CLF7045T-150M-H Equivalent & Substitute Parts

Part Overview

The CLF7045T-150M-H is a 15 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 2.3 A continuous current with 51 mOhm 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 This component is classified as Not For New Designs, indicating it has been superseded in TDK's product portfolio.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 component availability optimization while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Inductance	15 µH
Current Rating	2.3 A
DC Resistance (DCR)	51 mOhm
Shielding	Shielded
Core Material	Ferrite
Mounting Type	Surface Mount
Operating Temperature Range	-40°C ~ 125°C
Tolerance	±20%
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the CLF7045T-150M-H are qualified based on the following critical parameters:

Inductance Value: Must be 15 µH (exact match)
Current Rating: Must support minimum 2.3 A continuous current
Shielding: Must be shielded to maintain EMI performance
Core Material: Ferrite core construction
Mounting Type: Surface mount configuration
DC Resistance: Must be within acceptable operating limits for the application (51 mOhm reference)
RoHS Compliance: ROHS3 compliant status required

The two qualified substitutes meet these core electrical and mechanical requirements while offering improved product status or enhanced performance characteristics.

Parameter Comparison

Parameter	CLF7045T-150M-H (Main)	CLF7045NIT-150M-D (Substitute 1)	CDRH8D43NP-150NC (Substitute 2)
Manufacturer	TDK Corporation	TDK Corporation	Sumida America Components Inc.
Inductance	15 µH	15 µH	15 µH
Current Rating (Amps)	2.3 A	2.3 A	2.3 A
Current - Saturation (Isat)	2.1 A	2.3 A	2.9 A
DC Resistance (DCR)	51 mOhm	66 mOhm Max	53 mOhm Max
Tolerance	±20%	±20%	±30%
Shielding	Shielded	Shielded	Shielded
Core Material	Ferrite	Ferrite	Ferrite
Operating Temperature Range	-40°C ~ 125°C	-55°C ~ 150°C	-40°C ~ 100°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Not For New Designs	Active	Active
Ratings	-	AEC-Q200	-
Size / Dimension (L x W)	0.283" x 0.272" (7.20mm x 6.90mm)	0.291" x 0.276" (7.40mm x 7.00mm)	0.315" x 0.315" (8.00mm x 8.00mm)
Height - Seated (Max)	0.177" (4.50mm)	0.189" (4.80mm)	0.177" (4.50mm)

Engineering Selection Recommendations

CLF7045NIT-150M-D (TDK Corporation): This substitute is the primary recommendation for applications requiring continued TDK sourcing. It maintains the same inductance, current rating, and tolerance as the main part while offering Active product status. The CLF7045NIT-150M-D includes AEC-Q200 automotive qualification and operates across an extended temperature range (-55°C ~ 150°C). DC resistance increases to 66 mOhm maximum, and saturation current improves to 2.3 A. Physical dimensions are slightly larger (7.40mm x 7.00mm vs. 7.20mm x 6.90mm), requiring PCB layout verification. ROHS3 compliance is maintained.

CDRH8D43NP-150NC (Sumida America Components Inc.): This substitute provides an alternative from a different manufacturer with Active product status. It matches the inductance and current rating while offering superior saturation current (2.9 A). DC resistance is 53 mOhm maximum, closer to the original specification. The component operates within a narrower temperature range (-40°C ~ 100°C), matching the main part's lower bound. Physical dimensions are larger (8.00mm x 8.00mm), requiring PCB footprint assessment. Tolerance is ±30% versus ±20% for the main part. ROHS3 compliance is confirmed.

Frequently Asked Questions (FAQ)

Q: Can CLF7045NIT-150M-D be used as a direct replacement for CLF7045T-150M-H?

A: CLF7045NIT-150M-D is electrically compatible based on matching inductance (15 µH), current rating (2.3 A), and shielding. DC resistance increases from 51 mOhm to 66 mOhm maximum, which may affect circuit performance in applications with tight power loss budgets. Physical dimensions are slightly larger (7.40mm x 7.00mm vs. 7.20mm x 6.90mm), requiring PCB layout verification before implementation.

Q: What are the key differences in DC resistance between the three parts?

A: The main part CLF7045T-150M-H specifies 51 mOhm. CLF7045NIT-150M-D increases to 66 mOhm maximum, while CDRH8D43NP-150NC is 53 mOhm maximum. Higher DC resistance increases power dissipation and heat generation at rated current. Applications sensitive to resistive losses should evaluate the impact of these variations.

Q: Are there physical footprint compatibility concerns?

A: Yes. The main part measures 7.20mm x 6.90mm. CLF7045NIT-150M-D is 7.40mm x 7.00mm, and CDRH8D43NP-150NC is 8.00mm x 8.00mm. Height remains consistent at 4.50mm for the main part and CDRH8D43NP-150NC, while CLF7045NIT-150M-D is 4.80mm. PCB layout and component placement must be verified for each substitute.

Q: Which substitute is recommended for automotive applications?

A: CLF7045NIT-150M-D includes AEC-Q200 automotive qualification, making it suitable for automotive-grade applications. CDRH8D43NP-150NC does not specify automotive ratings.

Q: How do operating temperature ranges compare?

A: The main part operates -40°C ~ 125°C. CLF7045NIT-150M-D extends to -55°C ~ 150°C, providing wider temperature coverage. CDRH8D43NP-150NC operates -40°C ~ 100°C, with a reduced upper limit. Application temperature requirements should determine the appropriate substitute.

Q: What is the significance of the ±30% tolerance on CDRH8D43NP-150NC?

A: CDRH8D43NP-150NC specifies ±30% inductance tolerance compared to ±20% for the main part and CLF7045NIT-150M-D. This wider tolerance may affect circuit performance in applications requiring tighter inductance control. Circuit simulation or testing is necessary to confirm acceptability.

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