VLP6045LT-330M Equivalent & Substitute Parts

Part Overview

The VLP6045LT-330M is a 33 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 1.5 A continuous current with a maximum DC resistance of 202 mOhm. This surface mount component operates across the industrial temperature range of -40°C to 105°C and is designed for applications requiring controlled inductance with electromagnetic shielding in compact form factors.

The VLP6045LT-330M is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for systems utilizing this inductance value and current rating.

Substiute Parts

VLP6045LT-330M

TDK CorporationIn Stock: 1838VLP6045LT-330M Datasheet

Current PartRFQ

VLS6045EX-330M

TDK CorporationIn Stock: 13467VLS6045EX-330M Datasheet

MFR RecommendedRFQ

DRA73-330-R

Eaton - Electronics DivisionIn Stock: 7928DRA73-330-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VLP6045LT-330M is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 33 µH (exact match required)
• Inductance tolerance: ±20% (must be equivalent or tighter)
• Current rating: minimum 1.5 A continuous
• Shielding: shielded construction required
• Mounting type: surface mount required
• Core material: ferrite or equivalent electromagnetic performance
• Operating temperature range: must encompass -40°C to 105°C minimum

Secondary Compatibility Factors:

• DC resistance: lower or equivalent values preferred to minimize power dissipation
• Saturation current: must exceed rated current to prevent core saturation
• Package dimensions: physical fit within PCB layout constraints
• Moisture sensitivity: MSL rating compatibility

Two substitute parts meet these criteria and are identified as manufacturer-recommended alternatives.

Parameter Comparison

Engineering Selection Recommendations

VLS6045EX-330M (TDK Corporation - Preferred Primary Substitute)

The VLS6045EX-330M is the manufacturer-recommended primary substitute. Both components are manufactured by TDK Corporation and share identical inductance, tolerance, current rating, and operating temperature specifications. The VLS6045EX-330M offers improved performance with lower DC resistance (175 mOhm versus 202 mOhm maximum) and higher saturation current (1.9 A versus 1.6 A). The component is currently in active production status with ROHS3 compliance certification. The smaller footprint (6.00mm x 6.00mm versus 6.80mm x 6.80mm) may require PCB layout verification. This substitute provides direct functional equivalence with enhanced electrical characteristics.

DRA73-330-R (Eaton - Electronics Division - Secondary Substitute)

The DRA73-330-R is an alternative substitute manufactured by Eaton - Electronics Division. This component matches the 33 µH inductance and ±20% tolerance specification. The current rating is 1.25 A, which is 0.25 A below the main part specification. The DC resistance (183 mOhm) is lower than the main part, and the saturation current (1.35 A) is below the main part rating. The operating temperature range extends to 165°C, exceeding the main part specification. The component includes AEC-Q200 automotive qualification and ROHS3 compliance. The larger footprint (7.60mm x 7.60mm) and lower height (4.65mm) require PCB layout evaluation. This substitute is suitable only for applications where the 1.25 A current rating is sufficient and where the extended temperature capability provides system benefit.

Frequently Asked Questions (FAQ)

Q: Can VLS6045EX-330M directly replace VLP6045LT-330M without circuit modification?

A: The VLS6045EX-330M meets all primary electrical specifications for direct substitution. The inductance value, tolerance, current rating, and operating temperature range are identical. The improved DC resistance and saturation current provide enhanced performance margins. Physical footprint verification is required due to the smaller package dimensions (6.00mm x 6.00mm versus 6.80mm x 6.80mm). No circuit modification is necessary if PCB layout accommodates the smaller footprint.

Q: Is DRA73-330-R suitable as a substitute for applications requiring 1.5 A continuous current?

A: The DRA73-330-R has a maximum continuous current rating of 1.25 A, which is 0.25 A below the VLP6045LT-330M specification of 1.5 A. This component is not suitable for applications requiring the full 1.5 A continuous current rating. The DRA73-330-R may be considered only for applications where the actual operating current does not exceed 1.25 A and where the extended temperature range provides system benefit.

Q: What are the key differences in DC resistance between these inductors?

A: The VLP6045LT-330M specifies a maximum DC resistance of 202 mOhm. The VLS6045EX-330M provides 175 mOhm, representing a 13% reduction in resistance. The DRA73-330-R provides 183 mOhm, representing a 9% reduction. Lower DC resistance reduces power dissipation and heat generation during operation. Both substitutes offer improved efficiency characteristics compared to the main part.

Q: Are there compliance or certification differences between these parts?

A: The VLP6045LT-330M is classified as obsolete with unspecified RoHS status. The VLS6045EX-330M and DRA73-330-R are both active production components with ROHS3 compliance certification. All three components have REACH Unaffected status. The DRA73-330-R includes AEC-Q200 automotive qualification, which is not specified for the other components. Compliance requirements for the target application should determine substitute selection.

Q: How do package dimensions affect substitution decisions?

A: The VLP6045LT-330M measures 6.80mm x 6.80mm with 4.50mm height. The VLS6045EX-330M measures 6.00mm x 6.00mm with 4.50mm height, requiring verification that the smaller footprint fits within PCB layout constraints. The DRA73-330-R measures 7.60mm x 7.60mm with 4.65mm height, requiring verification that the larger footprint and lower profile accommodate PCB routing and component placement. Physical layout evaluation is mandatory before substitution.