CLF6045T-331M Equivalent & Substitute Parts

Part Overview

The CLF6045T-331M is a 330 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 440 mA continuous current with a maximum DC resistance of 1.164 Ohm. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part operates across the temperature range of -40°C to 105°C and is designed for surface mount applications in nonstandard packaging.

Substiute Parts

CLF6045T-331M

TDK CorporationIn Stock: 884CLF6045T-331M Datasheet

Current PartRFQ

ASPIAIG-S6055-331M-T

Abracon LLCIn Stock: 1978ASPIAIG-S6055-331M-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CLF6045T-331M is determined by the following critical parameters:

• Inductance Value: 330 µH with ±20% tolerance
• Current Rating: Minimum 440 mA continuous current capability
• Saturation Current: Minimum 350 mA
• DC Resistance: Maximum 1.164 Ohm to maintain circuit performance
• Core Type: Shielded drum core wirewound construction
• Mounting: Surface mount, nonstandard package
• Temperature Range: Operating capability within -40°C to 105°C minimum
• Inductance Measurement Frequency: 100 kHz

The ASPIAIG-S6055-331M-T from Abracon LLC meets these substitution criteria with equivalent inductance and shielding characteristics. While the substitute part offers higher current rating (600 mA) and lower saturation current specification (650 mA), it maintains the same inductance value and tolerance band, ensuring functional compatibility in circuits designed for the original part.

Parameter Comparison

Engineering Selection Recommendations

The ASPIAIG-S6055-331M-T is suitable as a direct substitute for the CLF6045T-331M based on the following factors:

Product Status: The original CLF6045T-331M is obsolete, while the ASPIAIG-S6055-331M-T maintains active production status, ensuring long-term availability and supply chain continuity.

Electrical Compatibility: Both parts share identical inductance values (330 µH) and tolerance specifications (±20%), meeting the core functional requirement. The substitute part's higher current rating (600 mA versus 440 mA) and elevated saturation current (650 mA versus 350 mA) provide additional design margin without compromising circuit operation.

Compliance and Certifications: The ASPIAIG-S6055-331M-T carries AEC-Q200 qualification and ROHS3 compliance, meeting automotive and environmental standards. Both parts maintain REACH Unaffected status and EAR99 export classification.

Temperature Performance: The substitute part extends the upper operating temperature limit to 125°C, compared to the original 105°C specification, providing enhanced thermal margin for demanding applications.

Physical Compatibility: Both components utilize nonstandard surface mount packaging with comparable dimensions, supporting direct board-level substitution.

Frequently Asked Questions (FAQ)

Q: Can the ASPIAIG-S6055-331M-T replace the CLF6045T-331M in existing designs?

A: Yes. Both parts maintain 330 µH inductance with ±20% tolerance at 100 kHz test frequency. The substitute part's higher current rating and saturation current provide additional operational margin. Physical dimensions are comparable, supporting direct substitution on existing PCB layouts.

Q: What is the impact of the higher DC resistance in the substitute part?

A: The ASPIAIG-S6055-331M-T has 1.603 Ohm DCR compared to 1.164 Ohm maximum for the original part. This 0.439 Ohm difference will increase resistive losses in the inductor. Circuit designers must verify that this additional loss does not exceed thermal or efficiency requirements for their specific application.

Q: Are there packaging differences between these parts?

A: Both parts use nonstandard surface mount packaging. Physical dimensions are similar: CLF6045T-331M measures 6.20mm × 5.90mm × 4.80mm height, while ASPIAIG-S6055-331M-T measures 6.00mm × 6.00mm × 5.70mm height. Verify PCB footprint compatibility before implementation.

Q: What core material differences exist between these inductors?

A: The CLF6045T-331M uses ferrite core material, while the ASPIAIG-S6055-331M-T uses Nickel Zinc Ferrite (NiZn). Both are shielded drum core constructions. NiZn ferrite typically offers higher frequency performance and lower core losses at higher frequencies, with a self-resonant frequency of 2.8 MHz specified for the substitute part.

Q: Does the substitute part meet automotive qualification requirements?

A: The ASPIAIG-S6055-331M-T carries AEC-Q200 qualification, meeting automotive industry standards. The original CLF6045T-331M does not list this certification. If AEC-Q200 compliance is required, the substitute part satisfies this requirement.

Q: What is the significance of the extended temperature range in the substitute part?

A: The ASPIAIG-S6055-331M-T operates to 125°C maximum, compared to 105°C for the original part. This provides 20°C additional thermal margin, beneficial for applications in high-temperature environments or with limited thermal management.