CML0510-2N7-CNH Equivalent & Substitute Parts

Part Overview

The CML0510-2N7-CNH is a 2.7 nH shielded thin film inductor manufactured by Delta Electronics/Cyntec in the 0402 (1005 Metric) surface mount package. This component is rated for 600 mA continuous current with a maximum DC resistance of 160 mOhm and operates across the temperature range of -40°C to 125°C. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement.

Substiute Parts

CML0510-2N7-CNH

Delta Electronics/CyntecIn Stock: 1072CML0510-2N7-CNH Datasheet

Current PartRFQ

744901027

Würth ElektronikIn Stock: 11089744901027 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for thin film inductors is determined by matching the following critical parameters:

• Inductance Value: Must be identical (2.7 nH)
• Package / Case: Must be identical (0402 / 1005 Metric)
• Operating Temperature Range: Must encompass or match the original (-40°C to 125°C)
• Current Rating: Must meet or exceed the application requirement (600 mA minimum)
• DC Resistance: Lower or equal values are acceptable; higher values may impact circuit performance
• Regulatory Compliance: RoHS and REACH status must be maintained

The substitute part 744901027 (Würth Elektronik WE-TCI series) matches the inductance value and package specification. However, differences in shielding configuration, current rating, and DC resistance characteristics must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The 744901027 (Würth Elektronik WE-TCI) provides functional equivalence for the obsolete CML0510-2N7-CNH based on matching inductance value and package specification. Both components maintain identical operating temperature ranges and MSL ratings, ensuring thermal and moisture handling compatibility.

Selection of this substitute requires evaluation of three critical differences:

Current Rating Differential: The substitute part is rated for 440 mA versus the original 600 mA. Applications requiring the full 600 mA rating cannot use this substitute without thermal and reliability analysis.

DC Resistance Increase: The substitute exhibits 300 mOhm maximum DCR compared to 160 mOhm in the original. This 87.5% increase in resistance will result in higher power dissipation and potential circuit performance degradation in current-sensitive applications.

Shielding Configuration: The substitute is unshielded versus the shielded design of the original. In applications requiring electromagnetic isolation or operating in high-noise environments, shielding characteristics must be verified against circuit requirements.

Both components maintain current regulatory compliance (RoHS3 and REACH Unaffected status), supporting long-term supply chain viability.

Frequently Asked Questions (FAQ)

Q: Can the 744901027 directly replace the CML0510-2N7-CNH in all applications?

A: Direct replacement is limited by three factors: reduced current rating (440 mA vs. 600 mA), increased DC resistance (300 mOhm vs. 160 mOhm), and unshielded versus shielded construction. Applications operating below 440 mA with acceptable power dissipation and no shielding requirements may use this substitute. Higher current or shielded applications require alternative solutions.

Q: What is the impact of the higher DC resistance in the substitute part?

A: Increased DCR results in higher resistive losses (I²R) at operating current. At 440 mA, the substitute dissipates approximately 58.1 mW compared to 31.4 mW in the original part. This affects thermal management and circuit efficiency.

Q: Does the unshielded design of the substitute affect electromagnetic compatibility?

A: Unshielded inductors exhibit greater electromagnetic field radiation and susceptibility to external fields. Applications requiring EMI suppression or operating in electromagnetically noisy environments should retain shielded inductor specifications.

Q: Are both parts compatible with the same PCB footprint?

A: Yes. Both components use the 0402 (1005 Metric) package with identical external dimensions (0.039" L × 0.020" W / 1.00 mm × 0.50 mm). Height differences (0.50 mm vs. 0.40 mm seated) are within typical PCB assembly tolerances.

Q: What is the difference in inductance tolerance between these parts?

A: The substitute part offers tighter tolerance (±0.1 nH vs. ±0.2 nH). This provides improved inductance consistency but does not affect substitution eligibility for applications designed to the original tolerance specification.