ELL-ATV180M Equivalent & Substitute Parts

Part Overview

The Panasonic ELL-ATV180M is an 18 µH shielded drum core, wirewound inductor rated for 2.5 A with 38mOhm DC resistance. This surface mount component is designed for applications requiring fixed inductance in compact form factors. The part is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, production continuity, and component sourcing.

Substiute Parts

ELL-ATV180M

Panasonic Electronic ComponentsIn Stock: 775ELL-ATV180M Datasheet

Current PartRFQ

744066180

Würth ElektronikIn Stock: 2330744066180 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELL-ATV180M is determined by the following critical parameters:

• Inductance Value: Must be 18 µH at 100 kHz test frequency
• Current Rating: Must meet or exceed 2.5 A continuous rating
• DC Resistance: Must not significantly exceed the original 38mOhm specification to avoid thermal and efficiency penalties
• Shielding: Must maintain shielded construction to preserve EMI performance
• Core Material: Ferrite core construction required
• Mounting Type: Surface mount configuration mandatory
• Physical Footprint: 10.00mm x 10.00mm base dimensions with height compatibility
• Compliance: ROHS3 compliance required for regulatory alignment

The Würth Elektronik 744066180 qualifies as a functional substitute based on matching inductance, shielding, core material, mounting type, and physical footprint within acceptable tolerance ranges.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 744066180 is suitable as a substitute for the obsolete Panasonic ELL-ATV180M based on the following factors:

Compliance & Availability: The 744066180 maintains ROHS3 compliance and active product status, ensuring long-term availability and regulatory alignment. The original part's obsolete status necessitates transition to an active alternative.

Electrical Compatibility: Both parts share identical 18 µH inductance at 100 kHz test frequency. The substitute's higher current rating (2.8 A vs. 2.5 A) and saturation current specification (3 A) provide operational margin. The increased DCR (68mOhm max vs. 38mOhm) represents a trade-off that must be evaluated against thermal and efficiency requirements in the specific application circuit.

Physical & Mechanical Compatibility: Identical base footprint (10.00mm x 10.00mm) and compatible height (4.10mm vs. 4.50mm max) ensure PCB layout compatibility without redesign. Both parts use surface mount packaging with ferrite shielded drum core construction.

Tolerance Considerations: The substitute's ±30% inductance tolerance is wider than the original ±20%. Applications with tight inductance specifications may require circuit validation or component selection.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 744066180 directly replace the Panasonic ELL-ATV180M without circuit modification?

A: Physical and electrical compatibility is confirmed for identical inductance value and shielding. However, the increased DCR (68mOhm max vs. 38mOhm) will increase resistive losses. Thermal analysis of the specific application is required to confirm acceptability. The wider inductance tolerance (±30% vs. ±20%) may require validation in circuits with tight inductance specifications.

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

A: Higher DCR increases I²R losses and heat generation. For a 2.5 A application, the additional loss is approximately 0.156 W (compared to 0.095 W in the original). Thermal management and efficiency impact must be assessed for the target application.

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

A: Yes. Both parts share identical 10.00mm x 10.00mm footprints and surface mount configuration. The substitute's lower seated height (4.10mm vs. 4.50mm) provides additional clearance margin.

Q: What compliance certifications apply to both parts?

A: Both the ELL-ATV180M and 744066180 are ROHS3 compliant with MSL rating 1 (unlimited moisture sensitivity level). Both carry EAR99 ECCN classification and 8504.50.4000 HTSUS code.

Q: Is the substitute part available in the same packaging format?

A: The substitute is supplied in Tape & Reel (TR) packaging, which is standard for production environments. The original part packaging format is not specified in available data.