CLF6045T-151M Equivalent & Substitute Parts

Part Overview

The CLF6045T-151M is a 150 µH shielded drum core, wirewound inductor manufactured by TDK Corporation, rated for 600 mA continuous current with a maximum DC resistance of 576 mOhm. This surface mount component operates across the temperature range of -40°C to 105°C and is designed for applications requiring stable inductance at 100 kHz test frequency.

The CLF6045T-151M is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing production requirements, maintenance operations, and design continuity for systems currently utilizing this component.

Substiute Parts

CLF6045T-151M

TDK CorporationIn Stock: 1172CLF6045T-151M Datasheet

Current PartRFQ

VLS6045EX-151M

TDK CorporationIn Stock: 26174VLS6045EX-151M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CLF6045T-151M is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 150 µH (exact match required)
• Inductance tolerance: ±20% (matching tolerance band)
• Core type: Ferrite drum core, wirewound, shielded
• Mounting type: Surface Mount
• Operating temperature range: -40°C to 105°C minimum
• Test frequency: 100 kHz

Secondary Compatibility Criteria:

• Current rating: Equal to or greater than 600 mA
• Saturation current: Equal to or greater than 500 mA
• DC resistance: Within acceptable limits for circuit performance
• Package dimensions: Compatible with PCB layout constraints

The VLS6045EX-151M meets all primary matching criteria and exceeds secondary compatibility requirements, qualifying it as a direct substitute for the obsolete CLF6045T-151M.

Parameter Comparison

Engineering Selection Recommendations

The VLS6045EX-151M is the qualified substitute for the obsolete CLF6045T-151M based on the following engineering factors:

Product Status: The VLS6045EX-151M carries Active product status, ensuring continued availability and manufacturing support. The CLF6045T-151M is obsolete and subject to discontinuation.

Electrical Compatibility: Both components maintain identical inductance values (150 µH) and tolerance specifications (±20%). The VLS6045EX-151M provides higher current ratings (700 mA vs. 600 mA) and saturation current (900 mA vs. 500 mA), offering improved headroom for circuit operation.

Compliance and Certifications: The VLS6045EX-151M is ROHS3 compliant, meeting current regulatory requirements. Both components are REACH unaffected and carry EAR99 ECCN classification.

Physical and Thermal Characteristics: Operating temperature ranges are identical (-40°C to 105°C). Physical dimensions are comparable, with the substitute measuring 6.00mm × 6.00mm × 4.50mm (height) versus 6.20mm × 5.90mm × 4.80mm for the original part. Both are surface mount, nonstandard package types suitable for automated assembly.

DC Resistance Consideration: The VLS6045EX-151M exhibits higher DC resistance (760 mOhm vs. 576 mOhm max). Circuit designs must account for this 184 mOhm increase in resistive losses during thermal and performance analysis.

Frequently Asked Questions (FAQ)

Q: Can the VLS6045EX-151M directly replace the CLF6045T-151M without circuit modification?

A: The VLS6045EX-151M is electrically compatible as a direct substitute. Both components share identical inductance values, tolerance bands, core materials, shielding, and operating temperature ranges. However, the higher DC resistance of the substitute (760 mOhm vs. 576 mOhm) will increase resistive losses. Circuit thermal analysis should confirm acceptable performance under maximum current conditions.

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

A: The VLS6045EX-151M has 184 mOhm higher DC resistance than the CLF6045T-151M. At the rated 600 mA current, this results in approximately 0.064 mW additional power dissipation. For applications operating near thermal limits, this difference should be evaluated during design validation.

Q: Are there packaging differences between these parts?

A: The CLF6045T-151M packaging is not specified in available documentation. The VLS6045EX-151M is supplied in Tape & Reel (TR) format, the standard packaging for surface mount production. Physical dimensions differ slightly: VLS6045EX-151M measures 6.00mm × 6.00mm × 4.50mm versus CLF6045T-151M at 6.20mm × 5.90mm × 4.80mm. PCB layout verification is recommended to confirm fit within existing footprints.

Q: Does the substitute part meet current regulatory requirements?

A: Yes. The VLS6045EX-151M is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. The original CLF6045T-151M compliance status is not fully specified.

Q: Why does the substitute have higher current and saturation ratings?

A: The VLS6045EX-151M (700 mA / 900 mA Isat) provides enhanced performance margins compared to the CLF6045T-151M (600 mA / 500 mA Isat). This allows the substitute to operate safely at higher current levels without saturation, improving design flexibility and reliability.

Q: Is the substitute part actively manufactured?

A: Yes. The VLS6045EX-151M carries Active product status with 26,108 units in current inventory. The CLF6045T-151M is obsolete and no longer in production.