DR74-3R3-R DR74-3R3-R is a shielded drum core wirewound fixed inductor from Eaton, offering 3.3µH inductance and 3.94A rated current. It has 18.3mΩ DCR and operates from -40°C to 125°C.
Mfr Part #:

DR74-3R3-R

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
DR74-3R3-R is a shielded drum core wirewound fixed inductor from Eaton, offering 3.3µH inductance and 3.94A rated current. It has 18.3mΩ DCR and operates from -40°C to 125°C.
Total Stock: 300 pcs
$ Price Range: $0.57 - $0.59

DR74-3R3-R Available from 1 distributor

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DR74-3R3-R Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Current Rating (Amps)
DC Resistance (DCR)
Height
Inductance
Length
Material
Mounting Type
Operating Temperature
Shielding
Tape & Reel
Tolerance
Type
Width

DR74-3R3-R Description

Short technical summary and product information.

The DR74-3R3-R is a surface-mount fixed inductor from Eaton - Electronics Division. It is a shielded drum core wirewound inductor with a ferrite core, providing 3.3µH inductance with ±20% tolerance. The component is rated for 3.94A DC current and has a saturation current rating of 5.4A.

 

With a DC resistance of just 18.3mΩ, this inductor offers low power loss in high-current applications. The shielded construction helps reduce electromagnetic interference, making it suitable for compact power circuits. It operates across a temperature range of -40°C to 125°C, ensuring reliable performance in demanding operating conditions.

 

The device is supplied in a nonstandard surface-mount package with a 7.60mm × 7.60mm footprint and a height of 4.35mm. This compact size is designed for space-constrained PCB layouts. Its combination of low DCR, high saturation current, and shielding makes it a practical choice for power conversion circuits.

DR74-3R3-R Quick Information

Product Type: Fixed Inductor
Series: DR74
Canonical Name: Drum Core Wirewound Fixed Inductor
Subcategory: Wirewound Inductor

DR74-3R3-R Compliance

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

DR74-3R3-R Estimated Pricing

Qty Low High
1+ $0.59 $0.59
10+ $0.57 $0.57
1,100+ $0.57 $0.57

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

DR74-3R3-R Features

  • Shielded ferrite core reduces electromagnetic interference.
  • 3.3µH inductance with ±20% tolerance.
  • Rated for 3.94A DC current.
  • Low DCR of 18.3mΩ.
  • Surface mount 7.60mm square package.

DR74-3R3-R Applications

  • Filters ripple in DC-DC converter outputs.
  • Stores energy in switching power supplies.
  • Reduces EMI in shielded power circuits.

DR74-3R3-R FAQs

7 frequently asked questions generated from this part’s specifications.
What is the inductance of the DR74-3R3-R?

The inductance is 3.3µH.

What is the rated current of this inductor?

The rated current is 3.94A.

What is the DC resistance?

The DC resistance is 18.3mΩ.

What is the saturation current?

The saturation current is 5.4A.

What is the operating temperature range?

It operates from -40°C to 125°C.

What mounting type is used?

The inductor is surface mount.

What is the package size?

The inductor uses a nonstandard package measuring 7.60mm x 7.60mm and 4.35mm high.

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