ELL-CTV150M Equivalent & Substitute Parts

Part Overview

The ELL-CTV150M is a 15 µH shielded drum core, wirewound inductor manufactured by Panasonic Electronic Components. Designed for surface mount applications, this component delivers 3.1 A current rating with 25mOhm DC resistance in a compact 12.00mm x 12.00mm footprint. The part carries obsolete product status, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

ELL-CTV150M

Panasonic Electronic ComponentsIn Stock: 886ELL-CTV150M Datasheet

Current PartRFQ

SRR1240-150M

Bourns Inc.In Stock: 2812SRR1240-150M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELL-CTV150M is determined by the following critical parameters:

• Inductance Value: 15 µH (±20% tolerance band)
• Current Rating: Minimum 3.1 A continuous capability
• DC Resistance: Maximum acceptable DCR for circuit performance
• Core Material & Shielding: Ferrite, shielded construction to maintain electromagnetic isolation
• Mounting Type: Surface mount configuration
• Package Footprint Compatibility: Physical dimensions must accommodate board layout constraints
• Frequency Characteristics: Operation at 100 kHz test frequency
• Compliance Standards: ROHS3 compliance and MSL rating

The SRR1240-150M from Bourns Inc. meets these substitution criteria through matching inductance specification, exceeding current rating requirements, and maintaining equivalent core construction and shielding characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SRR1240-150M qualifies as a direct functional equivalent to the ELL-CTV150M based on matching inductance specification, identical tolerance band, and equivalent core construction. The substitute component exceeds the original current rating (4.6 A vs. 3.1 A), providing design margin for thermal and electrical stress conditions.

Two parameters require circuit-level evaluation:

DC Resistance Differential: The SRR1240-150M exhibits 47mOhm maximum DCR compared to the original 25mOhm specification. This 22mOhm increase will generate additional resistive losses in the inductor. Calculate power dissipation at maximum operating current to confirm thermal performance remains within design limits.

Physical Footprint: The SRR1240-150M occupies a 12.50mm x 12.50mm footprint versus the original 12.00mm x 12.00mm. Verify PCB layout accommodates the 0.50mm dimensional increase in both length and width directions.

The SRR1240-150M carries active product status with ROHS3 compliance and unlimited MSL rating, ensuring long-term procurement availability and environmental regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can the SRR1240-150M directly replace the ELL-CTV150M without circuit modification?

A: Electrical substitution is valid for applications where the 22mOhm DCR increase does not exceed thermal or efficiency budgets. Physical substitution requires PCB layout verification due to the 0.50mm dimensional increase. No circuit topology changes are necessary.

Q: What is the impact of higher DC resistance on circuit performance?

A: Increased DCR generates additional I²R losses. At 3.1 A continuous current, the SRR1240-150M dissipates approximately 0.45 mW more than the original component. Evaluate thermal management and efficiency requirements for your specific application.

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

A: The SRR1240-150M requires a slightly larger pad pattern (12.50mm x 12.50mm vs. 12.00mm x 12.00mm). Existing PCB designs must be reviewed for clearance and routing constraints. Height specifications (4.50mm) are identical.

Q: What certifications and compliance standards apply to the substitute part?

A: The SRR1240-150M meets ROHS3 compliance requirements and carries MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original component's environmental and regulatory qualifications.

Q: Is the SRR1240-150M available for immediate procurement?

A: Yes. The SRR1240-150M carries active product status with 2728 pieces in current inventory, providing supply continuity for the obsolete ELL-CTV150M.