CMLE041B-1R5MS Equivalent & Substitute Parts

Part Overview

The CMLE041B-1R5MS is a 1.5 µH shielded inductor manufactured by Delta Electronics/Cyntec, rated for 5 A continuous current with a maximum DC resistance of 56 Ohm. This surface mount component operates across the industrial temperature range of -55°C to 125°C and is classified as Active product status with full RoHS3 compliance.

Substitute parts are identified when equivalent inductance values, current ratings, shielding characteristics, and operating temperature ranges align within acceptable engineering tolerances, enabling direct replacement in circuit applications without functional degradation.

Key Parameters

Parameter	Value
Inductance	1.5 µH
Tolerance	±20%
Current Rating (Amps)	5 A
Current - Saturation (Isat)	5 A
DC Resistance (DCR)	56 Ohm Max
Shielding	Shielded
Operating Temperature	-55°C ~ 125°C
Inductance Frequency - Test	100 kHz
Mounting Type	Surface Mount
Package / Case	Nonstandard
Size / Dimension	0.173" L x 0.165" W (4.40mm x 4.20mm)
Height - Seated (Max)	0.047" (1.20mm)
RoHS Status	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the CMLE041B-1R5MS is determined by the following critical parameters:

Inductance Value: 1.5 µH (within ±20% tolerance band)
Current Rating: Minimum 5 A continuous current capability
Saturation Current (Isat): Minimum 5 A to maintain performance under peak load conditions
Shielding: Shielded construction required for electromagnetic containment
Operating Temperature Range: -55°C to 125°C minimum coverage
Mounting Type: Surface Mount configuration
Package Classification: Nonstandard form factor with compatible footprint dimensions
Regulatory Compliance: RoHS3 compliance and MSL Level 1 rating

The substitute part MPI4012V2-1R5-R meets these core substitution criteria through equivalent inductance specification, shielded construction, and matching operating temperature range. Variations in DC resistance, saturation current, and core material composition remain within acceptable engineering parameters for direct circuit replacement.

Parameter Comparison

Parameter	CMLE041B-1R5MS	MPI4012V2-1R5-R
Manufacturer	Delta Electronics/Cyntec	Eaton - Electronics Division
Inductance	1.5 µH	1.5 µH
Tolerance	±20%	±20%
Current Rating (Amps)	5 A	3.3 A
Current - Saturation (Isat)	5 A	4.3 A
DC Resistance (DCR)	56 Ohm Max	66 mOhm Max
Shielding	Shielded	Shielded
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C
Inductance Frequency - Test	100 kHz	100 kHz
Mounting Type	Surface Mount	Surface Mount
Package / Case	Nonstandard	Nonstandard, 2 Lead
Size / Dimension	0.173" L x 0.165" W (4.40mm x 4.20mm)	0.160" L x 0.171" W (4.06mm x 4.35mm)
Height - Seated (Max)	0.047" (1.20mm)	0.047" (1.20mm)
RoHS Status	RoHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Both components maintain Active product status with full regulatory compliance. The CMLE041B-1R5MS carries RoHS3 certification, while the MPI4012V2-1R5-R holds RoHS compliance. Both components achieve MSL Level 1 rating, indicating unlimited moisture sensitivity protection.

Selection between these parts depends on application current requirements. The CMLE041B-1R5MS supports the full 5 A rating with 5 A saturation current. The MPI4012V2-1R5-R provides 3.3 A continuous current with 4.3 A saturation current, suitable for applications operating below these thresholds. Physical dimensions remain compatible within nonstandard surface mount packaging constraints, with height specifications identical at 0.047" maximum seated height.

Frequently Asked Questions (FAQ)

Q: Can MPI4012V2-1R5-R replace CMLE041B-1R5MS in all applications?

A: Substitution is valid only for applications requiring continuous current at or below 3.3 A. Applications demanding the full 5 A rating require the original CMLE041B-1R5MS specification.

Q: Are the physical dimensions compatible for PCB layout?

A: Both components feature identical maximum seated height of 0.047" (1.20mm). Length and width dimensions differ slightly (CMLE041B-1R5MS: 4.40mm x 4.20mm; MPI4012V2-1R5-R: 4.06mm x 4.35mm). Verify footprint compatibility with PCB design specifications before substitution.

Q: What is the significance of the DC resistance difference?

A: CMLE041B-1R5MS specifies 56 Ohm maximum DCR, while MPI4012V2-1R5-R specifies 66 mOhm maximum DCR. This represents a substantial difference in resistive losses. Applications sensitive to power dissipation or thermal performance require evaluation of this parameter.

Q: Do both parts meet the same regulatory requirements?

A: Both components achieve RoHS compliance and MSL Level 1 rating. CMLE041B-1R5MS carries RoHS3 certification, representing the most current regulatory standard. MPI4012V2-1R5-R holds RoHS compliance. Both are suitable for regulated applications within their respective compliance frameworks.

Q: What is the core material difference between these inductors?

A: CMLE041B-1R5MS uses Metal core construction. MPI4012V2-1R5-R uses Metal Composite core with Drum Core, Wirewound topology. Both maintain shielded construction and equivalent inductance specification at 100 kHz test frequency.

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