CMLE053T-3R3MS Equivalent & Substitute Parts

Part Overview

The CMLE053T-3R3MS is a 3.3 µH shielded inductor manufactured by Delta Electronics/Cyntec, rated for 5.8 A continuous current with a maximum DC resistance of 36mOhm. This surface mount component is designed for applications requiring compact, shielded inductance in nonstandard package configurations. The part maintains Active product status and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance can be maintained within the specified parameter tolerances while meeting application requirements.

Substiute Parts

CMLE053T-3R3MS

Delta Electronics/CyntecIn Stock: 1100CMLE053T-3R3MS Datasheet

Current PartRFQ

PA4340.332NLT

Pulse ElectronicsIn Stock: 3962PA4340.332NLT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMLE053T-3R3MS is determined by the following critical parameters:

Inductance Value: Must be 3.3 µH with ±20% tolerance to maintain circuit performance.

Current Rating: Substitute parts must support minimum 5.8 A continuous current. Parts with lower current ratings do not qualify.

DC Resistance: Maximum 36mOhm DCR ensures thermal performance and efficiency requirements are met. Higher DCR values introduce unacceptable power loss.

Shielding: Shielded construction is mandatory to prevent electromagnetic interference in the target application.

Saturation Current: Must equal or exceed 6.6 A to prevent core saturation under transient conditions.

Mounting and Package: Surface mount configuration with nonstandard package dimensions must be compatible with board layout constraints.

Compliance: RoHS3 compliance and MSL 1 rating are required for manufacturing and environmental standards.

The PA4340.332NLT meets these substitution criteria within the specified parameter windows.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (CMLE053T-3R3MS): Recommended for applications requiring the full -55 to 125°C operating temperature range. Delta Electronics/Cyntec manufacturing provides established supply chain continuity with 1077 units in current inventory.

Substitute Part (PA4340.332NLT): The PA4340.332NLT qualifies as a functional substitute when operating temperature requirements do not extend below -40°C. This part is manufactured by Pulse Electronics and carries AEC-Q200 automotive qualification, providing additional reliability assurance for automotive and industrial applications. The substitute exhibits superior saturation current performance (8.0 A versus 6.6 A), providing enhanced transient margin. DC resistance remains within acceptable limits at 38mOhm maximum. Current inventory of 3866 units ensures availability. The continuous current rating of 5.0 A is lower than the primary part; applications operating continuously above 5.0 A require verification against actual load profiles.

Both parts maintain RoHS3 compliance, MSL 1 moisture sensitivity, and surface mount configuration suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can PA4340.332NLT replace CMLE053T-3R3MS in all applications?

A: Substitution is valid when operating temperature does not fall below -40°C. The CMLE053T-3R3MS supports extended low-temperature operation to -55°C; applications requiring this range must use the primary part. Additionally, applications with continuous current demands exceeding 5.0 A require the primary part's 5.8 A rating.

Q: What is the impact of the 2mOhm DCR difference between parts?

A: The PA4340.332NLT exhibits 38mOhm maximum DCR versus 36mOhm for the CMLE053T-3R3MS. This 5.6% increase results in proportionally higher resistive losses. For applications sensitive to thermal performance or efficiency, calculate actual power dissipation at operating current to confirm acceptability.

Q: Are the physical dimensions compatible?

A: Both parts use nonstandard package configurations. CMLE053T-3R3MS measures 4.85mm L × 4.70mm W × 3.00mm H (seated). PA4340.332NLT measures 6.00mm L × 5.40mm W × 3.00mm H (seated). Board layout must accommodate the larger footprint of the substitute part. Height is identical at 3.00mm maximum.

Q: What certifications apply to each part?

A: Both parts are RoHS3 compliant and REACH unaffected. PA4340.332NLT carries additional AEC-Q200 automotive qualification, suitable for automotive and high-reliability industrial applications. CMLE053T-3R3MS does not list AEC-Q200 qualification.

Q: How do saturation current ratings affect circuit performance?

A: Saturation current (Isat) defines the threshold at which core inductance begins to degrade under transient overcurrent conditions. PA4340.332NLT provides 8.0 A Isat versus 6.6 A for CMLE053T-3R3MS, offering 21% additional margin before saturation occurs. This benefits applications with inductive load switching or fault current transients.

Q: Can these parts be used interchangeably in existing designs?

A: Electrical substitution is feasible when temperature and current requirements align with PA4340.332NLT specifications. Physical layout changes are required due to footprint differences. Design validation should confirm thermal performance and transient behavior remain acceptable with the substitute part's electrical characteristics.