CMT-02105 Equivalent & Substitute Parts

Part Overview

The CMT-02105 is a 2-line common mode choke (CMC) manufactured by Tamura, designed for through-hole mounting applications. This component provides 5 mH inductance at 1 kHz with a maximum current rating of 1A and 400 mOhm DC resistance. The part is rated for 250V AC operation and features a compact vertical mounting configuration with 4-pin through-hole package.

The CMT-02105 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

CMT-02105

TamuraIn Stock: 870CMT-02105 Datasheet

Current PartRFQ

CMT-01104/17423002180Z

TamuraIn Stock: 679CMT-01104/17423002180Z Datasheet

Parametric EquivalentRFQ

SS11V-11050-CH

KEMETIn Stock: 1548SS11V-11050-CH Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CMT-02105 are identified based on strict parametric alignment within the common mode choke product category. The following criteria determine substitution eligibility:

Primary Matching Parameters:

• Number of Lines: 2
• Mounting Type: Through Hole
• Voltage Rating - AC: 250V
• Package Configuration: 4-pin vertical through-hole

Secondary Compatibility Parameters:

• Inductance @ 1 kHz: 5 mH (exact match preferred; minor deviations acceptable within application tolerance)
• Current Rating (Max): Equal to or greater than 1A
• DC Resistance (Max): Equal to or less than 400 mOhm
• Physical dimensions: Compatible with PCB footprint requirements

Substitute parts are grouped into two categories:

Parametric Equivalent: Parts with identical or near-identical electrical specifications and active product status, suitable for direct replacement in new designs or ongoing production.

Similar Equivalent: Parts with matching core parameters but variations in current rating, physical dimensions, or manufacturer, requiring verification of mechanical fit and thermal performance in the target application.

Parameter Comparison

Engineering Selection Recommendations

CMT-01104/17423002180Z (Parametric Equivalent - Tamura):

This part is the primary substitute for the CMT-02105. It maintains identical mounting configuration, voltage rating, and current rating. The inductance specification is 4 mH at 1 kHz, representing a 20% reduction from the main part. The DC resistance is 350 mOhm, which is lower than the 400 mOhm specification of the CMT-02105. The part carries active product status and RoHS compliance certification, supporting long-term supply chain availability. Physical dimensions differ slightly in width (12.50mm vs. 14.50mm), requiring PCB footprint verification. This part is suitable for applications where the reduced inductance value falls within acceptable design tolerance.

SS11V-11050-CH (Similar Equivalent - KEMET):

This part matches the inductance specification (5 mH @ 1 kHz) and DC resistance (400 mOhm) of the CMT-02105 exactly. The current rating is 1.1A, exceeding the 1A requirement. The part carries active product status and ROHS3 compliance. Physical dimensions are smaller (22.00mm L x 14.50mm W x 22.50mm H), which may provide space advantages in compact designs but requires verification of PCB footprint compatibility. The packaging is specified as tray format rather than the original configuration. This part is suitable for applications requiring exact inductance matching and higher current margin.

Both substitute parts satisfy the core electrical requirements for 2-line common mode choke applications at 250V AC operation with through-hole mounting. Selection between them depends on specific inductance tolerance requirements, physical space constraints, and supply chain preferences.

Frequently Asked Questions (FAQ)

Q: Can the CMT-01104/17423002180Z replace the CMT-02105 directly?

A: The CMT-01104/17423002180Z shares identical mounting type, voltage rating, current rating, and package configuration. The inductance is 4 mH instead of 5 mH. Direct replacement is possible only if the application design tolerates a 20% reduction in inductance value. PCB footprint width differs by 2mm (12.50mm vs. 14.50mm), requiring verification of pad spacing compatibility.

Q: What are the key differences between the SS11V-11050-CH and CMT-02105?

A: The SS11V-11050-CH matches the inductance (5 mH @ 1 kHz) and DC resistance (400 mOhm) specifications exactly. The current rating is higher (1.1A vs. 1A). Physical dimensions are smaller overall (22.00mm L vs. 28.00mm L; 22.50mm H vs. 28.00mm H). The manufacturer is KEMET instead of Tamura. These differences require verification of PCB footprint compatibility and thermal performance in the target application.

Q: Why is the CMT-02105 marked as obsolete?

A: The CMT-02105 carries obsolete product status, indicating that Tamura has discontinued active production and support. Substitute parts with active status ensure ongoing availability and compliance with current manufacturing standards.

Q: Are both substitute parts RoHS compliant?

A: Yes. The CMT-01104/17423002180Z is RoHS Compliant. The SS11V-11050-CH is ROHS3 Compliant. Both meet current environmental and regulatory requirements for electronic component manufacturing.

Q: What is the impact of different DC resistance values?

A: The CMT-02105 specifies 400 mOhm maximum DCR. The CMT-01104/17423002180Z specifies 350 mOhm, which is lower and results in reduced power dissipation. The SS11V-11050-CH matches the 400 mOhm specification. Lower DCR values improve efficiency but do not prevent substitution if the application design accommodates the change.

Q: Do physical dimension differences affect PCB compatibility?

A: Yes. The CMT-01104/17423002180Z is narrower (12.50mm vs. 14.50mm width). The SS11V-11050-CH is smaller in both length and height. PCB footprint pad spacing and component placement must be verified before substitution to ensure mechanical fit and proper solder joint formation.

Q: What is the significance of MSL (Moisture Sensitivity Level) differences?

A: The CMT-02105 and CMT-01104/17423002180Z both specify MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The SS11V-11050-CH specifies MSL as Not Applicable, indicating the component does not require moisture control during storage or handling. This difference does not affect substitution compatibility.