CLF7045T-100M Equivalent & Substitute Parts

Part Overview

The CLF7045T-100M is a 10 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 2.5 A continuous current with a maximum DC resistance of 45.6 mOhm. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain the same inductance value, shielding characteristics, and operating temperature range while meeting current application demands.

Substiute Parts

CLF7045T-100M

TDK CorporationIn Stock: 2766CLF7045T-100M Datasheet

Current PartRFQ

VLS6045EX-100M

TDK CorporationIn Stock: 261863VLS6045EX-100M Datasheet

MFR RecommendedRFQ

CDRR75NP-100MC

Sumida America Components Inc.In Stock: 861CDRR75NP-100MC Datasheet

MFR RecommendedRFQ

CDRR7D45T125NP-100MC

Sumida America Components Inc.In Stock: 939CDRR7D45T125NP-100MC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CLF7045T-100M are qualified based on the following criteria:

Core Electrical Parameters: All substitutes must maintain 10 µH inductance at ±20% tolerance and operate at 100 kHz test frequency. The inductance value is the primary functional requirement.

Current Handling: Substitute parts must support the application's current requirements. The original part specifies 2.5 A continuous current rating. Substitutes with equal or higher current ratings are acceptable.

DC Resistance: DCR values must be compatible with the application's thermal and efficiency requirements. Lower DCR values indicate improved performance characteristics.

Shielding and Core Type: All substitutes maintain ferrite core construction with shielding to prevent electromagnetic interference.

Environmental Specifications: Operating temperature range and moisture sensitivity must meet or exceed the original part's specifications.

Mechanical Compatibility: Surface mount packaging and nonstandard case dimensions must accommodate the PCB layout constraints.

Parameter Comparison

Engineering Selection Recommendations

VLS6045EX-100M (TDK Corporation): This active product from the original manufacturer offers improved current handling at 3.4 A with comparable DCR of 47 mOhm. It maintains the same operating temperature range and test frequency. ROHS3 compliance and active product status make this the primary recommended substitute for new designs. Smaller physical dimensions (6.00mm x 6.00mm vs. 7.20mm x 6.90mm) may require PCB layout verification.

CDRR75NP-100MC (Sumida America Components Inc.): This active product maintains electrical compatibility with a 2.4 A current rating and 57 mOhm DCR. Extended operating temperature range to 125°C provides additional thermal margin. ROHS3 compliance and active status support long-term availability. Identical physical dimensions to the original part simplify PCB integration.

CDRR7D45T125NP-100MC (Sumida America Components Inc.): This active product includes AEC-Q200 automotive qualification, indicating suitability for automotive and high-reliability applications. The 2.25 A current rating and 47 mOhm DCR provide electrical performance comparable to the original part. Extended operating temperature to 125°C and RoHS compliance support demanding environments. Slightly larger height (5.10mm vs. 4.80mm) requires clearance verification.

Frequently Asked Questions (FAQ)

Q: Can VLS6045EX-100M replace CLF7045T-100M in all applications?

A: VLS6045EX-100M maintains the same inductance, tolerance, operating temperature range, and test frequency as the original part. The higher current rating (3.4 A vs. 2.5 A) and lower DCR (47 mOhm vs. 45.6 mOhm) provide improved performance. However, the smaller physical footprint (6.00mm x 6.00mm vs. 7.20mm x 6.90mm) requires PCB layout verification to ensure component clearance and thermal management compatibility.

Q: What is the difference between CDRR75NP-100MC and CDRR7D45T125NP-100MC?

A: Both parts are from Sumida and maintain 10 µH inductance with ±20% tolerance. CDRR75NP-100MC offers 2.4 A current rating with 57 mOhm DCR and identical physical dimensions to the original part. CDRR7D45T125NP-100MC provides 2.25 A current rating with 47 mOhm DCR and includes AEC-Q200 automotive qualification. The latter has a slightly larger height (5.10mm vs. 4.80mm) and is suitable for automotive and high-reliability applications.

Q: Are all substitute parts RoHS compliant?

A: VLS6045EX-100M and CDRR75NP-100MC are ROHS3 compliant. CDRR7D45T125NP-100MC is RoHS compliant. All three substitutes meet environmental compliance requirements for modern manufacturing standards.

Q: What is the impact of DCR differences on circuit performance?

A: DCR affects power dissipation and thermal performance. The original CLF7045T-100M specifies 45.6 mOhm maximum DCR. VLS6045EX-100M and CDRR7D45T125NP-100MC both provide 47 mOhm DCR, representing minimal performance difference. CDRR75NP-100MC specifies 57 mOhm maximum DCR, resulting in approximately 25% higher resistive losses at rated current. Selection depends on thermal budget and efficiency requirements.

Q: Do all substitutes support the same operating temperature range?

A: The original CLF7045T-100M operates from -40°C to 105°C. VLS6045EX-100M maintains this range. CDRR75NP-100MC and CDRR7D45T125NP-100MC extend the upper limit to 125°C, providing additional thermal margin for high-temperature applications.

Q: Is AEC-Q200 qualification required for my application?

A: AEC-Q200 qualification indicates automotive-grade reliability and is required for automotive and safety-critical applications. CDRR7D45T125NP-100MC carries this certification. For non-automotive applications, AEC-Q200 qualification is not necessary, and other substitutes remain suitable.