SLF10145T-150M2R2-H Equivalent & Substitute Parts

Part Overview

The SLF10145T-150M2R2-H is a 15 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 2.2 A continuous current with a maximum DC resistance of 56.64 mOhm. This component is classified as Not For New Designs, indicating it has been superseded in TDK's product portfolio. Finding equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and access components with improved electrical characteristics or extended temperature operating ranges.

Substiute Parts

SLF10145T-150M2R2-H

TDK CorporationIn Stock: 1303SLF10145T-150M2R2-H Datasheet

Current PartRFQ

CLF10040T-150M-D

TDK CorporationIn Stock: 4716CLF10040T-150M-D Datasheet

MFR RecommendedRFQ

CLF10060NIT-150M-D

TDK CorporationIn Stock: 1770CLF10060NIT-150M-D Datasheet

MFR RecommendedRFQ

PF0560.153NLT

Pulse ElectronicsIn Stock: 2494PF0560.153NLT Datasheet

MFR RecommendedRFQ

SRR1205-150ML

Bourns Inc.In Stock: 958SRR1205-150ML Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SLF10145T-150M2R2-H is determined by the following critical parameters:

• Inductance Value: Must be 15 µH (exact match required)
• Inductance Tolerance: ±20% or tighter acceptable
• Current Rating: Must meet or exceed 2.2 A minimum
• DC Resistance: Lower or equal to 56.64 mOhm preferred for thermal performance
• Core Type: Ferrite drum core wirewound construction
• Shielding: Shielded configuration required
• Operating Temperature: Minimum -40°C to 125°C range
• Mounting Type: Surface mount only
• Compliance: AEC-Q200 and ROHS3 required

The four substitute parts listed below meet these core substitution criteria while offering improvements in current handling capacity, reduced DC resistance, or extended temperature ranges.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: CLF10040T-150M-D

The CLF10040T-150M-D is the preferred substitute for new designs. It maintains TDK manufacturing continuity, carries Active product status, and provides improved electrical performance with 48 mOhm maximum DCR compared to the original 56.64 mOhm. The current rating of 2.5 A exceeds the 2.2 A requirement, and the extended operating temperature range of -40°C to 150°C provides additional thermal margin. AEC-Q200 certification and ROHS3 compliance are maintained.

Secondary Recommendation: CLF10060NIT-150M-D

The CLF10060NIT-150M-D offers the lowest DC resistance at 36 mOhm maximum and the highest current rating at 3.3 A, providing superior thermal performance and current headroom. Extended temperature range of -55°C to 150°C supports demanding applications. However, this part carries Last Time Buy status, limiting long-term availability. Cut Tape packaging may require additional handling considerations compared to Tape & Reel format.

Alternative Recommendation: PF0560.153NLT

The PF0560.153NLT from Pulse Electronics meets all core substitution criteria with 3.1 A current rating and 50 mOhm DCR. This part is Active and ROHS3 compliant. Note that AEC-Q200 certification is not listed, and inductance tolerance is ±30% compared to ±20% for the original part. This option is suitable for applications where automotive qualification is not required.

Not Recommended for New Designs: SRR1205-150ML

While the SRR1205-150ML from Bourns Inc. is Active and meets substitution criteria, it exhibits higher DC resistance at 70 mOhm compared to the original 56.64 mOhm, resulting in increased thermal dissipation. AEC-Q200 certification is not provided. This part is suitable only for applications where thermal performance is not critical and automotive qualification is not required.

Frequently Asked Questions (FAQ)

Q: Can I use CLF10060NIT-150M-D as a direct replacement despite Last Time Buy status?

A: CLF10060NIT-150M-D meets all electrical and mechanical substitution criteria and is functionally compatible. However, Last Time Buy status indicates limited future availability. For new designs, CLF10040T-150M-D is recommended due to Active status and assured long-term supply.

Q: What is the impact of ±30% inductance tolerance in PF0560.153NLT compared to ±20% in the original part?

A: The wider tolerance in PF0560.153NLT may result in greater inductance variation across production batches. Applications requiring tight inductance control should verify compatibility through circuit simulation or testing before implementation.

Q: Does the higher DC resistance in SRR1205-150ML affect thermal performance?

A: Yes. At 70 mOhm maximum, the SRR1205-150ML generates approximately 23% more heat than the original part at 2.2 A continuous current. Thermal analysis is required for applications with limited thermal dissipation capability.

Q: Are all substitute parts available in Tape & Reel packaging?

A: CLF10040T-150M-D, PF0560.153NLT, and SRR1205-150ML are supplied in Tape & Reel format. CLF10060NIT-150M-D is supplied in Cut Tape format, which may require different handling and storage procedures.

Q: Which substitute part provides the best current margin above the 2.2 A requirement?

A: CLF10060NIT-150M-D offers the highest current rating at 3.3 A, providing 50% margin above the 2.2 A requirement. CLF10040T-150M-D provides 13.6% margin at 2.5 A, and PF0560.153NLT provides 40.9% margin at 3.1 A.

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

A: AEC-Q200 certification is mandatory for automotive applications. CLF10040T-150M-D and CLF10060NIT-150M-D maintain this certification. PF0560.153NLT and SRR1205-150ML do not carry AEC-Q200 certification and are unsuitable for automotive use.