Bourns 1140-182K Fixed Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 1140-182K is a 1.8 mH unshielded drum core wirewound inductor rated for 4.5 A continuous current with a maximum DC resistance of 360 mOhm. This through-hole radial component operates across a temperature range of -55°C to 105°C and is designed for applications requiring fixed inductance values in standard radial vertical cylinder packaging.

The 1140-182K has reached obsolete product status. Identifying equivalent substitute parts with matching electrical and mechanical specifications is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

1140-182K

Bourns Inc.In Stock: 8861140-182K Datasheet

Current PartRFQ

IHB4BV182K

Vishay DaleIn Stock: 698IHB4BV182K Datasheet

SimilarRFQ

IHB4EB182K

Vishay DaleIn Stock: 827IHB4EB182K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Bourns 1140-182K are identified based on strict equivalence of the following critical parameters:

• Inductance value: 1.8 mH
• Inductance tolerance: ±10%
• DC resistance: 360 mOhm maximum
• Core type: Ferrite, unshielded
• Package type: Radial, vertical cylinder through-hole
• Operating temperature range: -55°C to 105°C
• Test frequency: 1 kHz

The substitute parts listed below maintain these core electrical and mechanical specifications. Current rating differences are noted in the parameter comparison table and must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The Vishay Dale IHB4BV182K and IHB4EB182K are electrically and mechanically equivalent to the Bourns 1140-182K for applications operating at or below 2.5 A continuous current. Both substitute parts maintain the same inductance value, DC resistance specification, core type, and through-hole radial vertical cylinder package configuration.

The primary design consideration is current rating. The original Bourns 1140-182K is rated for 4.5 A, while both Vishay Dale substitutes are rated for 2.5 A. Circuit designs requiring current levels between 2.5 A and 4.5 A cannot use these substitutes without thermal and performance re-evaluation.

For applications operating within the 2.5 A maximum current specification, either Vishay Dale part provides functional equivalence. Both substitute parts are currently in stock with adequate inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the Vishay Dale IHB4BV182K or IHB4EB182K be used as direct replacements for the Bourns 1140-182K?

A: Both Vishay Dale parts are mechanically and electrically compatible for applications operating at 2.5 A or below. The current rating difference must be verified against circuit requirements before substitution.

Q: What is the primary difference between the Bourns 1140-182K and its Vishay Dale substitutes?

A: The current rating differs. The Bourns part is rated for 4.5 A continuous current, while the Vishay Dale IHB4BV182K and IHB4EB182K are each rated for 2.5 A. All other electrical and mechanical parameters remain equivalent.

Q: Are the package dimensions identical between the main part and substitutes?

A: Both substitute parts maintain the same radial vertical cylinder through-hole package configuration. Specific dimensional data for the Vishay Dale parts is not provided in the available specifications, but package type equivalence is confirmed.

Q: What is the difference between the IHB4BV182K and IHB4EB182K?

A: Both parts share identical electrical specifications and current ratings. Specific differentiation criteria are not provided in the available data.

Q: Can I use these substitutes in a circuit designed for 4.5 A operation?

A: No. Circuits requiring sustained current above 2.5 A cannot use these substitutes without redesign and thermal analysis. Operating the 2.5 A rated parts beyond their current specification will result in excessive heat generation and component failure.