ELL-CTV2R7N Equivalent & Substitute Parts

Part Overview

The ELL-CTV2R7N is a 2.7 µH shielded drum core wirewound inductor manufactured by Panasonic Electronic Components, rated for 5.7 A continuous current with 7 mOhm DC resistance. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. Substitute parts must maintain the same inductance value, core type, shielding characteristics, and surface mount compatibility while meeting or exceeding the electrical performance requirements of the original specification.

Substiute Parts

ELL-CTV2R7N

Panasonic Electronic ComponentsIn Stock: 916ELL-CTV2R7N Datasheet

Current PartRFQ

NS12575T2R7NN

Taiyo YudenIn Stock: 2994NS12575T2R7NN Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELL-CTV2R7N is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 2.7 µH (±30% tolerance band)
• Core material and type: Ferrite drum core, wirewound construction
• Shielding requirement: Shielded configuration
• Mounting technology: Surface mount
• Current rating: Equal to or greater than 5.7 A
• DC resistance: Equal to or less than 7 mOhm (lower DCR preferred for thermal performance)
• Physical compatibility: Footprint and height suitable for the original mounting location
• Compliance: ROHS3 compliant, MSL 1 rating

The NS12575T2R7NN from Taiyo Yuden meets all primary substitution criteria, offering improved current handling (7.69 A) and saturation current specification (13.91 A) while maintaining the required inductance and core characteristics. The higher DC resistance (10.2 mOhm max) represents a minor trade-off offset by superior current capacity and availability.

Parameter Comparison

Engineering Selection Recommendations

The NS12575T2R7NN represents the qualified substitute for the obsolete ELL-CTV2R7N based on the following engineering factors:

Electrical Compatibility: Both components share identical inductance values (2.7 µH) and tolerance specifications (±30%), ensuring circuit performance equivalence at the design frequency of 100 kHz. The substitute's higher current rating (7.69 A vs. 5.7 A) and saturation current specification (13.91 A) provide enhanced margin for transient conditions and thermal stability.

Compliance and Certification: Both parts maintain ROHS3 compliance and MSL 1 moisture sensitivity ratings, satisfying environmental and reliability requirements for industrial and commercial applications.

Physical Considerations: The NS12575T2R7NN exhibits slightly larger footprint dimensions (12.50 × 12.50 mm vs. 12.00 × 12.00 mm) and greater height (7.85 mm vs. 4.50 mm). PCB layout verification is required to confirm mechanical fit within the original mounting location.

Availability and Status: While the substitute carries a "Not For New Designs" designation, it remains in active inventory (2912 pcs available) compared to the obsolete status of the original part, providing immediate procurement viability for legacy system support and field replacements.

Frequently Asked Questions (FAQ)

Q: Can the NS12575T2R7NN be used as a direct replacement for the ELL-CTV2R7N?

A: The NS12575T2R7NN is electrically equivalent for applications requiring 2.7 µH inductance at 100 kHz test frequency. Physical dimensions differ; PCB layout must accommodate the larger footprint (12.50 × 12.50 mm) and increased height (7.85 mm). Mechanical clearance verification is mandatory before implementation.

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

A: The NS12575T2R7NN exhibits 10.2 mOhm maximum DCR compared to 7 mOhm in the original. This 3.2 mOhm increase results in proportionally higher resistive losses. For applications with continuous current operation near the 5.7 A rating, thermal analysis is required to confirm acceptable temperature rise within system constraints.

Q: Are both parts suitable for new design applications?

A: The ELL-CTV2R7N is classified as obsolete and unsuitable for new designs. The NS12575T2R7NN carries a "Not For New Designs" status, indicating limited long-term availability. For new product development, consultation with component suppliers is recommended to identify actively supported alternatives with extended lifecycle commitments.

Q: What are the key parameters that must match for substitution?

A: Substitution requires matching inductance value (2.7 µH), inductance tolerance (±30%), core type (ferrite drum core, wirewound), shielding configuration (shielded), and mounting technology (surface mount). Current rating and DC resistance must meet or exceed the original specification. Physical dimensions must fit the PCB layout.

Q: How do the saturation current specifications compare?

A: The original ELL-CTV2R7N does not specify saturation current. The NS12575T2R7NN provides a saturation current rating of 13.91 A, offering defined performance limits for transient current conditions. This specification enables more precise circuit analysis for applications subject to current spikes or fault conditions.