CLF7045T-2R2N-H Equivalent & Substitute Parts

Part Overview

The CLF7045T-2R2N-H is a 2.2 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 4.3 A continuous current with a DC resistance of 14.6 mOhm. This surface mount component is designed for applications requiring compact, high-current inductive filtering in the 7.20mm × 6.90mm footprint.

The CLF7045T-2R2N-H carries a "Not For New Designs" product status, indicating it has been superseded in TDK's current product portfolio. Identifying qualified substitute parts ensures design continuity and maintains supply chain reliability for existing applications or legacy system support.

Substiute Parts

CLF7045T-2R2N-H

TDK CorporationIn Stock: 2146CLF7045T-2R2N-H Datasheet

Current PartRFQ

LGJ7045TC-2R2N-H

TDK CorporationIn Stock: 1740LGJ7045TC-2R2N-H Datasheet

DirectRFQ

CLF7045NIT-2R2N-D

TDK CorporationIn Stock: 2065CLF7045NIT-2R2N-D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CLF7045T-2R2N-H is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 2.2 µH (exact match required)
• Core type: Ferrite drum core, wirewound
• Shielding: Shielded configuration
• Mounting: Surface mount, nonstandard package footprint
• Inductance tolerance: ±30%
• Test frequency: 100 kHz

Current and Thermal Compatibility:

• Minimum continuous current rating: 4.3 A or higher
• Saturation current (Isat): 5.5 A or higher
• DC resistance: 14.6 mOhm or lower (lower DCR preferred for thermal performance)
• Operating temperature range: Must encompass -40°C ~ 125°C minimum

Compliance and Packaging:

• RoHS3 compliance required
• MSL rating: 1 (Unlimited) acceptable
• Packaging format: Tape & Reel (TR) or Cut Tape (CT) formats compatible with assembly processes

The identified substitutes meet these criteria while offering improved or equivalent electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

CLF7045NIT-2R2N-D (Manufacturer Recommended Substitute):

The CLF7045NIT-2R2N-D is the primary recommended substitute. This part carries Active product status, ensuring long-term availability and supply chain stability. It provides enhanced electrical performance with a 5.1 A continuous current rating and 6.2 A saturation current, exceeding the original part's specifications. The extended operating temperature range (-55°C ~ 150°C) accommodates broader thermal environments. AEC-Q200 automotive qualification provides additional reliability assurance. The footprint increase (7.40mm × 7.00mm × 4.80mm) is minimal and remains compatible with standard surface mount assembly processes. This part is suitable for new designs and ongoing production.

LGJ7045TC-2R2N-H (Direct Electrical Equivalent):

The LGJ7045TC-2R2N-H provides identical electrical specifications to the CLF7045T-2R2N-H, including 4.3 A current rating and 14.6 mOhm DC resistance. It maintains the same footprint dimensions and operating temperature range. However, this part carries Obsolete product status, indicating limited future availability. It includes AEC-Q200 certification. Packaging is supplied in Cut Tape (CT) & Digi-Reel® format rather than standard Tape & Reel. This part is suitable only for legacy system support or short-term production runs where inventory is confirmed available.

Selection Criteria:

For new designs or long-term production: CLF7045NIT-2R2N-D is the preferred choice due to Active status and enhanced performance margins.

For legacy system maintenance with confirmed inventory: LGJ7045TC-2R2N-H provides direct electrical equivalence.

Both substitutes maintain ROHS3 compliance and MSL rating 1 (Unlimited) compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can CLF7045NIT-2R2N-D be used as a direct drop-in replacement for CLF7045T-2R2N-H?

A: Yes, with minor PCB layout consideration. The CLF7045NIT-2R2N-D maintains the same 2.2 µH inductance, shielding, and core material. The footprint increases from 7.20mm × 6.90mm to 7.40mm × 7.00mm, and height increases from 4.50mm to 4.80mm. These dimensional changes are within typical PCB design tolerances for surface mount assembly. Electrical performance is superior, with higher current ratings and extended temperature range.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

A: Tape & Reel (TR) packaging supplies components on continuous carrier tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) supplies components on cut segments of carrier tape, typically used for lower-volume or manual assembly processes. Both formats are compatible with standard pick-and-place equipment. The LGJ7045TC-2R2N-H is supplied in Cut Tape & Digi-Reel® format, while CLF7045NIT-2R2N-D uses standard Tape & Reel.

Q: Why is CLF7045T-2R2N-H marked "Not For New Designs"?

A: This designation indicates the part has been superseded by newer alternatives in TDK's product line. The CLF7045NIT-2R2N-D represents the current generation with improved specifications and extended availability. New designs should incorporate the recommended substitute to ensure long-term supply chain support and access to manufacturing improvements.

Q: Are there thermal performance differences between the substitutes?

A: The CLF7045NIT-2R2N-D has a maximum DC resistance of 17 mOhm compared to 14.6 mOhm for the original part. This represents a 16% increase in resistive losses. However, the higher current rating (5.1 A vs. 4.3 A) and saturation current (6.2 A vs. 5.5 A) provide greater thermal margin in typical operating conditions. The extended temperature range (-55°C ~ 150°C) accommodates more demanding thermal environments.

Q: Do all substitutes maintain RoHS3 compliance?

A: Yes. Both CLF7045NIT-2R2N-D and LGJ7045TC-2R2N-H are ROHS3 compliant, matching the original CLF7045T-2R2N-H specification. All three parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: What certifications apply to these inductors?

A: The CLF7045T-2R2N-H lists no specific certifications. Both substitutes include AEC-Q200 automotive qualification, which provides additional reliability assurance for high-reliability applications. AEC-Q200 certification indicates the parts have undergone automotive-grade stress testing and qualification protocols.