CPL2512TR22M Equivalent & Substitute Parts

Part Overview

The CPL2512TR22M is a 220 nH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 2 A continuous current with 42 mOhm DC resistance. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The part operates across the industrial temperature range of -40°C to 105°C and is packaged in a nonstandard surface mount configuration measuring 2.50mm × 1.50mm.

Substiute Parts

CPL2512TR22M

TDK CorporationIn Stock: 817CPL2512TR22M Datasheet

Current PartRFQ

NLCV25T-R22M-EFR

TDK CorporationIn Stock: 2123NLCV25T-R22M-EFR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CPL2512TR22M is determined by the following critical parameters:

• Inductance Value: 220 nH (fixed requirement)
• Inductance Tolerance: ±20% (defines acceptable variation range)
• Core Material: Ferrite (electrical performance baseline)
• Operating Temperature Range: -40°C to 105°C (environmental compatibility)
• Mounting Type: Surface Mount (assembly compatibility)
• Current Handling: Minimum 2 A continuous rating required for equivalent performance

The NLCV25T-R22M-EFR meets the inductance, tolerance, core material, temperature range, and mounting requirements. However, this substitute exhibits a reduced current rating of 1.69 A and increased DC resistance of 60 mOhm maximum, representing a functional trade-off in thermal performance and power dissipation characteristics. The substitute transitions from shielded to unshielded construction, affecting electromagnetic interference (EMI) containment properties.

Parameter Comparison

Engineering Selection Recommendations

The NLCV25T-R22M-EFR is the manufacturer-recommended substitute for the obsolete CPL2512TR22M. Both components are manufactured by TDK Corporation and maintain identical inductance values, tolerance specifications, core materials, and operating temperature ranges. The substitute part carries active product status, ensuring long-term availability and supply chain continuity.

Selection of the NLCV25T-R22M-EFR requires evaluation of application-specific constraints:

• Current Derating: The substitute's 1.69 A rating represents a 15.5% reduction from the original 2 A specification. Applications operating at or near the original current limit require thermal analysis to confirm acceptable performance margins.
• DC Resistance Impact: The 60 mOhm maximum DCR of the substitute exceeds the original 42 mOhm specification by 43%. This increase directly affects power dissipation and thermal behavior in high-current applications.
• Shielding Transition: Migration from shielded to unshielded construction may impact EMI performance in noise-sensitive circuits. Circuit-level EMI assessment is necessary for applications with stringent electromagnetic compatibility requirements.
• Package Geometry: The substitute utilizes the standardized 1008 (2520 Metric) package with increased height (1.90mm vs. 1.20mm), requiring verification of PCB layout and mechanical clearance compatibility.

Both parts maintain REACH compliance and MSL 1 moisture sensitivity ratings, supporting standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the NLCV25T-R22M-EFR directly replace the CPL2512TR22M without circuit modification?

A: Direct replacement is possible only when application current requirements do not exceed 1.69 A and the increased DC resistance (60 mOhm vs. 42 mOhm) does not create unacceptable thermal or power dissipation conditions. The transition from shielded to unshielded construction requires EMI assessment for noise-sensitive applications. Package geometry differences necessitate PCB layout verification.

Q: What are the electrical implications of the increased DC resistance in the substitute part?

A: The 43% increase in DC resistance (from 42 mOhm to 60 mOhm maximum) results in proportionally higher resistive losses at equivalent current levels. Power dissipation increases according to P = I²R. At 1.69 A, the substitute dissipates approximately 171 mW compared to 120 mW for the original part at 2 A, representing a 42% increase in thermal load.

Q: Does the unshielded construction of the substitute affect circuit performance?

A: Unshielded inductors exhibit reduced electromagnetic field containment compared to shielded designs. Applications requiring isolation from external magnetic fields or minimization of radiated EMI may experience performance degradation. Circuit-level EMI testing is recommended for sensitive applications.

Q: Are there package compatibility concerns when substituting these parts?

A: Yes. The original CPL2512TR22M uses a nonstandard 2.50mm × 1.50mm package, while the substitute NLCV25T-R22M-EFR uses the standardized 1008 (2520 Metric) package measuring 2.50mm × 2.00mm with 1.90mm maximum height. PCB footprint, trace routing, and mechanical clearance must be re-evaluated for the substitute geometry.

Q: What is the current availability status of both parts?

A: The CPL2512TR22M is classified as obsolete with 723 pieces in current inventory. The NLCV25T-R22M-EFR is active production with 2,100 pieces in inventory, providing superior long-term supply chain security and procurement continuity.

Q: Are both parts compliant with current regulatory standards?

A: Both components are REACH unaffected and classified under ECCN EAR99 and HTSUS 8504.50.8000. The substitute carries RoHS3 compliance certification. Both maintain MSL 1 moisture sensitivity ratings, supporting standard manufacturing protocols.