CLF6045T-150M Equivalent & Substitute Parts

Part Overview

The CLF6045T-150M is a 15 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 2 A continuous current with a maximum DC resistance of 66 mOhm. This surface mount component operates across the temperature range of -40°C to 105°C and is designed for applications requiring fixed inductance in compact form factors.

The CLF6045T-150M is classified as obsolete. Identifying suitable substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	Value
Inductance	15 µH
Inductance Tolerance	±20%
Current Rating	2 A
Current - Saturation (Isat)	1.5 A
DC Resistance (DCR)	66 mOhm Max
Core Material	Ferrite
Shielding	Shielded
Operating Temperature Range	-40°C to 105°C
Mounting Type	Surface Mount
Package Type	Nonstandard
Inductance Test Frequency	100 kHz

Substitute Part Grouping Explanation

Substitution of the CLF6045T-150M is based on the following critical parameters:

Inductance Value: Must be 15 µH with ±20% tolerance
Core Type & Shielding: Must maintain ferrite core material with shielded construction
Current Rating: Substitute must support minimum 2 A continuous current
Saturation Current: Substitute saturation current must meet or exceed application requirements
DC Resistance: Substitute DCR must not exceed design thermal and efficiency limits
Operating Temperature: Must support -40°C to 105°C range
Mounting & Package: Must be surface mount compatible with board layout constraints
Test Frequency: Inductance measured at 100 kHz

The VLS6045EX-150M meets these substitution criteria with equivalent electrical performance and improved current handling capability.

Parameter Comparison

Parameter	CLF6045T-150M	VLS6045EX-150M	Compatibility
Manufacturer	TDK Corporation	TDK Corporation	Same
Inductance	15 µH	15 µH	Equivalent
Inductance Tolerance	±20%	±20%	Equivalent
Current Rating (Amps)	2 A	2.5 A	Substitute exceeds requirement
Current - Saturation (Isat)	1.5 A	3.1 A	Substitute exceeds requirement
DC Resistance (DCR)	66 mOhm Max	75 mOhm	Substitute within acceptable range
Core Material	Ferrite	Ferrite	Equivalent
Shielding	Shielded	Shielded	Equivalent
Operating Temperature Range	-40°C to 105°C	-40°C to 105°C	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Package Type	Nonstandard	Nonstandard	Equivalent
Inductance Test Frequency	100 kHz	100 kHz	Equivalent
Product Status	Obsolete	Active	Substitute is active

Engineering Selection Recommendations

The VLS6045EX-150M is the direct substitute for the obsolete CLF6045T-150M. Both components are manufactured by TDK Corporation and share identical inductance specifications, core material, shielding configuration, and operating temperature range.

The VLS6045EX-150M offers improved specifications with higher current rating (2.5 A vs. 2 A) and higher saturation current (3.1 A vs. 1.5 A), providing enhanced performance margin. The DC resistance of 75 mOhm is marginally higher than the CLF6045T-150M maximum of 66 mOhm, remaining within acceptable design tolerances for most applications.

The VLS6045EX-150M is classified as active product status, ensuring long-term availability and supply chain continuity. The component is ROHS3 compliant and carries REACH Unaffected status, meeting current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the VLS6045EX-150M directly replace the CLF6045T-150M in existing designs?

A: Yes. Both components share identical inductance values (15 µH ±20%), core material (ferrite), shielding configuration, operating temperature range (-40°C to 105°C), and mounting type (surface mount). The VLS6045EX-150M provides equivalent electrical performance with improved current handling.

Q: What is the impact of the higher DC resistance in the VLS6045EX-150M?

A: The VLS6045EX-150M has a DC resistance of 75 mOhm compared to the CLF6045T-150M maximum of 66 mOhm. This 9 mOhm difference represents approximately 13.6% higher resistance. Thermal dissipation impact depends on circuit current levels and duty cycle. For 2 A operation, the additional power loss is approximately 36 mW, which is typically acceptable in most applications.

Q: Are there physical dimension differences between these components?

A: Minor dimensional variations exist. The CLF6045T-150M measures 0.244" L × 0.232" W × 0.189" H (6.20mm × 5.90mm × 4.80mm). The VLS6045EX-150M measures 0.236" L × 0.236" W × 0.177" H (6.00mm × 6.00mm × 4.50mm). Both are nonstandard packages. Verify PCB footprint compatibility before implementation.

Q: What is the significance of the higher saturation current in the VLS6045EX-150M?

A: The VLS6045EX-150M saturation current is 3.1 A compared to 1.5 A in the CLF6045T-150M. This indicates improved core material performance and allows the substitute to maintain inductance stability at higher current levels without saturation-induced inductance loss.

Q: Are there packaging or supply differences?

A: The VLS6045EX-150M is supplied in Cut Tape (CT) and Digi-Reel® packaging with 4242 pieces in stock. The CLF6045T-150M is obsolete with limited remaining inventory. The VLS6045EX-150M active product status ensures consistent availability.

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