CPL2512TR15M Equivalent & Substitute Parts

Part Overview

The CPL2512TR15M is a 150 nH shielded drum core wirewound inductor manufactured by TDK Corporation, designed for surface mount applications requiring high current handling and low DC resistance. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The shielded construction and compact nonstandard package (2.50mm × 1.50mm) define its primary application space.

Substiute Parts

CPL2512TR15M

TDK CorporationIn Stock: 833CPL2512TR15M Datasheet

Current PartRFQ

NLCV25T-R15M-EFR

TDK CorporationIn Stock: 4125NLCV25T-R15M-EFR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CPL2512TR15M is based on the following electrical and mechanical parameters:

• Inductance Value: 150 nH (exact match required)
• Core Material: Ferrite drum core construction
• Tolerance: ±20%
• Operating Temperature: -40°C to 105°C
• Mounting: Surface mount, wirewound type
• Current Handling: Minimum 1.8 A rating acceptable for applications not requiring the full 2.2 A specification

The NLCV25T-R15M-EFR qualifies as a manufacturer-recommended substitute despite differences in shielding configuration and package dimensions. The substitute maintains the critical inductance value, core material, tolerance, and temperature range. The reduction in current rating (1.8 A vs. 2.2 A) and increase in DC resistance (52.8 mOhm vs. 34 mOhm) represent trade-offs acceptable in applications where the lower current specification is sufficient.

Parameter Comparison

Engineering Selection Recommendations

The NLCV25T-R15M-EFR is the manufacturer-recommended substitute for the obsolete CPL2512TR15M. Selection of this substitute is supported by:

• Product Status: The substitute is active and in production, ensuring long-term availability and supply chain stability.
• Regulatory Compliance: The NLCV25T-R15M-EFR is ROHS3 compliant, meeting current environmental standards.
• Electrical Equivalence: Both parts maintain 150 nH inductance, ±20% tolerance, and identical operating temperature range.
• Core Technology: Both utilize ferrite drum core wirewound construction.

Design considerations for substitution include the increase in DC resistance (52.8 mOhm vs. 34 mOhm) and reduction in current rating (1.8 A vs. 2.2 A). Applications operating at or near the 2.2 A specification of the original part require evaluation to confirm the 1.8 A rating is acceptable. The shift from shielded to unshielded construction may impact electromagnetic interference characteristics in sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can the NLCV25T-R15M-EFR be used as a direct replacement for the CPL2512TR15M?

A: The NLCV25T-R15M-EFR is the manufacturer-recommended substitute. Electrical substitution is valid for applications where the 1.8 A current rating is sufficient. Physical package dimensions differ (height increases from 1.20mm to 1.90mm), requiring PCB layout verification.

Q: What is the impact of the shielding difference?

A: The CPL2512TR15M is shielded; the NLCV25T-R15M-EFR is unshielded. Shielding reduces electromagnetic radiation and susceptibility. Applications requiring shielding performance must evaluate the unshielded substitute for compatibility with EMI/RFI specifications.

Q: How does the increased DC resistance affect circuit performance?

A: The substitute exhibits 52.8 mOhm maximum resistance compared to 34 mOhm in the original part. This 55% increase results in higher power dissipation at rated current. Thermal and efficiency analysis is required for applications sensitive to inductor losses.

Q: Are there package compatibility concerns?

A: The original part uses a nonstandard 2.50mm × 1.50mm package; the substitute uses the 1008 (2520 Metric) standard package at 2.50mm × 2.00mm. The width and height increase by 0.50mm and 0.70mm respectively. PCB footprint and clearance verification is necessary before implementation.

Q: What is the availability status of both parts?

A: The CPL2512TR15M is obsolete with 728 pieces in stock. The NLCV25T-R15M-EFR is active with 4084 pieces in stock, providing superior long-term supply assurance.