CMLE041B-1R0MS Equivalent & Substitute Parts

Part Overview

The CMLE041B-1R0MS is a 1 µH shielded inductor manufactured by Delta Electronics/Cyntec, rated for 5.5 A continuous current with a maximum DC resistance of 34.5 Ohm. This surface mount component operates across the industrial temperature range of -55°C to 125°C and is RoHS3 compliant. The part is currently active in production with 1003 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and current rating category.

Substiute Parts

CMLE041B-1R0MS

Delta Electronics/CyntecIn Stock: 1048CMLE041B-1R0MS Datasheet

Current PartRFQ

MPI4012V2-1R0-R

Eaton - Electronics DivisionIn Stock: 788MPI4012V2-1R0-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMLE041B-1R0MS is determined by the following critical parameters:

• Inductance value of 1 µH at 100 kHz test frequency
• Tolerance of ±20%
• Shielded construction
• Surface mount packaging with nonstandard case dimensions
• Operating temperature range of -55°C to 125°C
• Current rating capability of 5.5 A minimum
• Saturation current (Isat) of 6 A or higher
• DC resistance within acceptable limits for the application

The MPI4012V2-1R0-R from Eaton - Electronics Division meets these substitution criteria. While the current rating is lower at 4.3 A and DC resistance is lower at 46.5 mOhm, the saturation current of 6.5 A and identical inductance value at 100 kHz maintain functional equivalence for applications where the 4.3 A continuous rating is sufficient. Both parts share identical operating temperature range, shielding type, surface mount configuration, and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the CMLE041B-1R0MS and MPI4012V2-1R0-R are active production components with full RoHS compliance and unlimited moisture sensitivity ratings. Selection between these parts depends on application current requirements. The CMLE041B-1R0MS supports continuous current up to 5.5 A, while the MPI4012V2-1R0-R is rated for 4.3 A continuous current. The MPI4012V2-1R0-R exhibits lower DC resistance at 46.5 mOhm compared to 34.5 Ohm for the CMLE041B-1R0MS, resulting in reduced power dissipation. Both parts maintain identical inductance tolerance, operating temperature range, and saturation current performance within specified limits. Physical dimensions differ slightly; PCB layout verification is necessary to confirm fit within the available mounting space.

Frequently Asked Questions (FAQ)

Q: Can the MPI4012V2-1R0-R replace the CMLE041B-1R0MS in all applications?

A: Substitution is valid only when the application current requirement does not exceed 4.3 A continuous. The MPI4012V2-1R0-R has a lower current rating than the CMLE041B-1R0MS. If the circuit requires sustained current above 4.3 A, the CMLE041B-1R0MS must be used.

Q: What are the physical dimension differences between these parts?

A: The CMLE041B-1R0MS measures 4.40 x 4.20 x 1.20 mm, while the MPI4012V2-1R0-R measures 4.06 x 4.35 x 1.20 mm. Height is identical at 1.20 mm. Verify PCB footprint compatibility before substitution.

Q: Do both parts have identical inductance specifications?

A: Yes. Both parts are specified at 1 µH with ±20% tolerance, measured at 100 kHz test frequency.

Q: Are there compliance differences between these parts?

A: The CMLE041B-1R0MS is RoHS3 compliant, while the MPI4012V2-1R0-R is RoHS compliant. Both meet RoHS requirements. Both parts have MSL rating of 1 (Unlimited) and ECCN classification of EAR99.

Q: How do the DC resistance values affect circuit performance?

A: The CMLE041B-1R0MS has 34.5 Ohm maximum DC resistance, while the MPI4012V2-1R0-R has 46.5 mOhm maximum DC resistance. Lower DC resistance in the MPI4012V2-1R0-R results in reduced resistive losses and lower heat generation during operation.

Q: What is the saturation current difference and why does it matter?

A: The CMLE041B-1R0MS saturates at 6 A, while the MPI4012V2-1R0-R saturates at 6.5 A. Saturation current defines the maximum current before inductance degrades significantly. Both values exceed their respective continuous current ratings, providing adequate margin.