CLF6045T-331M-H Equivalent & Substitute Parts

Part Overview

The CLF6045T-331M-H is a 330 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 440 mA continuous current with 970mOhm DC resistance. This component is classified as Not For New Designs, indicating it has been superseded in TDK's product portfolio. Finding equivalent substitute parts is necessary for applications requiring continued supply, design updates, or performance optimization while maintaining the 330 µH inductance specification and shielded ferrite core construction.

Substiute Parts

CLF6045T-331M-H

TDK CorporationIn Stock: 3186CLF6045T-331M-H Datasheet

Current PartRFQ

CLF6045NIT-331M-D

TDK CorporationIn Stock: 1139CLF6045NIT-331M-D Datasheet

MFR RecommendedRFQ

CLF7045NIT-331M-D

TDK CorporationIn Stock: 1675CLF7045NIT-331M-D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CLF6045T-331M-H must maintain the following core electrical parameters: 330 µH inductance at ±20% tolerance, ferrite shielded drum core construction, and surface mount configuration. The substitution logic is based on compatibility within these fixed parameters.

Two substitute parts are identified:

CLF6045NIT-331M-D: Maintains identical inductance (330 µH), tolerance (±20%), core type (ferrite shielded drum core), and mounting type (surface mount). Differs in current rating (360 mA vs. 440 mA), DC resistance (1.1Ohm Max vs. 970mOhm), packaging format (Cut Tape vs. Tape & Reel), and product status (Active vs. Not For New Designs).

CLF7045NIT-331M-D: Maintains identical inductance (330 µH), tolerance (±20%), core type (ferrite shielded drum core), and mounting type (surface mount). Differs in current rating (500 mA vs. 440 mA), DC resistance (960mOhm Max vs. 970mOhm), physical dimensions (larger package), packaging format (Cut Tape & Digi-Reel vs. Tape & Reel), and product status (Active vs. Not For New Designs).

Parameter Comparison

Engineering Selection Recommendations

CLF7045NIT-331M-D is the preferred substitute for the CLF6045T-331M-H in new applications and redesigns. This part maintains DC resistance within 1% of the original specification (960mOhm Max vs. 970mOhm), supports a higher current rating (500 mA vs. 440 mA), and carries AEC-Q200 automotive qualification. The extended operating temperature range (-55°C ~ 150°C vs. -40°C ~ 125°C) provides additional thermal margin. Product status is Active, ensuring long-term availability and supply continuity.

CLF6045NIT-331M-D is suitable only for applications where the 360 mA current rating is sufficient and lower DC resistance (1.1Ohm Max) is acceptable. The increased DCR represents a 13% rise compared to the original part and may impact thermal performance in current-limited applications. This substitute offers the closest physical footprint to the original CLF6045T-331M-H.

Both substitutes are ROHS3 compliant and maintain the shielded ferrite drum core construction required for electromagnetic compatibility.

Frequently Asked Questions (FAQ)

Q: Can CLF6045NIT-331M-D replace CLF6045T-331M-H in all applications?

A: CLF6045NIT-331M-D maintains identical inductance, tolerance, and core type. However, the 360 mA current rating is lower than the original 440 mA specification. Applications operating at or above 360 mA continuous current require CLF7045NIT-331M-D instead.

Q: What is the impact of DC resistance differences between the substitutes?

A: CLF6045NIT-331M-D exhibits 1.1Ohm Max DCR, representing a 13% increase over the original 970mOhm specification. CLF7045NIT-331M-D maintains 960mOhm Max DCR, within 1% of the original. Higher DCR increases power dissipation and heat generation. Applications sensitive to thermal performance should prioritize CLF7045NIT-331M-D.

Q: Are the physical dimensions compatible with the original PCB layout?

A: CLF6045NIT-331M-D footprint (6.30mm x 6.00mm) is nearly identical to CLF6045T-331M-H (6.20mm x 5.90mm) and compatible with existing PCB layouts. CLF7045NIT-331M-D footprint (7.40mm x 7.00mm) is larger and may require PCB redesign.

Q: What certifications do the substitute parts carry?

A: Both CLF6045NIT-331M-D and CLF7045NIT-331M-D carry AEC-Q200 automotive qualification. The original CLF6045T-331M-H carries no specified ratings. All three parts are ROHS3 compliant.

Q: Why is CLF6045T-331M-H marked as Not For New Designs?

A: This designation indicates the part has been superseded in TDK's active product line. CLF6045NIT-331M-D and CLF7045NIT-331M-D are the recommended active alternatives with extended product lifecycle support.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging is supplied on continuous reels for automated assembly. Cut Tape (CT) packaging is supplied in individual tape segments. Digi-Reel® is a TDK proprietary format combining benefits of both formats. Packaging selection depends on assembly equipment and order quantity requirements.