VLS252010T-4R7M Equivalent & Substitute Parts

Part Overview

The VLS252010T-4R7M is a 4.7 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 780 mA continuous current with a maximum DC resistance of 440mOhm. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part is housed in a 1008 (2520 Metric) surface mount package and operates across the temperature range of -40°C to 105°C.

Substiute Parts

VLS252010T-4R7M

TDK CorporationIn Stock: 2018VLS252010T-4R7M Datasheet

Current PartRFQ

VLS252010CX-4R7M-1

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

MFR RecommendedRFQ

PA4335.472NLT

Pulse ElectronicsIn Stock: 7797PA4335.472NLT Datasheet

DirectRFQ

74438323047

Würth ElektronikIn Stock: 257974438323047 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VLS252010T-4R7M is determined by the following critical parameters:

• Inductance Value: Must be 4.7 µH with ±20% tolerance
• Shielding: Must be shielded to maintain electromagnetic isolation
• Current Rating: Must meet or exceed 780 mA continuous current requirement
• DC Resistance: Lower DCR values indicate improved performance and are acceptable
• Operating Temperature Range: Must support -40°C to 105°C minimum
• Package Compatibility: Surface mount configuration with compatible footprint dimensions
• RoHS Compliance: Must maintain ROHS3 compliance status

Three substitute parts meet these criteria with varying performance characteristics and core material compositions.

Parameter Comparison

Engineering Selection Recommendations

VLS252010CX-4R7M-1 (TDK Corporation, Active Status): This part is the manufacturer-recommended substitute from TDK. It maintains identical inductance, tolerance, and operating temperature range while providing superior performance through reduced DC resistance (235 mOhm vs. 440 mOhm) and increased current rating (1.11 A vs. 780 mA). The part is ROHS3 compliant and actively manufactured. Package designation is listed as nonstandard; physical dimensions match the original part.

PA4335.472NLT (Pulse Electronics, Active Status): This substitute offers the highest current rating (1.25 A) and saturation current (1.6 A) among available options, with the lowest DC resistance (260 mOhm). The extended operating temperature range (-40°C to 125°C) provides additional thermal margin. Core material is iron rather than ferrite. Physical dimensions are slightly larger (2.70mm x 2.20mm vs. 2.50mm x 2.00mm) and height is increased (1.20mm vs. 1.00mm). ROHS3 compliant and actively manufactured.

74438323047 (Würth Elektronik, Active Status): This substitute maintains identical package designation (1008/2520 Metric) and physical dimensions to the original part, ensuring direct footprint compatibility. Current rating (940 mA) exceeds the original specification. DC resistance (388 mOhm) is lower than the original. Extended operating temperature range (-40°C to 125°C) is provided. Core material is metal composite. AEC-Q200 automotive qualification is included. ROHS3 compliant and actively manufactured.

Frequently Asked Questions (FAQ)

Q: Can VLS252010CX-4R7M-1 be used as a direct replacement for VLS252010T-4R7M?

A: Yes. Both parts share identical inductance (4.7 µH), tolerance (±20%), operating temperature range (-40°C to 105°C), and physical dimensions (2.50mm x 2.00mm x 1.00mm height). The substitute provides improved electrical performance with lower DC resistance and higher current rating. This is the manufacturer-recommended equivalent from TDK.

Q: What are the footprint considerations when substituting with PA4335.472NLT?

A: PA4335.472NLT has larger physical dimensions (2.70mm x 2.20mm) and greater height (1.20mm) compared to the original part (2.50mm x 2.00mm x 1.00mm). PCB layout verification is required to confirm clearance compatibility before implementation.

Q: Is 74438323047 suitable for automotive applications?

A: Yes. This part carries AEC-Q200 automotive qualification, making it suitable for automotive-grade applications. The original VLS252010T-4R7M does not specify automotive qualification.

Q: How do core material differences affect performance?

A: The original part uses ferrite core material. Substitute PA4335.472NLT uses iron core, and 74438323047 uses metal composite core. All three materials are shielded and meet the 4.7 µH inductance specification with ±20% tolerance. Core material selection affects frequency response characteristics and saturation behavior, which are determined by application-specific requirements.

Q: Can all three substitutes be used interchangeably?

A: All three substitutes meet the critical electrical parameters (inductance, current rating, shielding, RoHS compliance). However, physical dimensions differ for PA4335.472NLT. For applications with strict PCB space constraints, 74438323047 provides direct footprint compatibility. For applications prioritizing electrical performance margin, PA4335.472NLT offers the highest current and saturation ratings.

Q: What is the inventory status of these substitutes?

A: VLS252010CX-4R7M-1: 1927 pcs in stock. PA4335.472NLT: 7773 pcs in stock. 74438323047: 2519 pcs in stock. All parts are actively manufactured and available for procurement.