1140-3R3M-RC Fixed inductor 3.3µH with 28.1A current rating and 3mOhm DCR. Unshielded drum core wirewound construction in a through-hole radial package.
Mfr Part #:

1140-3R3M-RC

Available from 1 distributors
Mfr Name: Bourns
Bourns
Fixed inductor 3.3µH with 28.1A current rating and 3mOhm DCR. Unshielded drum core wirewound construction in a through-hole radial package.
Total Stock: 99 pcs

1140-3R3M-RC Available from 1 distributor

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1140-3R3M-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 Spacing
Lead Style
Material
Mounting Type
Operating Temperature
Saturation Current (ISAT)
Shielding
Termination Style
Tolerance
Type

1140-3R3M-RC Description

Short technical summary and product information.

The Bourns 1140-3R3M-RC is a fixed inductor from the 1140 series of high current chokes. It offers an inductance of 3.3 µH with a tolerance of ±20% measured at 1 kHz. The component is designed for high current applications with a rated current of 28.1 A (based on 50°C temperature rise and 5% inductance drop) and a saturation current of 80 A.

 

The inductor features a very low DC resistance of 3 mOhm maximum, minimizing power losses. It is unshielded and constructed with a ferrite core and wirewound drum core design. The operating temperature range is -55°C to 105°C.

 

The component is through-hole mounted with a radial, vertical cylinder package. It has self-leaded terminations and fixed lead spacing. The diameter is 38.10 mm and seated height is 26.16 mm. The core is coated with epoxy and covered with VW-1 rated shrink tubing.

1140-3R3M-RC Quick Information

Product Type: Fixed Inductor
Series: 1140
Canonical Name: Bourns 1140-3R3M-RC Fixed Inductor, 3.3µH, 28.1A, Unshielded, Through Hole
Subcategory: Drum Core, Wirewound

1140-3R3M-RC Compliance

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

1140-3R3M-RC Features

  • 3.3µH inductance with ±20% tolerance.
  • 28.1A rated current with low 3mOhm DCR.
  • Unshielded drum core wirewound ferrite construction.
  • Through-hole radial package with self-leaded terminations.
  • Operating temperature range -55°C to 105°C.

1140-3R3M-RC Applications

  • High current power supply filtering applications.
  • DC-DC converter output inductor use.
  • Low voltage high current regulator circuits.
  • Energy storage in switching power supplies.

1140-3R3M-RC FAQs

7 frequently asked questions generated from this part’s specifications.
What is the inductance of the 1140-3R3M-RC?

3.3 µH at 1 kHz.

What is the current rating?

28.1 A (Irms) based on 50°C temperature rise and 5% inductance drop.

What is the DC resistance?

3 mOhm maximum.

What is the saturation current?

80 A.

What is the package type?

Radial, vertical cylinder through-hole.

What is the operating temperature range?

-55°C to 105°C.

Is the inductor shielded?

No, it is unshielded.

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