Bourns 8116 Common Mode Choke - Equivalent & Substitute Parts

Part Overview

The Bourns 8116 is a 50 mH, 2-line common mode choke designed for through-hole mounting applications requiring EMI filtering in power distribution circuits. The part operates at 2.3A maximum current with 450 mOhm DC resistance and functions across the temperature range of -55°C to 105°C.

The 8116 is classified as obsolete. Locating active production alternatives is necessary for new designs and ongoing procurement requirements.

Substiute Parts

8116

Bourns Inc.In Stock: 8368116 Datasheet

Current PartRFQ

8116-RC

Bourns Inc.In Stock: 9678116-RC Datasheet

DirectRFQ

CMT-8116

Triad MagneticsIn Stock: 860CMT-8116 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 8116 is determined by the following core parameters:

• Inductance value: 50 mH @ 1 kHz
• Number of lines: 2
• Current rating: 2.3A maximum
• DC resistance: 450 mOhm maximum
• Mounting type: Through hole
• Physical footprint: 1.550" L x 0.800" W, 1.650" height maximum
• Package configuration: Vertical, 4 PC pin

Parts meeting all these specifications are classified as direct substitutes. Parts from different manufacturers meeting identical electrical and mechanical parameters are classified as equivalent alternatives.

Parameter Comparison

Engineering Selection Recommendations

The Bourns 8116-RC is the primary substitute for the obsolete Bourns 8116. Both parts are manufactured by Bourns Inc. and share identical electrical and mechanical specifications. The 8116-RC is in active production status and carries ROHS3 compliance, addressing regulatory requirements for new designs.

The Triad Magnetics CMT-8116 is an equivalent alternative meeting all core electrical and mechanical parameters. This part is in active production and carries ROHS3 compliance. The CMT-8116 includes additional certifications (CSA, IEC, UL, VDE) and specifies AC voltage rating of 1500V, providing supplementary qualification data for applications requiring formal agency approvals.

Selection between the Bourns 8116-RC and Triad Magnetics CMT-8116 depends on supply chain availability, procurement preferences, and application-specific certification requirements.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 8116-RC directly replace the obsolete Bourns 8116?

A: Yes. The 8116-RC matches all electrical parameters (50 mH inductance, 2.3A current rating, 450 mOhm DCR) and mechanical specifications (through-hole mounting, identical footprint and height). Both parts are packaged as vertical, 4-pin configurations.

Q: What is the difference between the Bourns 8116-RC and Triad Magnetics CMT-8116?

A: Both parts meet identical core specifications for inductance, current rating, DC resistance, operating temperature, and physical dimensions. The CMT-8116 includes published AC voltage rating (1500V) and multiple agency certifications (CSA, IEC, UL, VDE), while the 8116-RC does not specify these parameters in the provided data.

Q: Are there packaging differences between substitute parts?

A: The Bourns 8116 is packaged in tape format. The Bourns 8116-RC is supplied in bulk packaging. The Triad Magnetics CMT-8116 is supplied in bulk packaging. Verify packaging requirements for your procurement and assembly processes.

Q: Can I use the Triad Magnetics CMT-8116 in applications originally designed for the Bourns 8116?

A: Yes, provided the application does not require specific Bourns manufacturer qualification. The CMT-8116 meets all electrical and mechanical parameters. The additional certifications (CSA, IEC, UL, VDE) and AC voltage specification may provide additional qualification for regulated applications.

Q: What is the RoHS compliance status of available substitutes?

A: The Bourns 8116-RC and Triad Magnetics CMT-8116 are both ROHS3 compliant. The original Bourns 8116 is RoHS non-compliant. For new designs subject to RoHS regulations, use either the 8116-RC or CMT-8116.