VLS252010T-R68N Equivalent & Substitute Parts

Part Overview

The VLS252010T-R68N is a 680 nH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 2 A continuous current with a maximum DC resistance of 64 mOhm. This component is designed for surface mount applications in the 1008 (2520 Metric) package format. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing production and design continuity.

Substiute Parts

VLS252010T-R68N

TDK CorporationIn Stock: 1065VLS252010T-R68N Datasheet

Current PartRFQ

VLS252010CX-R68M-1

TDK CorporationIn Stock: 2976VLS252010CX-R68M-1 Datasheet

MFR RecommendedRFQ

TYS252010LR68N-10

Laird-Signal Integrity ProductsIn Stock: 1145TYS252010LR68N-10 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VLS252010T-R68N is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 680 nH (exact match required)
• Shielding type: Shielded (electromagnetic containment requirement)
• Mounting type: Surface Mount (assembly compatibility)
• Package dimensions: 1008 (2520 Metric) or equivalent physical footprint (2.50mm L × 2.00mm W × 1.00mm H max)
• RoHS compliance: ROHS3 Compliant (regulatory requirement)

Secondary Compatibility Parameters:

• Current rating: Minimum 2 A (equal or higher acceptable)
• DC resistance: Maximum 64 mOhm (lower values acceptable; higher values require circuit validation)
• Tolerance: ±30% or tighter (tighter tolerances acceptable)
• Operating temperature range: Minimum -40°C ~ 105°C (wider ranges acceptable)

The two substitute parts identified meet these criteria with variations in current rating, DC resistance, and tolerance specifications that remain within acceptable engineering margins for this component category.

Parameter Comparison

Engineering Selection Recommendations

VLS252010CX-R68M-1 (TDK Corporation): This substitute offers improved electrical performance with higher current rating (2.62 A vs. 2 A) and lower DC resistance (50 mOhm vs. 64 mOhm). The tighter tolerance (±20% vs. ±30%) provides enhanced inductance accuracy. The part maintains identical physical dimensions and operating temperature range. Product status is active with established supply availability. ROHS3 compliance and MSL 1 rating match the original specification. The nonstandard package designation requires verification of PCB footprint compatibility despite matching physical dimensions.

TYS252010LR68N-10 (Laird-Signal Integrity Products): This substitute maintains electrical parity with the original part (2 A current rating, ±30% tolerance) while providing extended operating temperature range (-40°C ~ 125°C vs. -40°C ~ 105°C). DC resistance is slightly higher at 74 mOhm maximum, which may introduce marginal additional losses in current-limited applications. Physical dimensions and package format (1008/2520 Metric) are identical. Product status is active with documented supply. ROHS3 compliance and MSL 1 rating are maintained. Self-resonant frequency specification (138 MHz) is provided, supporting high-frequency circuit analysis.

Both substitutes are ROHS3 compliant and maintain MSL 1 rating, ensuring regulatory and environmental compatibility with the original component.

Frequently Asked Questions (FAQ)

Q: Can VLS252010CX-R68M-1 be used as a direct replacement for VLS252010T-R68N?

A: VLS252010CX-R68M-1 meets all critical substitution parameters: identical 680 nH inductance, shielded construction, surface mount configuration, and matching physical dimensions (2.50mm × 2.00mm × 1.00mm). The higher current rating (2.62 A) and lower DC resistance (50 mOhm) represent performance improvements. Verification of PCB footprint compatibility is required due to the nonstandard package designation, despite matching physical dimensions.

Q: What is the impact of the higher DC resistance in TYS252010LR68N-10?

A: TYS252010LR68N-10 specifies 74 mOhm maximum DC resistance compared to 64 mOhm in the original part. This 10 mOhm difference results in approximately 15.6% higher resistive losses at rated current (2 A). In applications where thermal management or efficiency is critical, circuit-level validation is necessary to confirm acceptable performance margins.

Q: Are the physical dimensions truly identical across all three parts?

A: All three parts share identical physical dimensions: 0.098" length × 0.079" width (2.50mm × 2.00mm) with maximum seated height of 0.039" (1.00mm). PCB footprint compatibility is therefore assured from a dimensional standpoint. The nonstandard package designation for VLS252010CX-R68M-1 refers to supplier packaging format rather than component physical dimensions.

Q: Which substitute offers the best performance upgrade?

A: VLS252010CX-R68M-1 provides the most significant performance improvement with 31% higher current rating (2.62 A vs. 2 A) and 21.9% lower DC resistance (50 mOhm vs. 64 mOhm). Additionally, the ±20% tolerance provides superior inductance accuracy compared to the original ±30% specification. These improvements support higher current applications and reduce thermal dissipation.

Q: Do both substitutes maintain the same operating temperature range?

A: VLS252010CX-R68M-1 maintains the identical operating temperature range (-40°C ~ 105°C). TYS252010LR68N-10 extends the upper temperature limit to 125°C, providing 20°C additional thermal headroom. For applications operating near the upper temperature boundary, TYS252010LR68N-10 offers enhanced thermal margin.

Q: Are there any supply or availability considerations?

A: The original VLS252010T-R68N is classified as obsolete. Both substitutes maintain active product status with documented inventory availability: VLS252010CX-R68M-1 (2877 pcs) and TYS252010LR68N-10 (1129 pcs). Active status ensures continued supply and technical support from manufacturers.