VLS252015T-100MR66 Equivalent & Substitute Parts

Part Overview

The VLS252015T-100MR66 is a 10 µH shielded wirewound inductor manufactured by TDK Corporation, rated for 660 mA continuous current with a maximum DC resistance of 588 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. Substitute parts must maintain electrical equivalence across inductance value, current rating, and DC resistance specifications while accommodating available packaging and core material variations.

Key Parameters

Parameter	Value
Inductance	10 µH
Tolerance	±20%
Current Rating (Amps)	660 mA
DC Resistance (DCR) Max	588 mOhm
Shielding	Shielded
Operating Temperature Range	-40°C ~ 105°C
Mounting Type	Surface Mount
Package / Case	1008 (2520 Metric)
Physical Dimensions	0.098" L x 0.079" W (2.50mm x 2.00mm)
Height - Seated (Max)	0.039" (1.00mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the VLS252015T-100MR66 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

Inductance value: 10 µH (matching tolerance ±20%)
Current rating: minimum 660 mA continuous
DC resistance: maximum 588 mOhm
Shielding: shielded construction required
Operating temperature range: -40°C ~ 105°C minimum

Mechanical & Packaging Requirements:

Surface mount configuration
Physical footprint: 2.50mm x 2.00mm maximum length and width
Height: 1.00mm maximum seated height
Package compatibility with 1008 (2520 Metric) footprint

Compliance Requirements:

ROHS3 compliance
MSL rating of 1 or better

The substitute part VLS252010CX-100M-1 meets all electrical and mechanical criteria for direct substitution, with variations in core material (drum core ferrite vs. standard wirewound) and packaging format (tape & reel vs. bulk) that do not affect functional performance in the specified application.

Parameter Comparison

Parameter	VLS252015T-100MR66 (Main Part)	VLS252010CX-100M-1 (Substitute)
Manufacturer	TDK Corporation	TDK Corporation
Inductance	10 µH	10 µH
Tolerance	±20%	±20%
Current Rating (Amps)	660 mA	710 mA
DC Resistance (DCR) Max	588 mOhm	580 mOhm
Shielding	Shielded	Shielded
Operating Temperature Range	-40°C ~ 105°C	-40°C ~ 105°C
Mounting Type	Surface Mount	Surface Mount
Physical Dimensions	0.098" L x 0.079" W (2.50mm x 2.00mm)	0.098" L x 0.079" W (2.50mm x 2.00mm)
Height - Seated (Max)	0.039" (1.00mm)	0.039" (1.00mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active
Packaging Format	Bulk	Tape & Reel (TR)

Engineering Selection Recommendations

The VLS252010CX-100M-1 is a direct functional equivalent to the obsolete VLS252015T-100MR66. Both components are manufactured by TDK Corporation and maintain identical electrical specifications for inductance, tolerance, and operating temperature range. The substitute part provides superior current rating (710 mA vs. 660 mA) and lower DC resistance (580 mOhm vs. 588 mOhm), representing improved performance characteristics within the same physical footprint.

Both parts maintain ROHS3 compliance and MSL rating of 1, ensuring compatibility with standard manufacturing and storage requirements. The substitute part is currently in active production status, providing supply continuity and long-term availability advantages over the obsolete main part.

The primary difference between the two components is the core material construction (drum core ferrite in the substitute vs. standard wirewound in the main part) and packaging format (tape & reel vs. bulk). These differences do not affect electrical performance or mechanical compatibility in surface mount applications.

Frequently Asked Questions (FAQ)

Q: Can VLS252010CX-100M-1 be used as a direct replacement for VLS252015T-100MR66?

A: Yes. Both components share identical inductance (10 µH), tolerance (±20%), operating temperature range (-40°C ~ 105°C), physical dimensions (2.50mm x 2.00mm), and height (1.00mm). The substitute part meets or exceeds all electrical specifications of the main part.

Q: What are the differences between these two inductors?

A: The VLS252010CX-100M-1 features a drum core ferrite construction compared to the standard wirewound design of the VLS252015T-100MR66. The substitute part offers higher current rating (710 mA vs. 660 mA) and lower DC resistance (580 mOhm vs. 588 mOhm). Packaging differs: the substitute is supplied in tape & reel format while the main part is bulk packaged.

Q: Are there any PCB layout or footprint considerations when switching to the substitute part?

A: No. Both components maintain identical physical dimensions and the same 1008 (2520 Metric) footprint. PCB layouts designed for the VLS252015T-100MR66 require no modification to accommodate the VLS252010CX-100M-1.

Q: Does the substitute part meet the same compliance standards?

A: Yes. Both components are ROHS3 compliant with MSL rating of 1 (Unlimited), meeting identical environmental and regulatory requirements.

Q: What is the advantage of selecting the substitute part?

A: The VLS252010CX-100M-1 is in active production status, ensuring reliable long-term supply availability. The obsolete VLS252015T-100MR66 presents supply risk and potential cost escalation. The substitute part also provides improved electrical performance with higher current rating and lower DC resistance.

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