L1007C101MPWIT Equivalent & Substitute Parts

Part Overview

The L1007C101MPWIT is a 100 µH unshielded drum core wirewound inductor manufactured by KEMET in the 1007 (2518 Metric) surface mount package. This component is rated for 100 mA continuous current with a DC resistance of 3.7 Ohm and operates across the temperature range of -40°C to 105°C. The part carries an Obsolete product status, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

L1007C101MPWIT

KEMETIn Stock: 1118L1007C101MPWIT Datasheet

Current PartRFQ

CBC2518T101M

Taiyo YudenIn Stock: 1319CBC2518T101M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L1007C101MPWIT is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 100 µH
• Inductance tolerance: ±20%
• Package / Case: 1007 (2518 Metric)
• Core type: Ferrite, Drum Core, Wirewound
• Shielding configuration: Unshielded
• Mounting type: Surface Mount
• Operating temperature range: -40°C to 105°C
• Self-resonant frequency: 9 MHz
• Inductance test frequency: 796 kHz

Allowable Variation Parameters:

• Current rating: Substitute must equal or exceed 100 mA
• DC resistance: Substitute may vary within component tolerance
• Product status: Substitute may differ from main part status
• Packaging format: Substitute may differ (e.g., Tape & Reel vs. bulk)

The CBC2518T101M from Taiyo Yuden satisfies all mandatory matching parameters and exceeds the current rating requirement at 170 mA, making it a valid electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

The CBC2518T101M from Taiyo Yuden is electrically and mechanically compatible with the L1007C101MPWIT. Both components are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent environmental performance and regulatory compliance.

The substitute part provides a higher current rating of 170 mA compared to the main part's 100 mA specification, offering improved headroom in current-limited applications. The DC resistance of 4.81 Ohm maximum is within the tolerance band established by the ±20% inductance specification and represents acceptable variation for ferrite drum core wirewound inductors in this package class.

Both the main part and substitute carry restricted product status designations. The L1007C101MPWIT is marked Obsolete, while the CBC2518T101M is marked Not For New Designs. Component selection should account for long-term availability and supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Can the CBC2518T101M be used as a direct replacement for the L1007C101MPWIT in existing designs?

A: Yes. Both components share identical inductance values, tolerances, package dimensions, core materials, and operating temperature ranges. The substitute part's higher current rating of 170 mA exceeds the original specification of 100 mA, providing additional design margin.

Q: What is the significance of the DC resistance difference between the two parts?

A: The L1007C101MPWIT specifies 3.7 Ohm while the CBC2518T101M specifies 4.81 Ohm maximum. This 1.11 Ohm difference falls within the ±20% inductance tolerance band typical for ferrite drum core inductors and does not constitute a functional incompatibility. Circuit designs should account for this resistance variation in power dissipation calculations.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both components are packaged in the 1007 (2518 Metric) case with identical dimensions of 0.098" L x 0.071" W (2.50mm x 1.80mm) and a maximum seated height of 0.079" (2.00mm). PCB footprints and assembly processes are interchangeable.

Q: What is the difference between the product status designations?

A: The L1007C101MPWIT carries an Obsolete status, indicating it is no longer manufactured or supported by KEMET. The CBC2518T101M carries a Not For New Designs status, indicating it remains available but is not recommended for new product development. Both designations reflect restricted availability and should inform long-term procurement strategy.

Q: Do both parts meet the same regulatory and environmental standards?

A: Yes. Both components are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings. Both are EAR99 classified for export control purposes. Regulatory and environmental performance are equivalent.

Q: What packaging formats are available for the CBC2518T101M?

A: The CBC2518T101M is supplied in Tape & Reel (TR) format. The original L1007C101MPWIT packaging format is not specified in the provided data. Procurement should confirm packaging compatibility with assembly equipment and processes.