74477720 Fixed inductor, 100µH, ±20%, shielded, wirewound, ferrite core, surface mount, AEC-Q200 qualified.
Mfr Part #:

74477720

Available from 2 distributors
Mfr Name: Würth Elektronik
Würth Elektronik
Fixed inductor, 100µH, ±20%, shielded, wirewound, ferrite core, surface mount, AEC-Q200 qualified.
Total Stock: 356 pcs
$ Price Range: $1.51 - $2.16

74477720 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
208 pcs
208 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
148 pcs
148 pcs On Request 1 On Request On Request On Request On Request On Request

74477720 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Ambient Temperature Range
Automotive Grade
Current
Current Rating (Amps)
DC Resistance (DCR)
Frequency
Halogen Free
Height
Inductance
Length
Material
Mounting Type
Operating Temperature
Operating Voltage
Performance Rated Current
Ratings
Saturation Current (Typical @ |ΔL/L| < 30%)
Shielding
Storage Conditions
Supplier Device Package
Tape & Reel
Termination Style
Tolerance
Type
Width

74477720 Description

Short technical summary and product information.

The 74477720 is a 100µH shielded power inductor from Würth Elektronik's WE-PD series. It features a ferrite core and wirewound construction, providing excellent inductance stability and low electromagnetic interference. The inductor is rated for a maximum current of 790mA with a temperature rise of 40K (IEC 62024-2-2020) and a performance rated current of 1.3A under the same conditions. Saturation current is 0.75A typical at 10% inductance drop and 0.93A at 30% drop. DC resistance is 290mΩ typical and 610mΩ maximum. Self-resonant frequency is 7.5MHz, and operating voltage is up to 120V.

 

This component is designed for surface mount assembly in a 7345 nonstandard package (7.3mm x 7.3mm x 4.5mm max). It operates over an ambient temperature range of -40°C to +85°C and an extended operating range of -40°C to +125°C. It is qualified to AEC-Q200 Grade 1, making it suitable for automotive applications. The inductor is RoHS, REACH, and Halogen Free compliant, and has an MSL rating of 1 (unlimited).

 

Typical applications include power supply filtering, DC-DC converters, EMI suppression, and general power management in automotive, industrial, and consumer electronics. The shielded construction minimizes radiated noise, making it ideal for noise-sensitive circuits.

74477720 Quick Information

Product Type: Fixed Inductor
Series: WE-PD
Canonical Name: 74477720 - Würth Elektronik WE-PD SMT Shielded Power Inductor, 100µH, 790mA, Shielded
Subcategory: Wirewound Shielded Inductor

74477720 Compliance

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

74477720 Estimated Pricing

Qty Low High
1+ $2.16 $2.16
10+ $1.97 $1.97
25+ $1.95 $1.95
50+ $1.88 $1.88
100+ $1.84 $1.84
250+ $1.83 $1.83
500+ $1.80 $1.80
1,000+ $1.52 $1.52
2,000+ $1.51 $1.51

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

74477720 Features

  • Shielded ferrite core wirewound construction.
  • Inductance 100µH with ±20% tolerance.
  • Rated current 790mA at 40K temperature rise.
  • DC resistance 610mOhm maximum.
  • AEC-Q200 Grade 1 qualified.

74477720 Applications

  • Power supply filtering in automotive ECUs.
  • DC-DC converter output inductor.
  • EMI suppression in industrial electronics.
  • General purpose power management circuits.

74477720 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the inductance value of 74477720?

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

What is the rated current for this inductor?

The rated current is 790mA maximum at a temperature rise of 40K per IEC 62024-2-2020.

What is the DC resistance?

DC resistance is 290mΩ typical and 610mΩ maximum at 20°C.

What is the self-resonant frequency?

The self-resonant frequency is 7.5 MHz typical.

What is the package size of 74477720?

The package is a nonstandard SMD size 7345 with dimensions 7.3mm x 7.3mm x 4.5mm max.

Is this inductor 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, with an ambient range of -40°C to +85°C.

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