VLS252012ET-4R7M Equivalent & Substitute Parts

Part Overview

The VLS252012ET-4R7M is a 4.7 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 810 mA continuous current with a maximum DC resistance of 405 mOhm. This surface mount component in 1008 (2520 Metric) package is designed for applications requiring compact, shielded inductance in the low microhenry range. The part carries a "Not For New Designs" status, making equivalent substitutes necessary for ongoing production and new design implementations.

Substiute Parts

VLS252012ET-4R7M

TDK CorporationIn Stock: 19898VLS252012ET-4R7M Datasheet

Current PartRFQ

VLS252010CX-4R7M-1

TDK CorporationIn Stock: 2023VLS252010CX-4R7M-1 Datasheet

MFR RecommendedRFQ

BWVF002520124R7M00

Pulse ElectronicsIn Stock: 3010BWVF002520124R7M00 Datasheet

MFR RecommendedRFQ

BWVF002520124R7T00

Pulse ElectronicsIn Stock: 1143BWVF002520124R7T00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VLS252012ET-4R7M is determined by the following critical parameters:

• Inductance Value: Must be 4.7 µH with tolerance range compatible to ±20%
• Current Rating: Minimum 810 mA to maintain equivalent current handling capability
• DC Resistance: Lower or equal DCR values are acceptable; higher values indicate increased losses
• Shielding: Must be shielded to maintain electromagnetic isolation
• Core Material: Ferrite core construction required
• Package Footprint: 1008 (2520 Metric) or equivalent 2.50mm × 2.00mm dimensions
• Mounting Type: Surface mount only
• Compliance: ROHS3 compliant, MSL 1 rating

Three substitute parts meet these criteria with varying performance characteristics and availability status.

Parameter Comparison

Engineering Selection Recommendations

VLS252010CX-4R7M-1 (TDK Corporation)

This TDK substitute provides improved current handling at 1.11 A with reduced DC resistance of 235 mOhm, delivering superior thermal performance compared to the original part. Active product status ensures long-term availability. The nonstandard package designation requires verification of PCB footprint compatibility, though physical dimensions remain identical at 2.50mm × 2.00mm. Height remains at 1.00mm, matching the original specification. Maintains identical operating temperature range and compliance certifications.

BWVF002520124R7M00 (Pulse Electronics)

This Pulse Electronics option offers the lowest DC resistance at 190 mOhm with 1.1 A current rating, providing maximum efficiency in power dissipation. Extended operating temperature range of -55°C to 125°C accommodates broader environmental conditions. Active product status guarantees supply continuity. Height increases to 1.25mm, requiring PCB layout verification for clearance constraints. Nonstandard package designation necessitates footprint confirmation.

BWVF002520124R7T00 (Pulse Electronics)

This variant maintains the standard 1008 (2520 Metric) package designation, ensuring direct PCB compatibility without layout modifications. Current rating of 990 mA exceeds the original 810 mA specification. DC resistance of 190 mOhm matches the BWVF002520124R7M00 variant. Inductance tolerance widens to ±30%, which may impact circuit performance in tolerance-sensitive applications. Height increases to 1.25mm. Extended operating temperature range and active product status provide long-term design security.

Frequently Asked Questions (FAQ)

Q: Can VLS252010CX-4R7M-1 be used as a direct replacement for VLS252012ET-4R7M?

A: VLS252010CX-4R7M-1 meets all critical electrical parameters: 4.7 µH inductance, ±20% tolerance, 1.11 A current rating exceeding the 810 mA requirement, and shielded ferrite core construction. Physical dimensions are identical at 2.50mm × 2.00mm with 1.00mm height. The nonstandard package designation requires PCB footprint verification, though mechanical compatibility is maintained.

Q: What is the impact of lower DC resistance in substitute parts?

A: Lower DC resistance reduces resistive losses and heat generation during operation. BWVF002520124R7M00 and BWVF002520124R7T00 at 190 mOhm versus the original 405 mOhm result in approximately 53% reduction in resistive power dissipation, improving thermal performance and efficiency.

Q: Are there height clearance concerns with substitute parts?

A: VLS252010CX-4R7M-1 maintains the original 1.00mm seated height. BWVF002520124R7M00 and BWVF002520124R7T00 increase to 1.25mm, requiring verification of PCB clearance above the component. This 0.25mm increase may impact designs with tight vertical constraints.

Q: Which substitute is recommended for new designs?

A: BWVF002520124R7T00 provides the most direct replacement path due to standard 1008 (2520 Metric) package designation, eliminating footprint verification requirements. Active product status and extended operating temperature range support long-term production. Verify inductance tolerance of ±30% compatibility with circuit requirements.

Q: Do all substitutes maintain RoHS3 compliance?

A: All three substitute parts carry ROHS3 Compliant status with MSL 1 (Unlimited) moisture sensitivity rating, matching the original VLS252012ET-4R7M specifications.

Q: What is the significance of "Nonstandard" package designation?

A: Nonstandard package designation indicates the component does not conform to IPC standard package outlines, requiring direct footprint comparison with PCB design files. Physical dimensions remain provided and must be verified against PCB pad layouts. This does not indicate inferior quality but requires explicit compatibility confirmation.