ELL-CTV100M Equivalent & Substitute Parts

Part Overview

The ELL-CTV100M is a 10 µH shielded drum core wirewound inductor manufactured by Panasonic Electronic Components, rated for 3.9 A continuous current with 17mOhm DC resistance. This component operates at a test frequency of 100 kHz and is packaged in a nonstandard surface mount configuration measuring 12.00mm × 12.00mm × 4.50mm (max height). The part carries an Obsolete product status, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity.

Substiute Parts

ELL-CTV100M

Panasonic Electronic ComponentsIn Stock: 1069ELL-CTV100M Datasheet

Current PartRFQ

74477110

Würth ElektronikIn Stock: 419674477110 Datasheet

SimilarRFQ

SLF10165T-100M3R83PF

TDK CorporationIn Stock: 28588SLF10165T-100M3R83PF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELL-CTV100M are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Inductance Value: Must be 10 µH with ±20% tolerance
• Core Type & Shielding: Ferrite core with shielding required
• Current Rating: Minimum 3.9 A continuous rating
• DC Resistance: Maximum acceptable DCR aligned with application requirements
• Mounting & Package: Surface mount, nonstandard drum core configuration
• Compliance: ROHS3 compliance maintained

The identified substitute parts meet these core electrical requirements while maintaining the same inductance specification and shielding characteristics necessary for electromagnetic compatibility in the original application.

Parameter Comparison

Engineering Selection Recommendations

74477110 (Würth Elektronik WE-PD Series)

This substitute offers the most favorable characteristics for direct replacement. The part maintains identical inductance and tolerance specifications with a higher current rating of 5 A, providing design margin above the original 3.9 A requirement. The Active product status ensures long-term availability and supply chain stability. AEC-Q200 automotive qualification provides additional reliability assurance. The increased DCR of 25mOhm (versus 17mOhm original) must be evaluated against thermal and efficiency constraints in the target application. Physical dimensions match the original footprint (12.00mm × 12.00mm), though seated height increases to 6.00mm. ROHS3 compliance and unlimited MSL rating maintain environmental and manufacturing compatibility.

SLF10165T-100M3R83PF (TDK SLF Series)

This substitute maintains electrical compatibility with a current rating of 3.8 A, closely matching the original 3.9 A specification. The Not For New Designs status indicates this part is in transition and may face future availability constraints. The DCR of 22.2mOhm represents a moderate increase from the original 17mOhm. Physical dimensions differ with a smaller footprint (10.10mm × 10.10mm) and greater seated height (6.80mm), requiring PCB layout verification. Operating temperature range of -40°C to 105°C is narrower than the Würth alternative. ROHS3 compliance and unlimited MSL rating are maintained. This option is suitable for existing designs but not recommended for new development.

Frequently Asked Questions (FAQ)

Q: Can the 74477110 be used as a direct replacement for the ELL-CTV100M?

A: Yes, the 74477110 maintains the same 10 µH inductance, ±20% tolerance, ferrite core, shielding, and surface mount configuration. The higher current rating (5 A vs. 3.9 A) and increased DCR (25mOhm vs. 17mOhm) must be evaluated for thermal performance and efficiency in your specific application. Physical footprint is identical at 12.00mm × 12.00mm, though height increases from 4.50mm to 6.00mm.

Q: What is the primary difference between the two substitute parts?

A: The 74477110 offers higher current capacity (5 A) with Active product status and AEC-Q200 qualification, making it suitable for new designs. The SLF10165T-100M3R83PF provides closer current matching (3.8 A) but carries Not For New Designs status and a smaller footprint (10.10mm × 10.10mm), which may require PCB layout changes.

Q: Does the increased DCR in substitute parts affect performance?

A: The DCR increase from 17mOhm to 22.2-25mOhm will result in higher resistive losses and heat generation under load. The impact depends on your application's current profile and thermal budget. For the 74477110 at 5 A, power dissipation increases from 0.34W to 0.625W. Thermal analysis is required to confirm acceptability.

Q: Are there physical compatibility concerns with these substitutes?

A: The 74477110 matches the original footprint (12.00mm × 12.00mm) but increases height to 6.00mm (versus 4.50mm original). The SLF10165T-100M3R83PF uses a smaller footprint (10.10mm × 10.10mm) with greater height (6.80mm), requiring PCB layout verification and potential rework of surrounding components.

Q: What is the significance of product status in selecting a substitute?

A: The 74477110 (Active status) ensures continued manufacturing and supply availability. The SLF10165T-100M3R83PF (Not For New Designs) indicates the manufacturer is phasing out this part, creating potential long-term supply risk. For production continuity, the Active status part is preferred.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all three parts—the original ELL-CTV100M and both substitutes (74477110 and SLF10165T-100M3R83PF)—carry ROHS3 Compliant status with unlimited MSL rating, maintaining environmental and manufacturing compatibility.