VLS252015T-4R7MR89 Equivalent & Substitute Parts

Part Overview

The VLS252015T-4R7MR89 is a 4.7 µH shielded wirewound inductor manufactured by TDK Corporation, rated for 890 mA continuous current with a maximum DC resistance of 318 mOhm. This surface mount component operates across the temperature range of -40°C to 105°C and is housed in a 1008 (2520 Metric) package.

The VLS252015T-4R7MR89 carries an Obsolete product status. Locating equivalent or substitute parts is necessary for ongoing production support, design revisions, or inventory replenishment where original stock is unavailable.

Key Parameters

Parameter	Value
Inductance	4.7 µH
Tolerance	±20%
Current Rating	890 mA
DC Resistance (Max)	318 mOhm
Shielding	Shielded
Operating Temperature	-40°C ~ 105°C
Package / Case	1008 (2520 Metric)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the VLS252015T-4R7MR89 are qualified based on the following electrical and mechanical parameters:

Inductance Value: 4.7 µH (exact match required)
Inductance Tolerance: ±20% (exact match required)
Current Rating: Minimum 890 mA (equal or higher acceptable)
DC Resistance: Maximum 318 mOhm (equal or lower acceptable)
Shielding: Shielded (required)
Operating Temperature Range: -40°C ~ 105°C (minimum requirement)
Package / Case: 1008 (2520 Metric) or equivalent footprint
Mounting Type: Surface Mount (required)
RoHS Compliance: ROHS3 Compliant (required)
Moisture Sensitivity Level: 1 (Unlimited) (required)

Substitutes must maintain compatibility across all listed parameters. Deviations in inductance value, tolerance, shielding, or environmental ratings disqualify a part from direct substitution.

Parameter Comparison

Parameter	VLS252015T-4R7MR89	VLS252015ET-4R7M	VLS252010CX-4R7M-1
Manufacturer	TDK Corporation	TDK Corporation	TDK Corporation
Series	VLS	VLS	VLS-CX-1
Inductance	4.7 µH	4.7 µH	4.7 µH
Tolerance	±20%	±20%	±20%
Current Rating (Amps)	890 mA	890 mA	1.11 A
Current - Saturation (Isat)	1.2 A	1 A	970 mA
DC Resistance (Max)	318 mOhm	318 mOhm	235 mOhm
Shielding	Shielded	Shielded	Shielded
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	1008 (2520 Metric)	1008 (2520 Metric)	Nonstandard
Size / Dimension	0.098" L x 0.079" W (2.50mm x 2.00mm)	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)	0.039" (1.00mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Not For New Designs	Active

Engineering Selection Recommendations

VLS252015ET-4R7M: This part maintains identical electrical specifications and package dimensions to the main part number. Both components are manufactured by TDK Corporation within the VLS series. The VLS252015ET-4R7M carries a "Not For New Designs" status, indicating limited future availability. This substitute is suitable for direct replacement in existing designs where inventory of the original part is exhausted, provided that production timelines do not extend beyond the component's lifecycle support window.

VLS252010CX-4R7M-1: This part meets all critical electrical parameters with improved performance characteristics. The current rating is increased to 1.11 A (compared to 890 mA), and DC resistance is reduced to 235 mOhm (compared to 318 mOhm maximum). The VLS252010CX-4R7M-1 carries an Active product status, ensuring long-term availability and supply chain stability. Physical dimensions remain compatible with the original package footprint. This substitute is recommended for new designs and ongoing production where component lifecycle continuity is a priority. The package designation is listed as Nonstandard, though the supplier device package and physical dimensions (2520 metric) align with the original specification.

Both substitutes maintain ROHS3 compliance, unlimited moisture sensitivity rating, and the required operating temperature range of -40°C to 105°C.

Frequently Asked Questions (FAQ)

Q: Can VLS252015ET-4R7M be used as a direct replacement for VLS252015T-4R7MR89?

A: Yes. Both parts share identical inductance (4.7 µH), tolerance (±20%), current rating (890 mA), DC resistance (318 mOhm maximum), shielding, operating temperature range, and package dimensions (1008 / 2520 Metric). The primary difference is product status; VLS252015ET-4R7M is marked "Not For New Designs," indicating limited future availability.

Q: What are the advantages of VLS252010CX-4R7M-1 over the original part?

A: The VLS252010CX-4R7M-1 provides higher current rating (1.11 A versus 890 mA) and lower DC resistance (235 mOhm maximum versus 318 mOhm maximum). It carries an Active product status, ensuring ongoing supply and support. Physical footprint and thermal operating range remain compatible.

Q: Are there any package compatibility concerns with VLS252010CX-4R7M-1?

A: The VLS252010CX-4R7M-1 is designated as Nonstandard package, but the supplier device package and physical dimensions (2.50mm x 2.00mm, 1.00mm height) match the original 1008 (2520 Metric) specification. PCB layout and assembly processes remain compatible.

Q: Do all substitute parts maintain RoHS3 compliance?

A: Yes. VLS252015ET-4R7M and VLS252010CX-4R7M-1 are both ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), matching the original part's environmental certifications.

Q: Which substitute should be selected for new product designs?

A: VLS252010CX-4R7M-1 is the recommended choice for new designs due to its Active product status, ensuring long-term component availability and supply chain continuity. The improved electrical performance (higher current rating, lower DC resistance) provides additional design margin.

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