CMLE053T-R68MS Equivalent & Substitute Parts

Part Overview

The CMLE053T-R68MS is a 680 nH shielded inductor manufactured by Delta Electronics/Cyntec, rated for 12.2 A continuous current with a maximum DC resistance of 8.5 mOhm. This surface mount component is designed for high-current applications requiring low inductance values with controlled impedance characteristics. The part is Active status and widely available in inventory (765 pcs in stock). Equivalent parts are identified when alternative manufacturers offer inductors with matching or compatible electrical specifications and mechanical form factors suitable for direct circuit substitution.

Substiute Parts

CMLE053T-R68MS

Delta Electronics/CyntecIn Stock: 797CMLE053T-R68MS Datasheet

Current PartRFQ

PA4340.681NLT

Pulse ElectronicsIn Stock: 3220PA4340.681NLT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The PA4340.681NLT from Pulse Electronics qualifies as an equivalent substitute based on the following critical parameters:

Matching Specifications:

• Inductance value: 680 nH at ±20% tolerance
• Inductance test frequency: 100 kHz
• Shielding classification: Shielded
• Mounting type: Surface Mount
• RoHS3 compliance
• MSL 1 rating (Unlimited moisture sensitivity)
• Operating temperature range overlap: -40°C to 125°C (covers primary operating window)

Substitution Basis: The PA4340.681NLT maintains the same inductance value and tolerance band, ensuring equivalent circuit performance at the specified test frequency. Both components are shielded surface mount inductors with identical moisture sensitivity ratings and RoHS compliance status. The substitute part's saturation current (14 A) exceeds the main part's rating (10.5 A), providing margin in high-current transient conditions. Physical dimensions differ slightly (6.00mm × 5.40mm vs. 4.85mm × 4.70mm), requiring PCB layout verification. The substitute's maximum DCR of 12 mOhm is higher than the main part's 8.5 mOhm specification, which may impact thermal performance in power-sensitive applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (CMLE053T-R68MS): Select this part when continuous current requirements reach 12.2 A and thermal performance is critical. The lower DCR of 8.5 mOhm reduces power dissipation in high-current applications. The extended operating temperature range (-55°C to 125°C) supports wider environmental specifications. Compact footprint (4.85mm × 4.70mm) accommodates space-constrained PCB layouts.

Substitute Part (PA4340.681NLT): The PA4340.681NLT is suitable for applications where continuous current does not exceed 8.5 A and PCB layout can accommodate the larger footprint (6.00mm × 5.40mm). The higher saturation current (14 A) provides transient margin. The higher DCR (12 mOhm) requires thermal analysis for power dissipation validation. Both parts maintain ROHS3 compliance and MSL 1 ratings, ensuring equivalent supply chain and environmental compliance. The substitute part's AEC-Q200 rating indicates automotive-grade qualification, providing additional reliability assurance for automotive applications.

Frequently Asked Questions (FAQ)

Q: Can PA4340.681NLT directly replace CMLE053T-R68MS in all applications?

A: Direct replacement requires verification of three factors: (1) PCB layout must accommodate the larger footprint (6.00mm × 5.40mm vs. 4.85mm × 4.70mm); (2) continuous current must not exceed 8.5 A, as the substitute is rated lower than the main part; (3) thermal performance must be validated, as the substitute's higher DCR (12 mOhm vs. 8.5 mOhm) increases power dissipation.

Q: What are the key electrical differences between these parts?

A: The main differences are continuous current rating (12.2 A vs. 8.5 A), DC resistance (8.5 mOhm vs. 12 mOhm), and saturation current (10.5 A vs. 14 A). Inductance value, tolerance, shielding, and test frequency are identical. The substitute's higher saturation current provides transient margin, while the main part offers superior continuous current handling and lower losses.

Q: Are there physical compatibility concerns?

A: Yes. The substitute part is larger (6.00mm × 5.40mm vs. 4.85mm × 4.70mm). Both share the same height (3.00mm maximum). PCB footprint and trace routing must be verified before substitution. Solder pad spacing and land pattern compatibility should be confirmed with component datasheets.

Q: Do both parts meet the same compliance standards?

A: Both parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings. The substitute part includes AEC-Q200 automotive qualification, which the main part does not specify. Both are Active status products with equivalent supply availability.

Q: What is the operating temperature difference?

A: The main part operates from -55°C to 125°C, while the substitute operates from -40°C to 125°C. For applications requiring operation below -40°C, the main part is required. For standard industrial and automotive ranges (-40°C to 125°C), both parts are equivalent.