LHLP10TB331K Equivalent & Substitute Parts

Part Overview

The LHLP10TB331K is a 330 µH shielded inductor manufactured by Taiyo Yuden, designed for through-hole mounting applications requiring fixed inductance with moderate current handling. This component features a radial, vertical cylinder package with a maximum DC resistance of 880mOhm and supports current ratings up to 580 mA across an operating temperature range of -25°C to 105°C.

The LHLP10TB331K is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this inductor.

Substiute Parts

LHLP10TB331K

Taiyo YudenIn Stock: 771LHLP10TB331K Datasheet

Current PartRFQ

7447471331

Würth ElektronikIn Stock: 13917447471331 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LHLP10TB331K is determined by the following critical parameters:

Inductance Value: The substitute part must provide 330 µH inductance to maintain circuit functionality.

Shielding: Both the main part and substitute must feature shielding to prevent electromagnetic interference in the target application.

Core Material: Ferrite core construction is required for electromagnetic performance consistency.

Mounting Type: Through-hole mounting is mandatory for mechanical compatibility with existing PCB designs.

Package Configuration: Radial, vertical cylinder package geometry ensures physical fit within the designated board space.

Current Handling: The substitute must support the application's current requirements. The main part supports 580 mA; substitutes with equal or greater current ratings are acceptable.

DC Resistance: Lower or equal DCR values are acceptable; higher values may impact circuit performance.

Compliance: RoHS3 compliance is required to meet regulatory standards.

The Würth Elektronik 7447471331 meets all substitution criteria while offering improved electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 7447471331 is a direct substitute for the obsolete LHLP10TB331K based on the following engineering criteria:

Electrical Equivalence: Both inductors provide 330 µH inductance with ferrite core shielding. The substitute's 1 A current rating exceeds the original 580 mA specification, providing design margin. The substitute's 480 mOhm DCR is superior to the original 880 mOhm specification, reducing resistive losses.

Mechanical Compatibility: Both components feature identical radial, vertical cylinder packages with 11.00mm diameter. The substitute's maximum seated height of 11.50mm represents a 0.50mm increase over the original 11.00mm, which is negligible for most through-hole PCB applications.

Regulatory Compliance: Both parts maintain ROHS3 compliance, satisfying environmental and regulatory requirements.

Product Status: The Würth Elektronik 7447471331 is classified as active, ensuring ongoing availability and supply chain stability compared to the obsolete LHLP10TB331K.

Operating Temperature: The substitute's -40°C to 125°C operating range exceeds the original -25°C to 105°C specification, providing extended environmental performance.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 7447471331 be used as a direct replacement for the LHLP10TB331K?

A: Yes. Both inductors provide 330 µH inductance with shielded ferrite cores in identical radial, vertical cylinder packages. Electrical and mechanical parameters are compatible for through-hole PCB applications.

Q: What is the significance of the DCR difference between the two parts?

A: The LHLP10TB331K specifies 880 mOhm maximum DCR, while the 7447471331 specifies 480 mOhm maximum DCR. Lower DCR reduces resistive losses and heat generation in the inductor, improving circuit efficiency. This represents an improvement in the substitute part.

Q: Does the 0.50mm height difference affect PCB compatibility?

A: The LHLP10TB331K has a maximum seated height of 11.00mm, while the 7447471331 has a maximum seated height of 11.50mm. This 0.50mm difference is within standard PCB design tolerances and does not affect mechanical compatibility for typical through-hole applications.

Q: Why does the substitute have a wider inductance tolerance?

A: The LHLP10TB331K specifies ±10% tolerance, while the 7447471331 specifies ±20% tolerance. Both values fall within acceptable ranges for fixed inductor applications. Circuit designs should account for inductance tolerance in component selection.

Q: Is the higher current rating of the substitute a concern?

A: No. The 7447471331 supports 1 A current rating compared to the LHLP10TB331K's 580 mA rating. A higher current rating provides design margin and does not negatively impact circuit performance when operating at or below the original specification.

Q: Are both parts RoHS compliant?

A: Yes. Both the LHLP10TB331K and 7447471331 are ROHS3 compliant, meeting environmental and regulatory standards.

Q: What is the difference in operating temperature ranges?

A: The LHLP10TB331K operates from -25°C to 105°C, while the 7447471331 operates from -40°C to 125°C. The substitute provides extended temperature performance, suitable for applications requiring broader environmental specifications.