CMLE053T-4R7MS Equivalent & Substitute Parts

Part Overview

The CMLE053T-4R7MS is a 4.7 µH shielded inductor manufactured by Delta Electronics/Cyntec, rated for 5.1 A continuous current with a maximum DC resistance of 54mOhm. 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 substantial inventory availability. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific requirements where the primary part may be unavailable or where alternative specifications better match circuit performance criteria.

Substiute Parts

CMLE053T-4R7MS

Delta Electronics/CyntecIn Stock: 10251CMLE053T-4R7MS Datasheet

Current PartRFQ

PA4340.472NLT

Pulse ElectronicsIn Stock: 24890PA4340.472NLT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMLE053T-4R7MS is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 4.7 µH with ±20% tolerance
• Shielding classification: Shielded construction required
• Mounting type: Surface mount only
• Package classification: Nonstandard form factor

Secondary Compatibility Parameters:

• Current rating: Minimum 4.6 A continuous (substitute must support circuit current demands)
• DC resistance: Maximum 53–54 mOhm (low-loss performance requirement)
• Operating temperature: Minimum -40°C to 125°C (acceptable for most industrial applications)
• Inductance test frequency: 100 kHz standard measurement condition

The PA4340.472NLT from Pulse Electronics meets all primary matching criteria and maintains compatibility across secondary parameters, with the exception of a reduced continuous current rating (4.6 A versus 5.1 A) and a narrower operating temperature minimum (-40°C versus -55°C). These differences must be evaluated against specific circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the CMLE053T-4R7MS and PA4340.472NLT are active production components with ROHS3 compliance and unlimited moisture sensitivity ratings, ensuring long-term availability and environmental regulatory alignment.

The PA4340.472NLT is suitable as a substitute where circuit current requirements do not exceed 4.6 A continuous operation. The substitute part offers a marginally lower DC resistance (53 mOhm versus 54 mOhm maximum), which may provide improved thermal performance in power-limited applications. The higher saturation current rating (6.0 A) of the substitute provides additional headroom for transient current conditions.

The CMLE053T-4R7MS remains the preferred selection for applications requiring the full 5.1 A continuous current rating or operation at temperatures below -40°C. The extended lower temperature specification (-55°C) supports aerospace, defense, and extreme environment applications.

Physical dimensions differ between the two parts: the CMLE053T-4R7MS measures 4.85mm × 4.70mm, while the PA4340.472NLT measures 6.00mm × 5.40mm. Both share identical height specifications (3.00mm maximum seated height). PCB layout and thermal management considerations must account for these dimensional differences.

Frequently Asked Questions (FAQ)

Q: Can the PA4340.472NLT replace the CMLE053T-4R7MS in all applications?

A: The PA4340.472NLT is functionally equivalent for applications where continuous current does not exceed 4.6 A and operating temperature remains above -40°C. Applications requiring the full 5.1 A rating or extended low-temperature operation must use the CMLE053T-4R7MS.

Q: What is the significance of the inductance tolerance specification?

A: Both parts specify ±20% inductance tolerance at 100 kHz test frequency. This tolerance band defines the acceptable range of inductance values across manufacturing lots and temperature variations. Circuit designs must account for this tolerance in filter, impedance matching, and resonant frequency calculations.

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

A: DC resistance directly impacts power dissipation and thermal rise in the inductor. The CMLE053T-4R7MS specifies 54 mOhm maximum, while the PA4340.472NLT specifies 53 mOhm maximum. At 5.1 A continuous current, the CMLE053T-4R7MS dissipates approximately 1.40 W, while the PA4340.472NLT at 4.6 A dissipates approximately 1.12 W. Lower resistance reduces thermal stress and extends component life.

Q: Are there physical compatibility concerns when substituting between these parts?

A: Yes. The PA4340.472NLT is larger (6.00mm × 5.40mm) compared to the CMLE053T-4R7MS (4.85mm × 4.70mm). PCB layout modifications may be required to accommodate the larger footprint. Both parts maintain identical 3.00mm maximum height, so vertical clearance is not affected.

Q: What compliance certifications apply to both parts?

A: Both the CMLE053T-4R7MS and PA4340.472NLT are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8504.50.8000. The PA4340.472NLT carries AEC-Q200 automotive qualification, which is not specified for the CMLE053T-4R7MS.

Q: How does saturation current differ between these inductors?

A: The CMLE053T-4R7MS saturates at 5.1 A, while the PA4340.472NLT saturates at 6.0 A. Saturation current defines the threshold beyond which inductance degrades significantly. The PA4340.472NLT provides greater margin for transient overcurrent conditions, though its continuous current rating remains lower at 4.6 A.