DR1040-3R8-R Shielded wirewound drum core inductor, 3.8 µH inductance, 5.5 A rated current, 13 mOhm max DCR, surface mount.
Mfr Part #:

DR1040-3R8-R

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
Shielded wirewound drum core inductor, 3.8 µH inductance, 5.5 A rated current, 13 mOhm max DCR, surface mount.
Total Stock: 122 pcs
$ Price Range: $0.40 - $0.75

DR1040-3R8-R Available from 1 distributor

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DR1040-3R8-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
SVHC Present
Shielding
Tape & Reel
Tolerance
Type
Width

DR1040-3R8-R Description

Short technical summary and product information.

The DR1040-3R8-R is a shielded wirewound drum core inductor from Eaton - Electronics Division. It offers an inductance of 3.8 µH with a tolerance of ±30% and a rated current of 5.5 A, while the saturation current reaches 6.4 A. The low DC resistance of 13 mOhm max minimizes power losses, making it suitable for high-efficiency power conversion circuits.

 

The inductor features a ferrite core and is fully shielded to reduce electromagnetic interference. It is constructed in a surface-mount package with dimensions of 10.50 mm x 10.30 mm x 4.00 mm, and operates over a wide temperature range of -40°C to 125°C, enabling use in harsh environments.

 

Typical applications include DC-DC converters, power supplies, and voltage regulation modules where high current capability and low profile are required. The shielded design helps meet EMI compliance in compact electronic designs.

DR1040-3R8-R Quick Information

Product Type: Shielded Power Inductor
Series: DR1040
Canonical Name: DR1040-3R8-R Shielded Power Inductor
Subcategory: Shielded Power Inductors

DR1040-3R8-R Compliance

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

DR1040-3R8-R Estimated Pricing

Qty Low High
1+ $0.75 $0.75
10+ $0.62 $0.62
100+ $0.51 $0.51
500+ $0.43 $0.43
850+ $0.40 $0.40
1,700+ $0.40 $0.40

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

DR1040-3R8-R Features

  • Shielded wirewound drum core construction.
  • Inductance 3.8 µH with ±30% tolerance.
  • Rated current 5.5 A, saturation 6.4 A.
  • Low DCR of 13 mOhm max.
  • Wide operating temperature range -40°C to 125°C.

DR1040-3R8-R Applications

  • Ideal for DC-DC converter output filtering.
  • Used in power supply voltage regulation modules.
  • Suitable for high current EMI-sensitive circuits.
  • Applied in automotive electronics requiring wide temperature range.

DR1040-3R8-R FAQs

7 frequently asked questions generated from this part’s specifications.
What is the inductance of the DR1040-3R8-R?

The inductance is 3.8 µH.

What is the current rating of the DR1040-3R8-R?

The rated current is 5.5 A, with a saturation current of 6.4 A.

What is the DC resistance of the DR1040-3R8-R?

The maximum DC resistance is 13 mOhm.

What is the package size of the DR1040-3R8-R?

The package dimensions are 10.50 mm x 10.30 mm x 4.00 mm, surface mount, nonstandard.

Is the DR1040-3R8-R shielded?

Yes, it is a shielded inductor.

What is the operating temperature range of the DR1040-3R8-R?

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

What is the tolerance of the inductance?

The inductance tolerance is ±30%.

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