NS10145T331MNA Equivalent & Substitute Parts

Part Overview

The NS10145T331MNA is a 330 µH shielded drum core wirewound inductor manufactured by Taiyo Yuden, rated for 640 mA continuous current with a maximum DC resistance of 840 mOhm. This component is designed for surface mount applications in nonstandard package configurations and operates across the temperature range of -40°C to 125°C.

The NS10145T331MNA carries a product status of Not For New Designs, indicating that Taiyo Yuden has discontinued active development and support for this part number. Organizations requiring equivalent functionality must identify substitute components that maintain electrical and mechanical compatibility with existing designs or transition to active product lines.

Substiute Parts

NS10145T331MNA

Taiyo YudenIn Stock: 2311NS10145T331MNA Datasheet

Current PartRFQ

BPSF00101045331M00

Pulse ElectronicsIn Stock: 796BPSF00101045331M00 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NS10145T331MNA is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Inductance value of 330 µH with ±20% tolerance
• Shielded ferrite core construction
• Surface mount nonstandard package configuration
• Operating temperature range of -40°C to 125°C
• RoHS3 compliance and MSL 1 rating

Mechanical Compatibility Requirements:

• Package dimensions of 10.10 mm × 10.10 mm (length × width)
• Seated height maximum of 4.85 mm or less
• Tape & Reel packaging format

Performance Considerations: Substitute parts must maintain current handling capability and DC resistance characteristics suitable for the application. The saturation current and DC resistance values define the thermal and electrical performance envelope within which substitutes operate.

The BPSF00101045331M00 from Pulse Electronics meets the core electrical and mechanical substitution criteria through matching inductance, shielding, core material, temperature range, compliance certifications, and package footprint.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: BPSF00101045331M00 (Pulse Electronics)

The BPSF00101045331M00 provides direct functional substitution for the NS10145T331MNA across all critical electrical and mechanical parameters. Both components share identical inductance values, tolerance specifications, shielding characteristics, core materials, operating temperature ranges, and package footprints.

The BPSF00101045331M00 carries Active product status, ensuring ongoing manufacturer support, availability, and compliance maintenance. This part is suitable for new designs and provides a transition path from the discontinued NS10145T331MNA.

Performance Differential:

The BPSF00101045331M00 exhibits lower current rating (580 mA versus 640 mA), lower saturation current (540 mA versus 710 mA), and lower DC resistance (680 mOhm versus 840 mOhm). These differences indicate improved thermal efficiency and reduced power dissipation in the substitute component. Applications operating at or below 580 mA continuous current experience direct compatibility. Applications requiring the full 640 mA rating of the original part require thermal and electrical analysis to confirm the substitute's suitability.

Compliance and Certification:

Both components maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity ratings, ensuring compatibility with standard manufacturing and storage environments. The BPSF00101045331M00 includes REACH Unaffected status, providing additional regulatory clarity for international applications.

Frequently Asked Questions (FAQ)

Q: Can the BPSF00101045331M00 directly replace the NS10145T331MNA in existing designs?

A: The BPSF00101045331M00 provides direct mechanical and electrical substitution for applications operating at or below 580 mA continuous current. The identical package footprint (10.10 mm × 10.10 mm), inductance value (330 µH), and operating temperature range (-40°C to 125°C) ensure PCB-level compatibility. Applications requiring the full 640 mA rating of the original part require circuit-level analysis to confirm thermal performance with the substitute's lower current rating.

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

A: The primary differences are current handling capability and DC resistance. The NS10145T331MNA is rated for 640 mA continuous current with 840 mOhm maximum DC resistance, while the BPSF00101045331M00 is rated for 580 mA continuous current with 680 mOhm maximum DC resistance. The lower DC resistance of the substitute results in reduced power dissipation and improved thermal efficiency. Both components maintain identical inductance, shielding, core material, and package dimensions.

Q: Are both components available in the same packaging format?

A: Yes. Both the NS10145T331MNA and BPSF00101045331M00 are supplied in Tape & Reel (TR) packaging suitable for automated assembly processes. The nonstandard package configuration and identical footprint dimensions ensure compatibility with existing pick-and-place equipment and PCB layouts.

Q: What is the significance of the "Not For New Designs" status on the NS10145T331MNA?

A: The "Not For New Designs" designation indicates that Taiyo Yuden has discontinued active development and support for this part number. Existing inventory remains available, but the manufacturer does not recommend this component for new product development. The BPSF00101045331M00, carrying Active status, represents the recommended path forward for new designs and provides long-term supply assurance.

Q: Do both inductors meet the same regulatory compliance standards?

A: Yes. Both the NS10145T331MNA and BPSF00101045331M00 are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings. The BPSF00101045331M00 additionally carries REACH Unaffected status. Both components are suitable for applications requiring environmental and regulatory compliance in standard manufacturing environments.

Q: What should be considered when evaluating the lower current rating of the substitute?

A: The BPSF00101045331M00 current rating of 580 mA is 60 mA lower than the NS10145T331MNA rating of 640 mA. Applications operating at continuous currents below 580 mA experience no performance impact. Applications requiring currents between 580 mA and 640 mA require thermal analysis to confirm that the substitute's lower saturation current (540 mA) and improved DC resistance (680 mOhm) provide acceptable performance margins for the specific circuit topology and thermal environment.