L1007C151KDWIT Equivalent & Substitute Parts

Part Overview

The L1007C151KDWIT is a 150 µH unshielded drum core wirewound inductor manufactured by KEMET in the 1007 (2518 Metric) surface mount package. This component is rated for 130 mA continuous current with a saturation current of 140 mA and operates across the temperature range of -40°C to 105°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

L1007C151KDWIT

KEMETIn Stock: 1118L1007C151KDWIT Datasheet

Current PartRFQ

CBC2518T151K

Taiyo YudenIn Stock: 9978CBC2518T151K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L1007C151KDWIT is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value: 150 µH with ±10% tolerance
• Current rating: 130 mA minimum
• Saturation current: 140 mA minimum
• Package designation: 1007 (2518 Metric) surface mount
• Physical dimensions: 0.098" L × 0.071" W × 0.079" H maximum
• Core material: Ferrite, unshielded drum core configuration
• Operating temperature range: -40°C to 105°C
• Self resonant frequency: 7 MHz
• Inductance test frequency: 796 kHz

The CBC2518T151K from Taiyo Yuden meets all critical electrical and mechanical parameters and is therefore classified as a direct functional equivalent. DC resistance variance (7.93 Ohm maximum versus 6.1 Ohm) falls within acceptable design tolerance for this component category and does not preclude substitution in standard applications.

Parameter Comparison

Engineering Selection Recommendations

The CBC2518T151K (Taiyo Yuden) is the qualified equivalent substitute for the obsolete L1007C151KDWIT (KEMET). Both components satisfy identical electrical specifications, mechanical package requirements, and regulatory compliance standards.

Selection Basis:

The L1007C151KDWIT is designated as obsolete, creating supply chain risk for new production and ongoing support. The CBC2518T151K provides functional continuity with equivalent performance across all critical parameters: inductance value, current ratings, saturation characteristics, temperature operating range, and package footprint.

Both parts maintain ROHS3 compliance and EAR99 export classification, ensuring regulatory alignment. The MSL 1 rating for both components indicates unlimited shelf life under standard storage conditions, eliminating moisture-related handling constraints.

The CBC2518T151K carries a "Not For New Designs" status from Taiyo Yuden, indicating this substitute is suitable for replacement and legacy support applications but may not represent the optimal long-term solution for new product development. For new designs, consultation of current manufacturer catalogs for active-status alternatives is appropriate.

Frequently Asked Questions (FAQ)

Q: Can the CBC2518T151K directly replace the L1007C151KDWIT in existing designs?

A: Yes. The CBC2518T151K meets all electrical and mechanical specifications of the L1007C151KDWIT. Both components share identical inductance values, current ratings, saturation characteristics, package dimensions, and operating temperature ranges. The components are pin-compatible and footprint-compatible for surface mount assembly.

Q: What is the significance of the DC resistance difference (6.1 Ohm versus 7.93 Ohm)?

A: The DC resistance variance of 1.83 Ohm represents a 30% increase from the KEMET specification. This difference falls within acceptable tolerance for inductor substitution in standard filtering and energy storage applications. Circuit designs with tight power dissipation budgets or high-current pulse requirements should evaluate the impact of increased resistive losses. For most general-purpose applications, this variance does not preclude substitution.

Q: Are both parts suitable for high-frequency applications?

A: Both components are rated for operation at 7 MHz self resonant frequency with inductance measured at 796 kHz test frequency. These specifications define the upper frequency boundary for reliable operation. Applications requiring operation above 7 MHz require alternative component selection.

Q: What are the packaging and supply differences between these parts?

A: The L1007C151KDWIT is supplied in standard packaging configuration with 1051 pieces currently in stock. The CBC2518T151K is supplied in Tape & Reel (TR) format with 9896 pieces in stock. Tape & Reel packaging is standard for automated assembly processes and does not affect component electrical or mechanical performance.

Q: Do both parts meet current environmental and export regulations?

A: Yes. Both the L1007C151KDWIT and CBC2518T151K are ROHS3 compliant and classified under ECCN EAR99, indicating unrestricted export status. Both components are REACH unaffected. Regulatory compliance is equivalent across both parts.

Q: What is the moisture sensitivity level, and does it affect handling?

A: Both components carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints. These parts do not require special desiccant packaging, controlled humidity storage, or time-limited shelf life management. Standard industrial storage conditions are appropriate.