.62 A maximum at ΔT=40K (IEC 62024-2-2020).

What is the DC resistance of the 74477820?

The DC resistance is 580 mΩ typical and 790 mΩ maximum at 20°C.

What is the self-resonant frequency of the 74477820?

The self-resonant frequency is 9 MHz typical.

What is the package size of the 74477820?

The inductor is in a nonstandard 7332 package (7.3 mm x 7.3 mm x 3.2 mm) for surface mount.

What is the saturation current of the 74477820?

The saturation current is 0.76 A typical at 10% inductance drop and 0.95 A typical at 30% drop.

What is the operating temperature range of the 74477820?

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

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