L1007C470MPWST Equivalent & Substitute Parts

Part Overview

The L1007C470MPWST 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 85 mA and a DC resistance of 950 mOhm. The part operates across a temperature range of -40°C to 105°C and is RoHS3 compliant with unlimited moisture sensitivity rating.

The L1007C470MPWST is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for legacy systems or redesign initiatives.

Substiute Parts

L1007C470MPWST

KEMETIn Stock: 779L1007C470MPWST Datasheet

Current PartRFQ

CBC2518T470M

Taiyo YudenIn Stock: 3500CBC2518T470M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L1007C470MPWST is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 47 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: 12 MHz

Allowable Variation Parameters:

• Current rating: Substitute parts must meet or exceed the 85 mA requirement
• DC resistance: Substitute parts may vary within acceptable circuit performance limits
• Product status: Substitute parts may have different lifecycle classifications
• Packaging format: Tape & Reel (TR) is compatible with the original packaging specification

The CBC2518T470M from Taiyo Yuden satisfies all mandatory matching parameters and provides enhanced current handling capability (290 mA) compared to the original part, making it a direct functional substitute within the same package footprint and electrical specification class.

Parameter Comparison

Engineering Selection Recommendations

The CBC2518T470M from Taiyo Yuden is a direct functional substitute for the L1007C470MPWST. Both parts are classified with restricted product status: the original is obsolete, and the substitute is marked as not for new designs. Both components maintain identical RoHS3 compliance and unlimited moisture sensitivity ratings, ensuring regulatory alignment.

The substitute part provides superior current handling capability at 290 mA compared to the original 85 mA rating, offering increased design margin for current-limited applications. The higher DC resistance of the substitute (2.47 Ohm Max versus 950 mOhm) must be evaluated within the specific circuit context to ensure acceptable power dissipation and voltage drop characteristics.

Both parts share identical package dimensions (1007 / 2518 Metric), core material (ferrite), shielding configuration (unshielded), and operating temperature range (-40°C to 105°C), enabling direct mechanical and thermal compatibility in surface mount applications.

Frequently Asked Questions (FAQ)

Q: Can the CBC2518T470M replace the L1007C470MPWST in existing designs?

A: Yes. Both parts share identical inductance (47 µH), tolerance (±20%), package footprint (1007 / 2518 Metric), core type (ferrite drum core), shielding (unshielded), and operating temperature range (-40°C to 105°C). The substitute provides higher current rating (290 mA versus 85 mA) and increased DC resistance (2.47 Ohm Max versus 950 mOhm), which must be evaluated for circuit-specific performance requirements.

Q: What is the significance of the different DC resistance values?

A: The CBC2518T470M exhibits higher DC resistance (2.47 Ohm Max) compared to the L1007C470MPWST (950 mOhm). This difference affects power dissipation and voltage drop across the inductor. Circuit designers must verify that the substitute's resistance characteristics remain within acceptable limits for the intended application.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the L1007C470MPWST and CBC2518T470M are RoHS3 compliant with unlimited moisture sensitivity level (MSL 1), ensuring regulatory compliance for restricted substance directives and environmental standards.

Q: What is the difference in product status between these parts?

A: The L1007C470MPWST is classified as obsolete, indicating it is no longer manufactured. The CBC2518T470M is marked as not for new designs, indicating limited availability and restricted use in new product development. Both statuses reflect supply chain constraints and should be considered in long-term design planning.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 1007 (2518 Metric) surface mount package with identical dimensions: 0.098" L x 0.071" W (2.50mm x 1.80mm) and maximum seated height of 0.079" (2.00mm). Direct mechanical substitution is supported without PCB layout modifications.

Q: What is the self-resonant frequency specification?

A: Both parts have a self-resonant frequency of 12 MHz, indicating identical high-frequency behavior and suitability for applications operating below this frequency threshold.