CMLB063T-R47MS Equivalent & Substitute Parts

Part Overview

The CMLB063T-R47MS is a 470 nH shielded inductor manufactured by Delta Electronics/Cyntec, rated for 18 A continuous current with a maximum DC resistance of 4.1 mOhm. This surface mount component is designed for high-current applications requiring low inductance values with controlled impedance characteristics. The part is currently in active production status with full RoHS3 compliance and 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 for current handling, inductance accuracy, and thermal operating range.

Substiute Parts

CMLB063T-R47MS

Delta Electronics/CyntecIn Stock: 916CMLB063T-R47MS Datasheet

Current PartRFQ

PA4341.471NLT

Pulse ElectronicsIn Stock: 1288PA4341.471NLT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMLB063T-R47MS is determined by the following critical parameters:

Electrical Equivalence Criteria:

• Inductance value of 470 nH within ±20% tolerance
• Current rating equal to or greater than 18 A
• DC resistance not exceeding 4.1 mOhm maximum
• Saturation current sufficient to support rated current without performance degradation

Physical & Environmental Criteria:

• Surface mount packaging compatible with nonstandard form factor
• Operating temperature range encompassing -55°C to 125°C
• Shielded construction to maintain electromagnetic isolation
• RoHS3 compliance for regulatory alignment

Compliance & Certification:

• Active product status ensuring continued availability
• Moisture sensitivity level MSL 1 (unlimited shelf life)
• REACH unaffected status

The PA4341.471NLT from Pulse Electronics meets these substitution criteria with equivalent inductance, comparable current handling, and compatible thermal specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (CMLB063T-R47MS): Use as the first choice for applications requiring the full -55°C to 125°C operating temperature range. The 18 A current rating and 4.1 mOhm maximum DC resistance provide specified performance margins for high-current switching and power distribution circuits.

Substitute Part (PA4341.471NLT): The PA4341.471NLT is suitable for applications where the operating temperature minimum of -40°C is acceptable. The 17.5 A current rating is 0.5 A lower than the primary part; this substitute is appropriate only when the application's maximum sustained current does not exceed 17.5 A. The marginally higher DC resistance (4.2 mOhm vs. 4.1 mOhm) results in approximately 2.4% additional power dissipation at rated current. Both parts carry AEC-Q200 automotive qualification and ROHS3 compliance, supporting equivalent regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can PA4341.471NLT replace CMLB063T-R47MS in all applications?

A: No. The substitute part has a lower current rating (17.5 A vs. 18 A) and a restricted lower operating temperature limit (-40°C vs. -55°C). Substitution is valid only when the application's maximum sustained current does not exceed 17.5 A and the minimum operating temperature is -40°C or higher.

Q: What is the impact of the 0.1 mOhm difference in DC resistance?

A: At 18 A, the additional resistance in PA4341.471NLT results in approximately 0.0018 W (1.8 mW) additional power dissipation compared to the primary part. This is typically negligible in most applications but should be evaluated in thermally constrained designs.

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

A: Both parts use nonstandard surface mount packages with identical seated heights (3.00 mm maximum). However, the PA4341.471NLT has slightly larger lateral dimensions (7.60 mm L × 6.90 mm W vs. 6.95 mm L × 6.60 mm W). PCB layout verification is required to confirm footprint compatibility.

Q: Do both parts have equivalent shelf life and storage requirements?

A: Yes. Both parts carry MSL 1 (unlimited moisture sensitivity level), indicating no moisture-related shelf life restrictions and no baking requirements prior to assembly.

Q: What certifications apply to both parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. The PA4341.471NLT additionally carries AEC-Q200 automotive qualification.