CMT-8104 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The CMT-8104 is a 10 mH, 2-line common mode choke manufactured by Triad Magnetics, designed for power line filtering applications. This through-hole component operates at a maximum current rating of 2.4A with a DC resistance of 170mOhm and is rated for AC voltages up to 1500V. The part is currently in active production status with 1017 units in stock. Common mode chokes are essential components in EMI/RFI filtering circuits for power distribution systems. Equivalent substitute parts may be required due to supply chain constraints, regional availability, or inventory management considerations.

Substiute Parts

CMT-8104

Triad MagneticsIn Stock: 1046CMT-8104 Datasheet

Current PartRFQ

8104-RC

Bourns Inc.In Stock: 12148104-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMT-8104 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 10 mH @ 1 kHz
• Current rating: 2.4A maximum
• DC resistance: 170mOhm maximum
• Number of lines: 2-line configuration
• Mounting type: Through hole
• Package configuration: Vertical, 4 PC pin
• Physical dimensions: 1.200" L x 0.600" W (30.48mm x 15.24mm)
• Height: 1.200" (30.48mm) maximum
• Operating temperature range: -55°C ~ 105°C
• RoHS3 compliance

The Bourns Inc. 8104-RC part meets all mandatory matching parameters and qualifies as a direct electrical and mechanical substitute for the CMT-8104.

Parameter Comparison

Engineering Selection Recommendations

Both the CMT-8104 and 8104-RC are active production components with full RoHS3 compliance and REACH unaffected status. The CMT-8104 carries approvals from CSA, IEC, UL, and VDE. Selection between these parts should be based on:

Availability and Lead Time: The 8104-RC (Bourns Inc.) currently has 1176 units in stock compared to 1017 units for the CMT-8104. Either part is suitable for immediate procurement.

Regulatory Compliance: Both parts meet identical environmental and trade compliance requirements (ROHS3, REACH Unaffected, EAR99, HTSUS 8548.00.0000).

Electrical Performance: Both parts deliver identical electrical characteristics across all specified parameters, ensuring direct functional equivalence in power line filtering applications.

Mechanical Compatibility: Identical physical dimensions and through-hole pin configuration ensure direct PCB footprint compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the 8104-RC be used as a direct replacement for the CMT-8104 in existing designs?

A: Yes. The 8104-RC meets all electrical and mechanical specifications of the CMT-8104, including inductance, current rating, DC resistance, operating temperature range, physical dimensions, and pin configuration. No circuit modifications or PCB layout changes are required.

Q: Are there any differences in regulatory approvals between these parts?

A: The CMT-8104 carries explicit approvals from CSA, IEC, UL, and VDE. The 8104-RC does not list specific approval agencies in the provided data. Verify approval requirements for your specific application before substitution.

Q: Do both parts have identical moisture sensitivity levels?

A: No. The CMT-8104 has MSL listed as Not Applicable, while the 8104-RC has MSL 1 (Unlimited). This difference does not affect electrical performance but may impact storage and handling procedures.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 1.200" L x 0.600" W (30.48mm x 15.24mm) with a maximum height of 1.200" (30.48mm). Both use vertical, 4 PC pin through-hole packaging.

Q: What is the inductance specification for these common mode chokes?

A: Both the CMT-8104 and 8104-RC are rated at 10 mH measured at 1 kHz frequency, with a maximum DC resistance of 170mOhm and maximum current rating of 2.4A.

Q: Can these parts be used in applications requiring higher current ratings?

A: No. Both parts are rated for a maximum continuous current of 2.4A. Applications requiring higher current capacity require alternative component selection.