1140-2R7M-RC The 1140-2R7M-RC is a Bourns 1140 series drum core wirewound fixed inductor with 2.7µH inductance, 28.1A rated current, and 3mOhm maximum DC resistance, packaged in a radial leaded through-hole form.
Mfr Part #:

1140-2R7M-RC

Available from 1 distributors
Mfr Name: Bourns
Bourns
The 1140-2R7M-RC is a Bourns 1140 series drum core wirewound fixed inductor with 2.7µH inductance, 28.1A rated current, and 3mOhm maximum DC resistance, packaged in a radial leaded through-hole form.
✓ Total Stock: 100 pcs

1140-2R7M-RC Available from 1 distributor

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✓ Non-Authorised
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100 pcs
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1140-2R7M-RC Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Current Rating (Amps)
DC Resistance (DCR)
Diameter
Height
Inductance
Lead Style
Material
Mounting Type
Operating Temperature
Shielding
Termination Style
Tolerance
Type

1140-2R7M-RC Description

Short technical summary and product information.

The 1140-2R7M-RC is a fixed inductor from Bourns' 1140 series, designed for high current power applications. It features a ferrite bobbin core with epoxy coating, providing very high current capacity and low DC resistance. The inductor is rated for 28.1A RMS current (with 50°C temperature rise and 5% inductance drop) and has a saturation current of 80A. The DC resistance is a maximum of 3mOhm.

 

The component is unshielded and uses a drum core wirewound construction. It is designed for through-hole mounting with a radial lead style and self-leaded terminations. The package is a vertical cylinder with a diameter of 38.10mm (1.500 inches) and height of 26.16mm (1.030 inches). The operating temperature range is -55°C to 105°C.

 

Typical applications include power supply filtering, DC-DC converters, and high current chokes. The inductor is RoHS compliant per the 2011/65/EU directive.

1140-2R7M-RC Quick Information

Product Type: Fixed Inductor
Series: 1140
Canonical Name: Fixed Inductor 2.7µH 28.1A 3mOhm Radial Leaded
Subcategory: Drum Core, Wirewound

1140-2R7M-RC Compliance

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

1140-2R7M-RC Features

  • Very high current capacity (28.1A).
  • Low DC resistance (3mOhm).
  • Epoxy coated ferrite bobbin core.
  • VW-1 rated shrink tubing cover.
  • Through-hole mounting, fixed lead spacing.

1140-2R7M-RC Applications

  • Power supply input/output filtering.
  • DC-DC converter energy storage.
  • High current choke applications.
  • Switching regulator output smoothing.

1140-2R7M-RC FAQs

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

2.7µH at 1kHz.

What is the rated current?

28.1A (50°C temperature rise, 5% inductance drop).

What is the DC resistance?

3mOhm maximum.

What is the saturation current?

80A.

What is the operating temperature range?

-55°C to 105°C.

What is the package type?

Radial, Vertical Cylinder, Through Hole.

Is the inductor shielded?

No, it is unshielded.

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