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
Automotive Grade
Current
Current Rating (Amps)
DC Resistance (DCR)
Frequency
Halogen Free
Height
Inductance
Length
Material
Mounting Type
Operating Temperature
Operating Voltage
Ratings
Shielding
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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