Bourns 8110-RC Common Mode Choke Equivalent & Substitute Parts

Part Overview

The Bourns 8110-RC is a 20 mH, 2-line common mode choke designed for through-hole mounting applications requiring EMI filtering in power line circuits. This component features a 2.9A maximum current rating and 210 mOhm DC resistance, operating across the industrial temperature range of -55°C to 105°C. The part maintains Active product status with full ROHS3 compliance and REACH unaffected classification. Equivalent parts are identified to support procurement flexibility, design redundancy, and supply chain continuity.

Substiute Parts

8110-RC

Bourns Inc.In Stock: 8728110-RC Datasheet

Current PartRFQ

CMT-8110

Triad MagneticsIn Stock: 940CMT-8110 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 8110-RC is determined by strict equivalence across the following critical parameters:

• Inductance value: 20 mH @ 1 kHz
• Line configuration: 2-line common mode choke
• Current rating: 2.9A maximum
• DC resistance: 210 mOhm maximum
• Mounting technology: Through-hole
• Physical footprint: 1.350" L x 0.800" W, 1.450" maximum height
• Pin configuration: Vertical, 4-pin package

The Triad Magnetics CMT-8110 meets all electrical and mechanical substitution criteria, with identical inductance, current capacity, DCR specification, temperature range, and physical dimensions. Both parts maintain Active product status and ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Both the Bourns 8110-RC and Triad Magnetics CMT-8110 are qualified for direct substitution based on electrical parameter equivalence and regulatory compliance. The Triad Magnetics CMT-8110 provides additional voltage rating specification (1500V AC) and expanded approval agency certifications (CSA, IEC, UL, VDE), which may be advantageous in applications requiring documented safety agency compliance. Selection between these parts should be based on procurement availability, lead time requirements, and specific application certification needs.

Frequently Asked Questions (FAQ)

Q: Can the Triad Magnetics CMT-8110 replace the Bourns 8110-RC in existing designs?

A: Yes. Both parts share identical electrical specifications (20 mH inductance, 2.9A current rating, 210 mOhm DCR), operating temperature range, and physical dimensions. The vertical 4-pin through-hole package is identical, enabling direct PCB footprint compatibility.

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

A: Inductance value (20 mH @ 1 kHz), line configuration (2-line), current rating (2.9A), DC resistance (210 mOhm), mounting type (through-hole), and physical footprint (1.350" x 0.800" x 1.450" max height) must remain constant for substitution.

Q: Are there differences in regulatory compliance between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. The Triad Magnetics CMT-8110 includes documented approvals from CSA, IEC, UL, and VDE. The Bourns 8110-RC does not specify approval agencies in the provided data.

Q: Do these parts have identical moisture sensitivity levels?

A: The Bourns 8110-RC specifies MSL 1 (Unlimited). The Triad Magnetics CMT-8110 lists MSL as Not Applicable, typical for through-hole components without moisture-sensitive packaging.

Q: Are the physical dimensions and pin configurations identical?

A: Yes. Both parts measure 1.350" L x 0.800" W with a maximum height of 1.450", and both use a vertical 4-pin package configuration suitable for through-hole PCB assembly.