TDK 54-0071-004 Equivalent & Substitute Parts

Part Overview

The TDK 54-0071-004 is a 3.3 µH fixed inductor rated for 870 mA. This component is classified as obsolete, making it necessary to identify active equivalent parts for new designs and ongoing production requirements. The substitute part maintains the same inductance value while offering improved current handling capacity and active product status.

Substiute Parts

54-0071-004

TDK CorporationIn Stock: 83754-0071-004 Datasheet

Current PartRFQ

VLS3012HBX-3R3M

TDK CorporationIn Stock: 6192VLS3012HBX-3R3M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The TDK VLS3012HBX-3R3M qualifies as a direct substitute based on the following critical parameters:

• Inductance Match: Both parts specify 3.3 µH, meeting the primary functional requirement
• Current Capacity: The substitute provides 2.63 A saturation current, exceeding the original 870 mA rating, ensuring compatibility in existing circuits
• Manufacturer Consistency: Both parts are manufactured by TDK Corporation, maintaining supply chain continuity
• Compliance Alignment: Both parts carry MSL 1 (Unlimited) rating and EAR99 ECCN classification
• Active Status: The substitute is active production, resolving obsolescence constraints

Parameter Comparison

Engineering Selection Recommendations

The VLS3012HBX-3R3M is the qualified substitute for the obsolete 54-0071-004. Selection is based on:

• Functional Equivalence: Identical 3.3 µH inductance specification ensures direct functional replacement
• Regulatory Compliance: Both parts maintain EAR99 ECCN and MSL 1 classifications; the substitute adds ROHS3 compliance and REACH unaffected status, meeting current environmental standards
• Supply Continuity: Active production status of the substitute eliminates obsolescence risk for ongoing procurement
• Performance Enhancement: The substitute's higher current rating (2.63 A vs. 870 mA) and specified DC resistance (150 mOhm Max) provide measurable performance data for circuit analysis

Frequently Asked Questions (FAQ)

Q: Can the VLS3012HBX-3R3M directly replace the 54-0071-004 in existing designs?

A: Yes. Both parts share identical 3.3 µH inductance and MSL 1 rating. The substitute's higher current capacity ensures compatibility in circuits designed for the original part's 870 mA rating.

Q: What are the key differences between these parts?

A: The substitute provides specified DC resistance (150 mOhm Max), higher saturation current (2.82 A), shielding, and active product status. The original part specifications for these parameters are not provided in the datasheet.

Q: Are there packaging or mounting differences?

A: The substitute is specified as Surface Mount with Tape & Reel packaging. Original packaging details are not provided. Physical dimensions of the substitute are 3.00mm x 3.00mm with 1.20mm maximum seated height.

Q: Does the substitute meet current environmental regulations?

A: Yes. The VLS3012HBX-3R3M is ROHS3 compliant and REACH unaffected, meeting current environmental standards. The original part's compliance status is not specified.

Q: Why is the original part obsolete?

A: The 54-0071-004 is classified as obsolete by TDK Corporation. The VLS3012HBX-3R3M provides an active alternative with equivalent inductance and superior electrical specifications.