VLS252012CX-1R0M Equivalent & Substitute Parts

Part Overview

The VLS252012CX-1R0M is a 1 µH shielded drum core wirewound inductor manufactured by TDK, rated for 2.55 A continuous current with a maximum DC resistance of 62 mOhm. This component is packaged in a 1008 (2520 Metric) surface mount form factor and operates across the temperature range of -40°C to 105°C. The part is classified as obsolete, making equivalent substitute components necessary for ongoing design support and procurement continuity.

Substiute Parts

VLS252012CX-1R0M

TDKIn Stock: 1458VLS252012CX-1R0M Datasheet

Current PartRFQ

BWVH002520121R0M00

Pulse ElectronicsIn Stock: 21427BWVH002520121R0M00 Datasheet

SimilarRFQ

BWVH002520121R0MH1

Pulse ElectronicsIn Stock: 1156BWVH002520121R0MH1 Datasheet

SimilarRFQ

BWVH002520121R0T00

Pulse ElectronicsIn Stock: 928BWVH002520121R0T00 Datasheet

SimilarRFQ

BWVH002520121R0TH1

Pulse ElectronicsIn Stock: 959BWVH002520121R0TH1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VLS252012CX-1R0M is determined by the following critical parameters:

• Inductance Value: Must be 1 µH (exact match required)
• Current Rating: Minimum 2.55 A to support the original design current
• DC Resistance: Lower or equal to 62 mOhm preferred; higher values acceptable if thermal and efficiency requirements permit
• Shielding: Must be shielded to maintain electromagnetic compatibility
• Package / Case: 1008 (2520 Metric) or equivalent physical dimensions (0.098" L x 0.079" W, height ≤ 0.049")
• Mounting Type: Surface mount required
• Operating Temperature: Must support minimum -40°C to 105°C range
• Compliance: ROHS3 compliance required

The substitute parts listed below meet these criteria with variations in DC resistance, current saturation ratings, and tolerance specifications that remain within acceptable engineering parameters for this inductor category.

Parameter Comparison

Engineering Selection Recommendations

All four Pulse Electronics substitute parts meet the core substitution criteria for the VLS252012CX-1R0M. Selection among these alternatives depends on specific application requirements:

BWVH002520121R0M00: Offers the lowest DC resistance at 37 mOhm with the highest current rating of 2.6 A and ±20% tolerance. This part is suitable for applications prioritizing minimal power dissipation and maximum current headroom. The nonstandard package designation requires physical verification against PCB footprint specifications.

BWVH002520121R0MH1: Provides a balanced profile with 49 mOhm DC resistance, 2.5 A current rating, and ±20% tolerance in a standard 1008 (2520 Metric) package. This part maintains compatibility with standard PCB layouts and offers improved thermal performance compared to the original part.

BWVH002520121R0T00: Rated for 2.2 A with 37 mOhm DC resistance and ±30% tolerance. This part is suitable for applications with lower current requirements and where tolerance relaxation is acceptable. The lower current rating must be evaluated against circuit design margins.

BWVH002520121R0TH1: Combines 49 mOhm DC resistance with 2.5 A current rating and ±30% tolerance in a standard 1008 (2520 Metric) package. This part offers thermal efficiency with relaxed tolerance specifications.

All substitute parts are active products with ROHS3 compliance, extended operating temperature ranges (-55°C to 125°C), and unlimited moisture sensitivity levels, providing superior long-term availability and environmental compliance compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can BWVH002520121R0M00 be used as a direct replacement despite its nonstandard package designation?

A: Physical dimensions match the original part (0.098" L x 0.079" W, 2.50mm x 2.00mm), but the nonstandard package classification requires verification against your specific PCB footprint and assembly process specifications before implementation.

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

A: Lower DC resistance (37-49 mOhm versus 62 mOhm) reduces power dissipation and heat generation, improving efficiency. This is a beneficial characteristic for most applications and does not create compatibility issues.

Q: Are the ±30% tolerance parts acceptable replacements?

A: BWVH002520121R0T00 and BWVH002520121R0TH1 with ±30% tolerance are acceptable if your circuit design accommodates inductance variation within this range. The original part specified ±20% tolerance; applications with tighter inductance requirements should prioritize BWVH002520121R0M00 or BWVH002520121R0MH1.

Q: How do the extended operating temperature ranges affect compatibility?

A: The substitute parts operate from -55°C to 125°C, exceeding the original -40°C to 105°C range. This provides additional design margin and is fully compatible with the original specification.

Q: Which substitute part offers the best overall replacement?

A: BWVH002520121R0MH1 provides optimal balance: standard 1008 (2520 Metric) package, ±20% tolerance matching the original, 2.5 A current rating, 49 mOhm DC resistance, and active product status with extended temperature range.