VLP6045LT-220M Equivalent & Substitute Parts

Part Overview

The VLP6045LT-220M is a 22 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 2 A continuous current with a maximum DC resistance of 140 mOhm. This surface mount component operates across the temperature range of -40°C to 105°C and is designed for applications requiring fixed inductance in compact form factors.

The VLP6045LT-220M is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this inductor specification.

Substiute Parts

VLP6045LT-220M

TDK CorporationIn Stock: 2919VLP6045LT-220M Datasheet

Current PartRFQ

VLS6045EX-220M

TDK CorporationIn Stock: 12595VLS6045EX-220M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VLP6045LT-220M is determined by the following critical parameters:

• Inductance Value: Must be 22 µH with ±20% tolerance
• Current Rating: Minimum 2 A continuous current capability
• Saturation Current (Isat): Must support 2.1 A without saturation
• DC Resistance: Lower or equivalent DCR values are acceptable
• Core Material: Ferrite drum core construction
• Shielding: Shielded configuration required
• Operating Temperature: -40°C to 105°C range
• Mounting: Surface mount, nonstandard package
• Test Frequency: 100 kHz inductance measurement standard

The VLS6045EX-220M meets these substitution criteria while offering improved electrical performance characteristics and active product status with enhanced supply availability.

Parameter Comparison

Engineering Selection Recommendations

The VLS6045EX-220M is the qualified substitute for the obsolete VLP6045LT-220M based on the following factors:

Product Status: The VLS6045EX-220M maintains active product status with confirmed inventory availability (12,565 pcs), whereas the VLP6045LT-220M is obsolete with limited remaining stock (2,850 pcs). This ensures long-term supply chain continuity.

Electrical Compatibility: Both parts maintain identical inductance values (22 µH) and tolerance specifications (±20%). The VLS6045EX-220M provides superior DC resistance performance (105 mOhm versus 140 mOhm maximum), resulting in lower power dissipation. The saturation current rating of 2.4 A on the substitute exceeds the original 2.1 A specification, providing additional design margin.

Current Rating Consideration: The VLS6045EX-220M is rated for 1.9 A continuous current, which is 0.1 A below the original 2 A specification. Applications operating at or near the 2 A maximum rating require thermal and current distribution analysis to confirm compatibility.

Compliance: The VLS6045EX-220M is ROHS3 compliant, meeting current regulatory requirements. Both parts maintain REACH unaffected status and identical moisture sensitivity levels (MSL 1).

Physical Dimensions: The substitute features a smaller footprint (6.00 mm × 6.00 mm versus 6.80 mm × 6.80 mm), with identical maximum height (4.50 mm). PCB layout modifications may be required for component placement.

Frequently Asked Questions (FAQ)

Q: Can the VLS6045EX-220M directly replace the VLP6045LT-220M in existing designs?

A: Direct substitution is possible when the application current requirement does not exceed 1.9 A continuous operation. The electrical parameters (inductance, tolerance, DCR, saturation current) are compatible. Physical PCB layout may require adjustment due to the smaller footprint of the substitute part.

Q: What is the impact of the 0.1 A current rating difference?

A: The VLS6045EX-220M is rated for 1.9 A versus the original 2 A. Applications designed to operate at 2 A continuous current require thermal analysis and current distribution verification. The higher saturation current (2.4 A) of the substitute provides transient current margin.

Q: How does the lower DC resistance of the substitute affect circuit performance?

A: The VLS6045EX-220M exhibits 105 mOhm DC resistance compared to 140 mOhm maximum on the original part. This 25% reduction in resistance decreases power dissipation and heat generation, improving overall circuit efficiency. No circuit redesign is required; this represents an improvement in performance characteristics.

Q: Are there packaging or handling differences between these parts?

A: The VLP6045LT-220M uses standard SMD packaging, while the VLS6045EX-220M is supplied in Cut Tape (CT) and Digi-Reel® formats. Both maintain MSL 1 (Unlimited) moisture sensitivity classification. Standard SMD handling procedures apply to both components.

Q: What is the physical footprint difference?

A: The VLS6045EX-220M measures 6.00 mm × 6.00 mm compared to 6.80 mm × 6.80 mm for the original part. Maximum height remains 4.50 mm for both. The smaller footprint may allow for improved PCB layout density but requires verification of component placement clearances.

Q: Are both parts suitable for the same temperature range applications?

A: Yes. Both the VLP6045LT-220M and VLS6045EX-220M operate across -40°C to 105°C, meeting identical temperature specifications. No thermal performance differences exist between the parts across this operating range.