1140-181K-RC This Bourns 1140-181K-RC is a fixed inductor with 180µH inductance and 7.8A rated current. It features a through hole radial package with ferrite core and unshielded construction.
Mfr Part #:

1140-181K-RC

Available from 1 distributors
Mfr Name: Bourns
Bourns
This Bourns 1140-181K-RC is a fixed inductor with 180µH inductance and 7.8A rated current. It features a through hole radial package with ferrite core and unshielded construction.
Total Stock: 6 pcs

1140-181K-RC Available from 1 distributor

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1140-181K-RC Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Current Rating (Amps)
DC Resistance (DCR)
Diameter
Dielectric Withstanding Voltage (@ terminal to core)
Dielectric Withstanding Voltage (@ terminal to shrink tube cover)
Height
Inductance
Lead Spacing
Lead Style
Material
Mounting Type
Operating Temperature
Rated Current
Shielding
Test Frequency
Tolerance
Type

1140-181K-RC Description

Short technical summary and product information.

The Bourns 1140-181K-RC is a fixed inductor from the 1140 series, designed for high current applications. It offers an inductance of 180µH with ±10% tolerance, measured at 1 kHz. The rated current is 7.8 A, defined by a 50°C maximum temperature rise and 5% maximum inductance drop, with a saturation current of 15.5 A.

 

This unshielded inductor uses a ferrite core and an epoxy-coated bobbin. Its DC resistance is a maximum of 45 mOhm, contributing to low power loss. The operating temperature range spans -55°C to 105°C. Dielectric withstanding voltage is 2500 Vrms from terminal to shrink tube cover and 1000 Vrms from terminal to core.

 

The component is supplied in a through hole radial package, measuring 38.10 mm in diameter and 26.16 mm in height. It features self-leaded construction with fixed lead spacing of 1.45 mm. A center hole is provided for mechanical mounting. The inductor is RoHS compliant.

1140-181K-RC Quick Information

Product Type: Fixed Inductor
Series: 1140
Canonical Name: Bourns 1140-181K-RC Fixed Inductor 180µH 7.8A Through Hole
Subcategory: Through Hole Inductor

1140-181K-RC Compliance

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

1140-181K-RC Features

  • 180µH inductance with ±10% tolerance.
  • Rated current of 7.8A at 50°C rise.
  • Very low 45mOhm maximum DC resistance.
  • Unshielded ferrite core construction.
  • Through hole radial package for easy mounting.

1140-181K-RC Applications

  • Suitable for high current power supply filtering.
  • Ideal for DC-DC converter output chokes.
  • Used in industrial and automotive electronics.
  • Energy storage in switching regulators.

1140-181K-RC FAQs

7 frequently asked questions generated from this part’s specifications.
What is the inductance of the 1140-181K-RC?

The inductance is 180 µH, measured at 1 kHz.

What is the rated current of this inductor?

Rated current is 7.8 A, defined by a 50°C maximum temperature rise and 5% maximum inductance drop.

What is the DC resistance?

Maximum DC resistance is 45 mOhm.

What is the package type?

Through hole radial package, 38.10 mm diameter, 26.16 mm height, lead spacing 1.45 mm.

Is this inductor shielded?

No, it is unshielded.

What is the operating temperature range?

-55°C to 105°C.

What core material is used?

Ferrite core.

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