L1007C101KPWIT Equivalent & Substitute Parts

Part Overview

The L1007C101KPWIT is a 100 µH unshielded drum core wirewound inductor manufactured by KEMET in the 1007 (2518 Metric) surface mount package. This component is designed for applications requiring moderate current handling with controlled DC resistance characteristics. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and design requirements.

Substiute Parts

L1007C101KPWIT

KEMETIn Stock: 1069L1007C101KPWIT Datasheet

Current PartRFQ

CBC2518T101K

Taiyo YudenIn Stock: 3150CBC2518T101K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L1007C101KPWIT is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 100 µH
• Inductance tolerance: ±10%
• 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

Allowable Variation Parameters:

• Current rating: Substitute must equal or exceed 125 mA
• DC resistance: Substitute must not exceed specified maximum for the inductance value
• Product status: Substitute may be active or not for new designs

The CBC2518T101K from Taiyo Yuden meets all mandatory matching parameters and provides enhanced current rating capability (170 mA versus 125 mA), making it a direct functional substitute.

Parameter Comparison

Engineering Selection Recommendations

The CBC2518T101K from Taiyo Yuden is a direct functional equivalent to the L1007C101KPWIT. Both components share identical inductance specifications, package dimensions, and core characteristics. The Taiyo Yuden substitute provides superior current handling capability at 170 mA compared to the KEMET original at 125 mA, with saturation current specified at 160 mA.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with standard manufacturing and storage protocols. The DC resistance of the substitute (4.81 Ohm maximum) is slightly elevated relative to the original (3.7 Ohm), which must be evaluated within the context of specific circuit requirements where resistive losses impact performance.

The CBC2518T101K is available in significantly higher inventory (3100 pieces) compared to the KEMET original (982 pieces), supporting production continuity. While the Taiyo Yuden part carries a "Not For New Designs" status, it remains functionally suitable for applications currently utilizing the obsolete KEMET component.

Frequently Asked Questions (FAQ)

Q: Can the CBC2518T101K replace the L1007C101KPWIT in existing designs?

A: Yes. Both components share identical inductance values (100 µH), tolerance specifications (±10%), package dimensions (1007/2518 Metric), and operating temperature ranges (-40°C to 105°C). Physical and electrical compatibility is confirmed across all critical parameters.

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

A: The CBC2518T101K is rated for 170 mA continuous current versus 125 mA for the original. This provides additional design margin and allows the substitute to operate safely in applications approaching the original current limit. The saturation current specification (160 mA) for the substitute indicates the threshold at which inductance begins to degrade.

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

A: The CBC2518T101K exhibits a maximum DC resistance of 4.81 Ohm compared to 3.7 Ohm for the L1007C101KPWIT. This 1.11 Ohm increase results in proportionally higher resistive losses. Circuit designs sensitive to inductor losses must evaluate this parameter against application requirements.

Q: Are both parts suitable for new production?

A: The L1007C101KPWIT is classified as obsolete and the CBC2518T101K is marked "Not For New Designs." For new designs, consultation with component suppliers is necessary to identify actively manufactured alternatives meeting the same electrical and mechanical specifications.

Q: What packaging formats are available for the substitute?

A: The CBC2518T101K is supplied in Tape & Reel (TR) packaging, standard for surface mount production environments. The original KEMET part packaging format is not specified in available data.

Q: Do both parts meet environmental compliance requirements?

A: Yes. Both the L1007C101KPWIT and CBC2518T101K are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic component manufacturing and distribution.