L1007C470MPWIT Equivalent & Substitute Parts

Part Overview

The L1007C470MPWIT is a 47 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 inductance values with a current rating of 150 mA and a DC resistance of 1.9 Ohm. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications.

Substiute Parts

L1007C470MPWIT

KEMETIn Stock: 864L1007C470MPWIT Datasheet

Current PartRFQ

CBC2518T470M

Taiyo YudenIn Stock: 3500CBC2518T470M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L1007C470MPWIT is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 47 µH with ±20% tolerance
• Package / Case: 1007 (2518 Metric) surface mount
• Core material and type: Ferrite drum core, unshielded
• Operating temperature range: -40°C ~ 105°C
• Self resonant frequency: 12 MHz
• Inductance test frequency: 2.52 MHz

Allowable Variation Parameters:

• Current rating: Substitute must equal or exceed 150 mA
• DC resistance: Substitute specifications within component design tolerances
• Saturation current: Substitute specifications within component design tolerances

The CBC2518T470M from Taiyo Yuden meets all mandatory matching parameters and provides enhanced current handling capability (290 mA versus 150 mA), making it a direct functional substitute.

Parameter Comparison

Engineering Selection Recommendations

The CBC2518T470M from Taiyo Yuden is a direct functional equivalent to the L1007C470MPWIT. Both components share identical inductance values, package dimensions, core construction, and operating temperature specifications. The substitute part provides superior current handling capability at 290 mA compared to the original 150 mA rating, with no reduction in performance across any specified parameter.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current production environments. The CBC2518T470M is classified as "Not For New Designs," indicating limited future availability; however, it remains suitable for replacement and maintenance applications where the L1007C470MPWIT is no longer obtainable.

The increase in DC resistance from 1.9 Ohm to 2.47 Ohm maximum is within acceptable design tolerances for inductor substitution and does not preclude functional equivalence in standard circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the CBC2518T470M be used as a direct replacement for the L1007C470MPWIT?

A: Yes. Both components share identical inductance values (47 µH), package dimensions (1007 / 2518 Metric), core construction (ferrite drum core, unshielded), and operating temperature ranges (-40°C ~ 105°C). The CBC2518T470M provides enhanced current handling capability without compromising any specified electrical parameter.

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

A: The CBC2518T470M is rated for 290 mA continuous current compared to 150 mA on the original part. This higher rating provides additional design margin and allows the substitute to operate safely in applications where the original part was at or near its current limit. Applications requiring only 150 mA or less will operate within the safe operating region of the substitute part.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the L1007C470MPWIT and CBC2518T470M are ROHS3 compliant and REACH unaffected. Both maintain Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

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

A: The CBC2518T470M specifies a maximum DC resistance of 2.47 Ohm compared to 1.9 Ohm on the original part. This 0.57 Ohm increase represents approximately 30% higher resistance. In applications where inductor losses are critical, this difference must be evaluated against circuit power dissipation requirements. For most standard filtering and energy storage applications, this resistance increase remains within acceptable design tolerances.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both components are packaged in the 1007 (2518 Metric) case with identical length (0.098" / 2.50mm), width (0.071" / 1.80mm), and maximum seated height (0.079" / 2.00mm). PCB layout and assembly processes require no modification when substituting between these parts.

Q: What is the difference between "Obsolete" and "Not For New Designs" product status?

A: The L1007C470MPWIT is classified as obsolete, indicating the manufacturer has discontinued production and no inventory is available from primary sources. The CBC2518T470M is classified as "Not For New Designs," indicating the manufacturer continues limited production but does not recommend this part for new circuit designs. For replacement and maintenance applications, the CBC2518T470M remains available and suitable for use.