VLS252015ET-3R3M Equivalent & Substitute Parts

Part Overview

The VLS252015ET-3R3M is a 3.3 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 1.05 A continuous current with a maximum DC resistance of 219mOhm. This surface mount component is packaged in the 1008 (2520 Metric) form factor and is compliant with RoHS3 and REACH standards.

The VLS252015ET-3R3M carries a "Not For New Designs" product status, indicating that TDK has discontinued active development for this part number. Finding equivalent or substitute inductors is necessary for ongoing production support, design refreshes, or when inventory becomes unavailable.

Substiute Parts

VLS252015ET-3R3M

TDK CorporationIn Stock: 2676VLS252015ET-3R3M Datasheet

Current PartRFQ

VLS252010CX-3R3M-1

TDK CorporationIn Stock: 6103VLS252010CX-3R3M-1 Datasheet

MFR RecommendedRFQ

ASPI-2515-3R3M-T2

Abracon LLCIn Stock: 43134ASPI-2515-3R3M-T2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute inductors for the VLS252015ET-3R3M must satisfy the following electrical and mechanical criteria:

Electrical Parameters (Critical for Substitution):

• Inductance value: 3.3 µH (±20% tolerance acceptable)
• Core material: Ferrite
• Shielding: Shielded configuration required
• Current rating: Minimum 1.05 A continuous
• DC resistance: Must not exceed 219mOhm to maintain circuit performance
• Operating temperature range: Must support -40°C ~ 105°C minimum

Mechanical Parameters (Critical for Substitution):

• Mounting type: Surface mount only
• Physical footprint: 2.50mm x 2.00mm base dimensions
• Height: Maximum 1.00mm seated height preferred for PCB clearance
• Packaging: Tape & Reel format for automated assembly

The two substitute parts listed below meet these criteria with improvements in current rating and/or DC resistance characteristics.

Parameter Comparison

Engineering Selection Recommendations

VLS252010CX-3R3M-1 (TDK Corporation): This substitute offers a direct upgrade path from the discontinued VLS252015ET-3R3M. Both parts are manufactured by TDK Corporation within the same VLS series family. The VLS252010CX-3R3M-1 provides improved current handling (1.25 A vs. 1.05 A) and reduced DC resistance (186mOhm vs. 219mOhm), resulting in lower power dissipation. Operating temperature range remains identical at -40°C ~ 105°C. Product status is Active, ensuring long-term availability. This part is recommended for designs requiring continuity with TDK sourcing and performance enhancement.

ASPI-2515-3R3M-T2 (Abracon LLC): This substitute provides the lowest DC resistance (138mOhm) and highest current rating (1.3 A) among the three options, delivering superior thermal performance and current capacity margin. The extended operating temperature range (-25°C ~ 120°C) accommodates more demanding thermal environments. Physical footprint matches the main part at 2.50mm x 2.00mm, though seated height is 1.50mm versus 1.00mm, requiring PCB layout verification for clearance. Product status is Active with high inventory availability (43,124 pcs). This part is recommended for applications prioritizing low DC resistance and thermal headroom.

Both substitutes maintain RoHS3 compliance, MSL Level 1 rating, and shielded ferrite drum core construction. Selection between them depends on sourcing preference (TDK vs. Abracon), thermal design requirements, and PCB height constraints.

Frequently Asked Questions (FAQ)

Q: Can the VLS252010CX-3R3M-1 be used as a direct replacement for the VLS252015ET-3R3M?

A: Yes. Both parts share identical inductance (3.3 µH), tolerance (±20%), core type (ferrite drum core, shielded), operating temperature range (-40°C ~ 105°C), physical footprint (2.50mm x 2.00mm), and seated height (1.00mm). The VLS252010CX-3R3M-1 exceeds the electrical requirements with higher current rating and lower DC resistance, making it a compatible upgrade.

Q: Can the ASPI-2515-3R3M-T2 be used as a direct replacement for the VLS252015ET-3R3M?

A: Yes, with one mechanical consideration. The ASPI-2515-3R3M-T2 matches all critical electrical parameters and physical footprint (2.50mm x 2.00mm). However, its seated height is 1.50mm compared to 1.00mm for the original part. PCB layout must be verified to ensure adequate clearance above the inductor before implementation.

Q: What is the significance of the "Not For New Designs" status on the VLS252015ET-3R3M?

A: This status indicates that TDK has discontinued active development and marketing of this part number. While existing inventory may remain available, the manufacturer does not recommend its use in new product designs. Both substitute parts carry "Active" status, confirming ongoing manufacturing support and long-term availability.

Q: How do DC resistance differences affect circuit performance?

A: DC resistance directly impacts power dissipation and thermal performance. The VLS252010CX-3R3M-1 (186mOhm) and ASPI-2515-3R3M-T2 (138mOhm) both exhibit lower DC resistance than the original VLS252015ET-3R3M (219mOhm), reducing I²R losses. In current-limited applications, this translates to lower heat generation and improved efficiency. Circuit simulation or thermal analysis should confirm acceptability for specific application requirements.

Q: Are there packaging or supply chain differences between these parts?

A: All three parts are supplied in Tape & Reel (TR) format suitable for automated assembly. The VLS252010CX-3R3M-1 shows 5,998 pcs in stock, while the ASPI-2515-3R3M-T2 shows significantly higher inventory at 43,124 pcs. Sourcing strategy may favor the Abracon part for applications requiring rapid procurement or high-volume production.

Q: Do these substitutes maintain compliance certifications?

A: Yes. All three parts are RoHS3 compliant, REACH unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity rating. Compliance documentation remains consistent across the substitution options.