74477730 Fixed inductor, 1 mH, ±20% tolerance, 200 mA rated current, 6 Ohm max DCR, shielded, surface mount, AEC-Q200 qualified.
Mfr Part #:

74477730

Available from 3 distributors
Mfr Name: Würth Elektronik
Würth Elektronik
Fixed inductor, 1 mH, ±20% tolerance, 200 mA rated current, 6 Ohm max DCR, shielded, surface mount, AEC-Q200 qualified.
Total Stock: 4,093 pcs
$ Price Range: $1.66 - $2.37

74477730 Available from 3 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
3,978 pcs
3978 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
95 pcs
95 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
20 pcs
20 pcs On Request 1 On Request On Request On Request On Request On Request

74477730 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Ambient Temperature (Rated Current)
Automotive Grade
Current
Current Rating (Amps)
DC Resistance (DCR)
DC Resistance (Typical/Maximum)
Frequency
Halogen Free
Height
Inductance
Length
Material
Mounting Type
Operating Temperature
Operating Voltage
Rated Current (Maximum @ IEC 62024-2-2020, Class C)
Ratings
Saturation Current (Typical @ |ΔL/L| < 30%)
Shielding
Storage Temperature
Supplier Device Package
Tape & Reel
Termination Style
Tolerance
Type
Width

74477730 Description

Short technical summary and product information.

The Würth Elektronik 74477730 is a WE-PD series SMT shielded power inductor with a drum core wirewound construction. It offers an inductance of 1000 µH (1 mH) with ±20% tolerance. The rated current is 0.2 A based on a 40 K temperature rise, with a maximum DC resistance of 6 Ω. Two saturation current ratings are provided: 0.25 A typical at 10% inductance drop and 0.31 A typical at 30% drop. The self-resonant frequency is 2.2 MHz typical.

 

This inductor is shielded for reduced EMI and comes in a nonstandard 7345 package (7.3 mm x 7.3 mm x 4.5 mm). It is qualified to AEC-Q200 Grade 1 and operates over -40°C to +125°C. The component is RoHS compliant, REACH conform, and halogen-free. Performance rated current per IEC 62024-2-2020 is 0.37 A max.

 

Ideal for power supply filtering, DC/DC converter input/output, and automotive electronics where low current and high inductance are needed. The ferrite core material ensures stable performance across temperature.

74477730 Quick Information

Product Type: Fixed Inductor
Series: WE-PD
Canonical Name: WE-PD SMT Shielded Power Inductor 74477730
Subcategory: Fixed Inductors

74477730 Compliance

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

74477730 Estimated Pricing

Qty Low High
1+ $2.37 $2.37
10+ $2.11 $2.11
50+ $1.96 $1.96
100+ $1.89 $1.89
500+ $1.81 $1.81
1,000+ $1.66 $1.66

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

74477730 Features

  • Shielded drum core wirewound construction.
  • 1 mH inductance with ±20% tolerance.
  • Rated current up to 0.2 A (ΔT=40K).
  • Maximum DCR of 6 Ω.
  • AEC-Q200 Grade 1 qualified.

74477730 Applications

  • Used in power supply filtering circuits.
  • Suitable for automotive electronics.
  • Ideal for DC/DC converter applications.
  • EMI suppression in low current circuits.

74477730 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the inductance value of the 74477730?

The inductance is 1000 µH (1 mH) at 1 kHz/250 mV with ±20% tolerance.

What is the rated current of this inductor?

The rated current based on a 40 K temperature rise is 0.2 A maximum. The performance rated current per IEC 62024-2-2020 is 0.37 A maximum.

What is the DC resistance (DCR) of the 74477730?

The maximum DCR is 6 Ω, with a typical value of 3.27 Ω at 20°C.

What is the self-resonant frequency (SRF) of this inductor?

The self-resonant frequency is 2.2 MHz typical.

What package size does the 74477730 come in?

It is supplied in a nonstandard 7345 package with dimensions 7.3 mm x 7.3 mm x 4.5 mm (height).

Is the 74477730 qualified for automotive applications?

Yes, it is AEC-Q200 Grade 1 qualified.

What is the operating temperature range of the 74477730?

It operates from -40°C to +125°C. The ambient temperature range for rated current is -40°C to +85°C.

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