VLP6045LT-4R7M Equivalent & Substitute Parts

Part Overview

The VLP6045LT-4R7M is a 4.7 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 4.1 A continuous current with a maximum DC resistance of 38 mOhm. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The VLS6045EX-4R7M serves as the manufacturer-recommended substitute, offering improved electrical performance within the same physical footprint constraints.

Substiute Parts

VLP6045LT-4R7M

TDK CorporationIn Stock: 5802VLP6045LT-4R7M Datasheet

Current PartRFQ

VLS6045EX-4R7M

TDK CorporationIn Stock: 4662VLS6045EX-4R7M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VLP6045LT-4R7M is determined by the following critical parameters:

• Inductance Value: 4.7 µH (fixed requirement)
• Inductance Tolerance: ±20% (acceptable range)
• Current Rating: Minimum 4.1 A continuous
• Saturation Current: Minimum 4.4 A
• DC Resistance: Lower values preferred for thermal performance
• Core Material: Ferrite shielded construction
• Mounting Type: Surface mount compatibility
• Operating Temperature: -40°C to 105°C range
• Physical Footprint: Compatible with 6.80mm × 6.80mm × 4.50mm maximum envelope

The VLS6045EX-4R7M meets all substitution criteria with enhanced electrical characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The VLS6045EX-4R7M is the manufacturer-recommended substitute for the obsolete VLP6045LT-4R7M. Selection of this substitute is supported by the following factors:

• Product Status: The VLS6045EX-4R7M maintains active status with ongoing manufacturing support, ensuring long-term availability and supply chain continuity.
• Electrical Performance: The substitute provides equal inductance and tolerance specifications with improved current handling (4.2 A vs. 4.1 A) and reduced DC resistance (27 mOhm vs. 38 mOhm maximum).
• Compliance: The VLS6045EX-4R7M is RoHS3 compliant, meeting current regulatory requirements for electronic components.
• Physical Compatibility: The substitute features a smaller footprint (6.00mm × 6.00mm) while maintaining the same height (4.50mm), providing layout flexibility for PCB designs.
• Thermal Characteristics: Lower DC resistance reduces power dissipation and thermal stress during operation.

Frequently Asked Questions (FAQ)

Q: Can the VLS6045EX-4R7M be used as a direct replacement for the VLP6045LT-4R7M?

A: Yes. Both components share identical inductance values (4.7 µH), tolerance (±20%), operating temperature range (-40°C to 105°C), and mounting type (surface mount). The substitute meets or exceeds all electrical specifications of the original part.

Q: What are the key differences between these two inductors?

A: The primary differences are product status (obsolete vs. active), current rating (4.1 A vs. 4.2 A), saturation current (4.4 A vs. 5.8 A), DC resistance (38 mOhm max vs. 27 mOhm), and physical dimensions (6.80mm vs. 6.00mm square footprint). The substitute offers improved electrical performance and regulatory compliance.

Q: Will the smaller footprint of the VLS6045EX-4R7M affect PCB layout?

A: The VLS6045EX-4R7M has a smaller lateral footprint (6.00mm × 6.00mm vs. 6.80mm × 6.80mm) while maintaining identical height (4.50mm). This may require PCB layout verification to ensure adequate clearance and trace routing, but generally provides design flexibility.

Q: Are there any compliance or certification differences?

A: The VLS6045EX-4R7M is RoHS3 compliant, whereas the VLP6045LT-4R7M does not specify RoHS status. Both components are REACH unaffected and classified under ECCN EAR99.

Q: What is the moisture sensitivity level for these components?

A: Both the VLP6045LT-4R7M and VLS6045EX-4R7M have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.