VLS252012ET-1R5N Equivalent & Substitute Parts

Part Overview

The VLS252012ET-1R5N is a 1.5 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 1.45 A continuous current with a maximum DC resistance of 126mOhm. This surface mount component is packaged in the 1008 (2520 Metric) form factor and operates across the -40°C to 105°C temperature range. The part carries a "Not For New Designs" status, making identification of equivalent alternatives essential for ongoing production and design updates. Substitute parts must maintain the same inductance value, shielding characteristics, and mechanical compatibility while meeting current application requirements.

Substiute Parts

VLS252012ET-1R5N

TDK CorporationIn Stock: 10208VLS252012ET-1R5N Datasheet

Current PartRFQ

VLS252010CX-1R5M-1

TDK CorporationIn Stock: 99380VLS252010CX-1R5M-1 Datasheet

MFR RecommendedRFQ

BWVF002520121R5M00

Pulse ElectronicsIn Stock: 2996BWVF002520121R5M00 Datasheet

MFR RecommendedRFQ

BWVF002520121R5T00

Pulse ElectronicsIn Stock: 983BWVF002520121R5T00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VLS252012ET-1R5N is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 1.5 µH (exact match required)
• Shielding: Shielded configuration
• Core material: Ferrite
• Mounting type: Surface Mount
• Mechanical footprint: 2.50mm x 2.00mm base dimensions

Secondary Compatibility Factors:

• Current rating must equal or exceed 1.45 A
• DC resistance should not significantly exceed 126mOhm to maintain circuit performance
• Saturation current (Isat) should support the application's peak current demands
• Operating temperature range must encompass the application environment
• RoHS3 compliance and MSL rating must be maintained

The three substitute parts listed below satisfy these core requirements while offering improvements in current handling capacity and reduced DC resistance compared to the original part.

Parameter Comparison

Engineering Selection Recommendations

VLS252010CX-1R5M-1 (TDK Corporation): This part maintains TDK manufacturer continuity and offers improved current handling at 1.9 A with reduced DC resistance of 86mOhm. The tighter inductance tolerance of ±20% provides better circuit performance predictability. Active product status ensures long-term availability. Height reduction to 0.039" (1.00mm) may benefit space-constrained layouts. Package designation as "Nonstandard" requires verification of mechanical compatibility with existing PCB footprints designed for the standard 1008 case.

BWVF002520121R5M00 (Pulse Electronics): This substitute delivers the highest current rating at 2.3 A and the lowest DC resistance at 68mOhm, providing maximum performance headroom for current-limited applications. Extended operating temperature range of -55°C to 125°C accommodates broader environmental requirements. Active product status supports production continuity. Height of 0.049" (1.25mm) exceeds the original part by 0.002", requiring clearance verification. Nonstandard package designation necessitates footprint compatibility assessment.

BWVF002520121R5T00 (Pulse Electronics): This part maintains the standard 1008 (2520 Metric) package designation, ensuring direct mechanical compatibility with existing PCB designs. Current rating of 2.07 A and DC resistance of 68mOhm provide performance improvement over the original part. Inductance tolerance of ±30% matches the original specification. Extended temperature range of -55°C to 125°C offers environmental flexibility. Active product status guarantees availability. Height of 0.049" (1.25mm) requires clearance confirmation.

Frequently Asked Questions (FAQ)

Q: Can I use these substitute parts interchangeably with the VLS252012ET-1R5N?

A: Substitution is valid when the application requirements are met by the substitute part's electrical and thermal specifications. All three substitutes maintain the 1.5 µH inductance value, shielded ferrite core construction, and surface mount configuration. Verify that the substitute's current rating, DC resistance, and operating temperature range satisfy your circuit design requirements. For parts with nonstandard package designations, confirm PCB footprint compatibility before implementation.

Q: What is the significance of the "Not For New Designs" status on the original part?

A: This designation indicates that TDK Corporation has discontinued the VLS252012ET-1R5N for new product development. Existing inventory remains available, but long-term supply cannot be guaranteed. Selection of an active substitute part ensures design sustainability and production continuity.

Q: How do inductance tolerance differences affect circuit performance?

A: The VLS252012ET-1R5N and BWVF002520121R5T00 both specify ±30% tolerance, while VLS252010CX-1R5M-1 and BWVF002520121R5M00 offer tighter ±20% tolerance. Tighter tolerance reduces inductance variation across production batches, improving circuit consistency. Applications sensitive to inductance variation should prioritize the ±20% tolerance parts.

Q: Why do some substitutes have lower DC resistance?

A: DC resistance directly impacts power dissipation and thermal performance. Lower DCR values (68mOhm versus 126mOhm) reduce I²R losses, improving efficiency and reducing heat generation. This is particularly beneficial in high-current or thermally constrained applications.

Q: What does "Nonstandard" package designation mean for compatibility?

A: VLS252010CX-1R5M-1 and BWVF002520121R5M00 carry nonstandard package designations despite maintaining the 2.50mm x 2.00mm footprint dimensions. This indicates the parts may have different internal construction or lead configuration compared to the standard 1008 case. PCB footprint verification is required before design implementation.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All three substitute parts carry ROHS3 Compliant status, matching the original part's environmental compliance. All parts also maintain MSL 1 (Unlimited) moisture sensitivity rating, requiring no special handling precautions.

Q: Which substitute offers the best thermal performance?

A: BWVF002520121R5M00 provides the lowest DC resistance at 68mOhm and the highest current rating at 2.3 A, resulting in the lowest power dissipation for equivalent current levels. Additionally, its extended operating temperature range of -55°C to 125°C supports broader thermal environments compared to the original part's -40°C to 105°C range.