VLF3010AT-1R5N1R2-1 Equivalent & Substitute Parts

Part Overview

The VLF3010AT-1R5N1R2-1 is a 1.5 µH shielded wirewound inductor manufactured by TDK Corporation, rated for 1.5 A continuous current with a maximum DC resistance of 78 mOhm. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part operates across the industrial temperature range of -40°C to 105°C and is designed for surface mount applications in compact form factors.

Substiute Parts

VLF3010AT-1R5N1R2-1

TDK CorporationIn Stock: 1140VLF3010AT-1R5N1R2-1 Datasheet

Current PartRFQ

VLS3012HBX-1R5M

TDK CorporationIn Stock: 3349VLS3012HBX-1R5M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VLF3010AT-1R5N1R2-1 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Inductance value must match: 1.5 µH
• Shielding type must be maintained: Shielded
• Operating temperature range must encompass or equal: -40°C ~ 105°C
• Current rating must meet or exceed the application requirement: minimum 1.5 A
• DC resistance should be comparable or lower to minimize power loss

Mechanical Compatibility Criteria:

• Mounting type must be Surface Mount
• Physical dimensions must be compatible with PCB layout constraints
• Height must not exceed available board clearance

The VLS3012HBX-1R5M qualifies as a direct substitute based on matching inductance value, shielding configuration, operating temperature range, and surface mount packaging. The substitute part provides superior electrical performance with higher current rating (4.19 A vs. 1.5 A), lower DC resistance (67 mOhm vs. 78 mOhm), and active product status.

Parameter Comparison

Engineering Selection Recommendations

The VLS3012HBX-1R5M is the qualified substitute for the obsolete VLF3010AT-1R5N1R2-1. Selection is based on the following factors:

Product Status: The VLS3012HBX-1R5M maintains active product status with TDK Corporation, ensuring long-term availability and supply chain continuity compared to the obsolete VLF3010AT-1R5N1R2-1.

Electrical Performance: The substitute part delivers equivalent inductance (1.5 µH) with improved tolerance (±20% vs. ±30%), lower DC resistance (67 mOhm vs. 78 mOhm), and significantly higher current rating (4.19 A vs. 1.5 A). These characteristics provide enhanced performance margin and reduced thermal dissipation in the application circuit.

Compliance & Certifications: The VLS3012HBX-1R5M is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components in regulated markets.

Physical Compatibility: The substitute part is marginally larger (3.00mm x 3.00mm vs. 2.80mm x 2.60mm) with increased height (1.20mm vs. 1.00mm). PCB layout verification is required to confirm clearance compatibility with existing board designs.

Frequently Asked Questions (FAQ)

Q: Can the VLS3012HBX-1R5M be used as a direct replacement for the VLF3010AT-1R5N1R2-1?

A: Yes, the VLS3012HBX-1R5M qualifies as a direct electrical substitute. Both parts share identical inductance values (1.5 µH), shielding configuration, operating temperature range, and surface mount packaging. Physical dimensions differ slightly; PCB layout verification is necessary to confirm mechanical fit.

Q: What are the key differences between these two inductors?

A: The primary differences are product status (active vs. obsolete), current rating (4.19 A vs. 1.5 A), DC resistance (67 mOhm vs. 78 mOhm), inductance tolerance (±20% vs. ±30%), core type (drum core vs. standard wirewound), and physical dimensions. The substitute part offers superior electrical performance and regulatory compliance.

Q: Are there any PCB layout considerations when switching to the VLS3012HBX-1R5M?

A: Yes. The substitute part is 0.20mm larger in length and width, and 0.20mm taller. Verify that the increased footprint (3.00mm x 3.00mm) and height (1.20mm) do not conflict with adjacent components, trace routing, or board clearance requirements.

Q: Does the inductance tolerance difference affect circuit performance?

A: The VLS3012HBX-1R5M has tighter tolerance (±20% vs. ±30%), which provides better inductance consistency and may improve circuit performance in applications sensitive to inductance variation. This is a beneficial characteristic for the substitute part.

Q: What is the significance of the different inductance test frequencies?

A: The VLF3010AT-1R5N1R2-1 is tested at 100 kHz, while the VLS3012HBX-1R5M is tested at 1 MHz. Both parts maintain the specified 1.5 µH inductance value across their respective test frequencies. The higher test frequency for the substitute part reflects modern measurement standards.

Q: Is the VLS3012HBX-1R5M suitable for high-current applications?

A: The VLS3012HBX-1R5M is rated for 4.19 A continuous current with saturation current of 4.41 A, making it suitable for applications requiring higher current handling than the original 1.5 A rated part. This provides additional design margin for current-sensitive circuits.