CME375-3 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The CME375-3 is a 2-line common mode choke manufactured by Triad Magnetics, designed for power line filtering applications. This through-hole component delivers 10.9 mH inductance at 10 kHz with a maximum current rating of 3.5A and DC resistance of 122 mOhm. The part maintains Active product status and carries multiple international approvals including CSA, IEC, UL, and VDE certifications. Substitute parts are identified when electrical specifications, mechanical dimensions, and compliance ratings remain identical across manufacturing batches or variant designations.

Substiute Parts

CME375-3

Triad MagneticsIn Stock: 723CME375-3 Datasheet

Current PartRFQ

CME375-3-B

Triad MagneticsIn Stock: 1086CME375-3-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CME375-3 is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Inductance value (10.9 mH @ 10 kHz), current rating (3.5A maximum), and DC resistance (122 mOhm maximum) must be identical. AC voltage rating (250V) and operating temperature range (-40°C ~ 80°C) establish the functional envelope.

Mechanical Compatibility: Through-hole mounting type, vertical 4-pin package configuration, and physical dimensions (1.500" L x 1.260" W x 1.180" H maximum) ensure PCB layout compatibility without redesign.

Compliance & Certification: RoHS3 compliance and approvals from CSA, IEC, UL, and VDE must be maintained to satisfy regulatory and safety requirements.

Series & Manufacturer: Parts must belong to the CME series from Triad Magnetics and maintain Active product status.

The CME375-3-B variant meets all substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The CME375-3 and CME375-3-B are electrically and mechanically equivalent components. Both parts carry identical electrical specifications, physical dimensions, and compliance certifications. Selection between these parts may be based on inventory availability and supply chain considerations. The CME375-3-B currently maintains higher inventory levels (1037 pcs) compared to the CME375-3 (682 pcs). Both parts satisfy CSA, IEC, UL, and VDE regulatory requirements and maintain ROHS3 compliance status, ensuring compatibility with applications requiring international safety and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can CME375-3-B be used as a direct replacement for CME375-3?

A: Yes. The CME375-3-B is a direct equivalent. All electrical parameters (inductance, current rating, DC resistance, voltage rating), mechanical dimensions, mounting configuration, and compliance certifications are identical.

Q: Are there any differences in PCB layout or pin configuration between these parts?

A: No. Both parts use identical through-hole mounting with vertical 4-pin package configuration and matching physical dimensions (1.500" L x 1.260" W x 1.180" H maximum). No PCB redesign is required for substitution.

Q: Do both parts meet the same regulatory and safety standards?

A: Yes. Both CME375-3 and CME375-3-B carry approvals from CSA, IEC, UL, and VDE, and both maintain ROHS3 compliance status.

Q: What is the operating temperature range for these components?

A: Both parts operate across -40°C to 80°C, establishing the functional temperature envelope for power line filtering applications.

Q: Is the DC resistance specification the same for both parts?

A: Yes. Both parts specify a maximum DC resistance of 122 mOhm, which directly impacts power dissipation and thermal performance in the application circuit.

Q: What is the maximum current these components can handle?

A: Both parts are rated for a maximum continuous current of 3.5A at the specified inductance value of 10.9 mH @ 10 kHz.