L1007C100MPWIT Equivalent & Substitute Parts

Part Overview

The L1007C100MPWIT is a 10 µH unshielded drum core wirewound inductor manufactured by KEMET in the 1007 (2518 Metric) surface mount package. This component is rated for 300 mA continuous current with a DC resistance of 360 mOhm 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 requirements.

Key Parameters

Parameter	Value
Inductance	10 µH
Tolerance	±20%
Current Rating	300 mA
DC Resistance (DCR)	360 mOhm
Core Type	Ferrite, Drum Core, Wirewound
Shielding	Unshielded
Package / Case	1007 (2518 Metric)
Mounting Type	Surface Mount
Operating Temperature	-40°C to 105°C
Self Resonant Frequency	30 MHz
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the L1007C100MPWIT is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

Inductance value: 10 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: 30 MHz

Allowable Variation Parameters:

Current rating: Substitute must equal or exceed 300 mA
DC resistance: Substitute specifications must be documented and compatible with circuit requirements
Product status: Substitutes may have different lifecycle status

The CBC2518T100M from Taiyo Yuden meets all mandatory matching parameters and exceeds the current rating requirement at 680 mA, making it a valid electrical and mechanical substitute.

Parameter Comparison

Parameter	L1007C100MPWIT (KEMET)	CBC2518T100M (Taiyo Yuden)
Inductance	10 µH	10 µH
Tolerance	±20%	±20%
Current Rating (Amps)	300 mA	680 mA
Current - Saturation (Isat)	Not specified	480 mA
DC Resistance (DCR)	360 mOhm	468 mOhm Max
Core Type	Ferrite, Drum Core, Wirewound	Ferrite, Drum Core, Wirewound
Shielding	Unshielded	Unshielded
Package / Case	1007 (2518 Metric)	1007 (2518 Metric)
Size / Dimension	0.098" L x 0.071" W (2.50mm x 1.80mm)	0.098" L x 0.071" W (2.50mm x 1.80mm)
Height - Seated (Max)	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Surface Mount	Surface Mount
Operating Temperature	-40°C to 105°C	-40°C to 105°C
Self Resonant Frequency	30 MHz	30 MHz
Inductance Frequency - Test	2.52 MHz	2.52 MHz
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Obsolete	Not For New Designs

Engineering Selection Recommendations

The CBC2518T100M from Taiyo Yuden is electrically and mechanically compatible with the L1007C100MPWIT. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The substitute part provides superior current handling capability at 680 mA compared to the original 300 mA rating, with saturation current specified at 480 mA. The DC resistance of the substitute is slightly elevated at 468 mOhm maximum compared to the original 360 mOhm specification.

Both parts share identical package dimensions, mounting type, operating temperature range, and self-resonant frequency characteristics. The inductance value, tolerance, and core material specifications are identical. Selection between these parts should account for the DC resistance differential and the increased current capacity of the substitute, which may affect thermal performance and power dissipation in the application circuit.

Frequently Asked Questions (FAQ)

Q: Can the CBC2518T100M directly replace the L1007C100MPWIT in existing designs?

A: Yes. Both components share identical inductance values, tolerances, package dimensions, mounting types, and operating temperature ranges. The substitute provides higher current rating and specified saturation current characteristics.

Q: What is the significance of the higher current rating in the substitute part?

A: The CBC2518T100M is rated for 680 mA continuous current compared to 300 mA for the original part. This provides additional design margin in applications where current levels approach the original specification. The saturation current of 480 mA in the substitute must be considered in circuit analysis.

Q: How does the increased DC resistance of the substitute affect circuit performance?

A: The CBC2518T100M specifies a maximum DC resistance of 468 mOhm compared to 360 mOhm for the L1007C100MPWIT. This 108 mOhm difference results in increased power dissipation and voltage drop across the inductor. Circuit designs sensitive to DCR specifications must account for this variation.

Q: Are both parts suitable for new designs?

A: The L1007C100MPWIT carries an Obsolete status and is not suitable for new designs. The CBC2518T100M carries a Not For New Designs status. For new design work, consultation with component suppliers for current production alternatives in the 10 µH, 1007 package category is necessary.

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both the L1007C100MPWIT and CBC2518T100M are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both components measure 0.098" L x 0.071" W (2.50mm x 1.80mm) with a maximum seated height of 0.079" (2.00mm). They are mechanically interchangeable in the 1007 (2518 Metric) package footprint.

Q: What is the moisture sensitivity level for both parts?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or reflow processes.

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