VLF5014ST-2R2M2R3 Equivalent & Substitute Parts

Part Overview

The VLF5014ST-2R2M2R3 is a 2.2 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 2.3 A continuous current with a maximum DC resistance of 73 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 temperature range of -40°C to 105°C and is suitable for surface mount applications in compact form factors.

Substiute Parts

VLF5014ST-2R2M2R3

TDK CorporationIn Stock: 3149VLF5014ST-2R2M2R3 Datasheet

Current PartRFQ

VLS3012HBX-2R2M

TDK CorporationIn Stock: 2275VLS3012HBX-2R2M Datasheet

MFR RecommendedRFQ

74408943022

Würth ElektronikIn Stock: 594074408943022 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the VLF5014ST-2R2M2R3 must satisfy the following critical parameters:

• Inductance value of 2.2 µH with ±20% tolerance
• Shielded construction to maintain electromagnetic isolation
• Surface mount configuration
• Operating temperature range of at least -40°C to 105°C
• Drum core wirewound construction type

The two identified substitutes meet these core requirements while offering variations in current rating, DC resistance, and physical dimensions. Selection between substitutes depends on specific circuit requirements regarding current handling capacity and thermal performance.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are classified as active products with current manufacturing support, addressing the obsolescence status of the original VLF5014ST-2R2M2R3.

The VLS3012HBX-2R2M from TDK Corporation offers a compact footprint (3.00 × 3.00 mm) with increased current rating (3.15 A) and saturation current (3.35 A). This substitute uses a metal core construction and is ROHS3 compliant. The higher DC resistance (106 mOhm Max) should be evaluated against thermal dissipation requirements in the target application.

The 74408943022 from Würth Elektronik provides the lowest DC resistance (30 mOhm Max) and highest saturation current (4.6 A), with an extended operating temperature range to 125°C. This part maintains ferrite core construction consistent with the original design. The larger physical footprint (4.80 × 4.80 × 4.10 mm) requires verification against PCB layout constraints. ROHS3 compliance is confirmed.

Selection between these substitutes depends on circuit requirements for current capacity, thermal performance, and available PCB space.

Frequently Asked Questions (FAQ)

Q: Can VLS3012HBX-2R2M be used as a direct replacement for VLF5014ST-2R2M2R3?

A: VLS3012HBX-2R2M meets the core electrical requirements (2.2 µH inductance, ±20% tolerance, shielded construction, surface mount). However, the significantly smaller footprint (3.00 × 3.00 mm versus 4.70 × 4.50 mm) and different core material (metal versus ferrite) require PCB layout verification and circuit performance validation before implementation.

Q: What is the impact of different DC resistance values on circuit performance?

A: DC resistance directly affects power dissipation and thermal performance. The original part specifies 73 mOhm Max. VLS3012HBX-2R2M has 106 mOhm Max (higher dissipation), while 74408943022 has 30 mOhm Max (lower dissipation). Selection should account for current levels and thermal budget in the application.

Q: Are both substitutes compatible with the original operating temperature range?

A: Both substitutes support the original range of -40°C to 105°C. The 74408943022 extends to 125°C, providing additional thermal margin if required by the application.

Q: What are the packaging implications of these substitutes?

A: The original part uses nonstandard packaging. Both substitutes are supplied in Tape & Reel (TR) format, which is standard for automated assembly. Verify compatibility with existing pick-and-place equipment and tape specifications.

Q: How do core material differences affect electromagnetic performance?

A: The original VLF5014ST-2R2M2R3 uses ferrite core material. VLS3012HBX-2R2M uses metal core construction. While both are shielded drum core designs, the different core materials may produce variations in frequency response and EMI characteristics. Circuit-level testing is recommended for applications with strict electromagnetic performance requirements.

Q: Are both substitutes RoHS compliant?

A: Yes. Both VLS3012HBX-2R2M and 74408943022 are ROHS3 compliant. The original part's RoHS status was not specified in available documentation.