CPL2512TR68M Equivalent & Substitute Parts

Part Overview

The CPL2512TR68M is a 680 nH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 1.4 A continuous current with 77 mOhm DC resistance. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part features surface mount packaging in a nonstandard 2.50mm × 1.50mm form factor with ferrite core construction and unlimited moisture sensitivity rating.

Substiute Parts

CPL2512TR68M

TDK CorporationIn Stock: 771CPL2512TR68M Datasheet

Current PartRFQ

VLS252010ET-R68N

TDK CorporationIn Stock: 2176VLS252010ET-R68N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The VLS252010ET-R68N qualifies as a direct substitute for the CPL2512TR68M based on the following critical parameters:

Matching Parameters:

• Inductance value: 680 nH (identical)
• Core material: Ferrite (identical)
• Shielding: Shielded (identical)
• Operating temperature range: -40°C to 105°C (identical)
• Mounting type: Surface Mount (identical)
• Moisture sensitivity level: 1 (Unlimited) (identical)

Allowable Variations:

• Current rating: 2.05 A (substitute) vs. 1.4 A (main part) — higher rating provides operational margin
• DC resistance: 62 mOhm Max (substitute) vs. 77 mOhm (main part) — lower resistance is acceptable
• Inductance tolerance: ±30% (substitute) vs. ±20% (main part) — wider tolerance is acceptable for equivalent functionality
• Package form factor: 1008 (2520 Metric) (substitute) vs. Nonstandard (main part) — standardized package improves availability

Parameter Comparison

Engineering Selection Recommendations

The VLS252010ET-R68N is the manufacturer-recommended substitute for the obsolete CPL2512TR68M. Selection of this substitute is justified on the following basis:

Product Status Consideration: The CPL2512TR68M is classified as obsolete, eliminating it as a viable option for new procurement. The VLS252010ET-R68N, while marked "Not For New Designs," remains available in production quantities (2100 pcs in stock vs. 741 pcs for the main part) and provides a direct functional replacement.

Compliance and Certification: The VLS252010ET-R68N carries ROHS3 compliance certification, meeting current regulatory requirements for electronic components in restricted substance directives. Both parts maintain REACH Unaffected status and EAR99 export classification.

Electrical Performance: The substitute part exceeds the electrical requirements of the main part. The 2.05 A current rating and 2.05 A saturation current provide operational headroom above the 1.4 A requirement. The 62 mOhm maximum DC resistance is lower than the 77 mOhm specification, reducing power dissipation in the circuit.

Physical Compatibility: The substitute uses a standardized 1008 (2520 Metric) package versus the nonstandard form factor of the main part. The width increases from 1.50mm to 2.00mm, and the seated height decreases from 1.20mm to 1.00mm. PCB layout verification is required to confirm physical fit within the available space.

Frequently Asked Questions (FAQ)

Q: Can the VLS252010ET-R68N be used as a direct drop-in replacement for the CPL2512TR68M?

A: Electrical substitution is valid. The VLS252010ET-R68N meets or exceeds all critical electrical parameters: identical 680 nH inductance, higher current rating (2.05 A vs. 1.4 A), and lower DC resistance (62 mOhm vs. 77 mOhm). Physical compatibility requires PCB layout verification due to package form factor differences (width: 2.50 × 2.00mm vs. 2.50 × 1.50mm).

Q: What are the key differences in inductance tolerance between these parts?

A: The CPL2512TR68M specifies ±20% inductance tolerance, while the VLS252010ET-R68N specifies ±30%. Both parts are rated at 680 nH nominal inductance. The wider tolerance of the substitute part is acceptable for equivalent circuit functionality in applications where the original ±20% tolerance was not a critical design constraint.

Q: Why is the substitute part marked "Not For New Designs" if it is the recommended equivalent?

A: The "Not For New Designs" status indicates that TDK Corporation is transitioning this product line. However, it remains the manufacturer-recommended substitute for the obsolete CPL2512TR68M and is available in production quantities. For new designs, consultation with TDK for next-generation alternatives may be appropriate, but for legacy system maintenance and existing production runs, the VLS252010ET-R68N is the specified equivalent.

Q: Are there any thermal or frequency-related differences between these inductors?

A: Both parts operate across the identical temperature range of -40°C to 105°C. The VLS252010ET-R68N specifies inductance measurement at 1 MHz test frequency. Self-resonant frequency and Q factor specifications are not provided for either part in the available data.

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

A: The VLS252010ET-R68N exhibits 62 mOhm maximum DC resistance compared to 77 mOhm for the CPL2512TR68M. Lower DC resistance reduces I²R power dissipation in the inductor, resulting in lower operating temperature and improved efficiency. This is a beneficial characteristic for circuit performance.