Bourns 8105-RC Common Mode Choke Equivalent & Substitute Parts

Part Overview

The Bourns 8105-RC is a 7 mH, 2-line common mode choke designed for through-hole mounting applications requiring EMI filtering in power line circuits. This component features a 2.8A maximum current rating and 120 mOhm DC resistance, operating across the industrial temperature range of -55°C to 105°C. The part maintains Active product status and is ROHS3 compliant, making it suitable for modern electronic equipment requiring regulatory compliance. Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and sourcing options while maintaining electrical and mechanical compatibility.

Substiute Parts

8105-RC

Bourns Inc.In Stock: 10158105-RC Datasheet

Current PartRFQ

CMT-8105

Triad MagneticsIn Stock: 738CMT-8105 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 8105-RC is determined by strict equivalence across the following critical parameters:

• Inductance value: 7 mH @ 1 kHz
• Current rating: 2.8A maximum
• DC resistance: 120 mOhm maximum
• Number of lines: 2-line configuration
• Mounting type: Through-hole
• Physical dimensions: 1.200" L x 0.600" W (30.48mm x 15.24mm)
• Height: 1.200" (30.48mm) maximum
• Package configuration: Vertical, 4-pin

The Triad Magnetics CMT-8105 meets all specified electrical and mechanical parameters, establishing it as a direct substitute. Both components share identical inductance, current rating, DC resistance, line configuration, mounting method, and physical footprint. Operating temperature ranges are equivalent across both parts.

Parameter Comparison

Engineering Selection Recommendations

Both the Bourns 8105-RC and Triad Magnetics CMT-8105 maintain Active product status and ROHS3 compliance. The Triad Magnetics CMT-8105 provides additional regulatory certifications (CSA, IEC, UL, VDE) and specifies an AC voltage rating of 1500V, offering enhanced documentation for applications requiring formal approval agency compliance. Component selection should be based on inventory availability, lead time requirements, and specific regulatory documentation needs for the target application. Both parts are electrically and mechanically interchangeable within the specified parameter constraints.

Frequently Asked Questions (FAQ)

Q: Can the Triad Magnetics CMT-8105 directly replace the Bourns 8105-RC in existing designs?

A: Yes. Both components share identical electrical specifications (7 mH inductance, 2.8A current rating, 120 mOhm DCR) and mechanical dimensions (1.200" L x 0.600" W, 1.200" height). The through-hole, 4-pin vertical package configuration is identical, enabling direct PCB footprint compatibility.

Q: What are the key parameters that determine substitution eligibility?

A: Inductance value (7 mH @ 1 kHz), maximum current rating (2.8A), DC resistance (120 mOhm maximum), number of lines (2), mounting type (through-hole), physical dimensions (1.200" L x 0.600" W, 1.200" height), and package configuration (vertical, 4-pin) must remain constant for substitution.

Q: Does the Triad Magnetics CMT-8105 offer any additional specifications?

A: The CMT-8105 specifies an AC voltage rating of 1500V and includes approval certifications from CSA, IEC, UL, and VDE. These represent documented specifications not provided for the Bourns 8105-RC in the available data.

Q: Are both parts suitable for power line filtering applications?

A: Yes. Both components are designed for common mode choke applications. The Triad Magnetics CMT-8105 is explicitly categorized as a power line filter type, with corresponding regulatory certifications supporting this application class.

Q: What is the operating temperature range for both parts?

A: Both the Bourns 8105-RC and Triad Magnetics CMT-8105 operate across -55°C to 105°C, covering industrial temperature requirements.