L0805C470MPWST Equivalent & Substitute Parts Reference

Part Overview

The L0805C470MPWST is a 47 µH unshielded drum core wirewound inductor manufactured by KEMET in the 0805 (2012 Metric) surface mount package. This component is rated for 50 mA maximum current with 3.7 Ohm DC resistance 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 production and maintenance applications. Substitute components must maintain the same inductance value, package footprint, and core material while accommodating variations in current rating and DC resistance within acceptable design parameters.

Substiute Parts

L0805C470MPWST

KEMETIn Stock: 1480L0805C470MPWST Datasheet

Current PartRFQ

CBC2012T470M

Taiyo YudenIn Stock: 17203CBC2012T470M Datasheet

SimilarRFQ

LB2012T470M

Taiyo YudenIn Stock: 209311LB2012T470M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L0805C470MPWST is determined by strict adherence to the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 47 µH
• Inductance tolerance: ±20%
• Package / Case: 0805 (2012 Metric)
• Core material: Ferrite
• Shielding configuration: Unshielded
• Mounting type: Surface Mount
• Self-resonant frequency: 11 MHz
• Inductance test frequency: 2.52 MHz

Allowable Variation Parameters:

• Current rating: May exceed 50 mA (higher current capability is acceptable)
• DC resistance: May vary from 3.7 Ohm (within component tolerance specifications)
• Operating temperature range: Minimum -40°C to 105°C (wider ranges acceptable)
• Product status: Substitutes may have different lifecycle status
• Packaging format: Cut Tape (CT) or Tape & Reel (TR) formats are interchangeable

The two identified substitute parts, CBC2012T470M and LB2012T470M, both manufactured by Taiyo Yuden, satisfy all mandatory matching parameters while offering enhanced current ratings and alternative packaging options.

Parameter Comparison

Engineering Selection Recommendations

CBC2012T470M Selection Criteria: The CBC2012T470M offers a current rating of 150 mA, providing 3× the current capacity of the original L0805C470MPWST. This part is suitable for applications where the circuit current demand may exceed 50 mA. The increased DC resistance of 7.54 Ohm maximum must be evaluated against circuit power dissipation requirements. This part is available in Tape & Reel (TR) packaging format. Product status is "Not For New Designs," indicating limited long-term availability.

LB2012T470M Selection Criteria: The LB2012T470M maintains the identical 3.7 Ohm DC resistance of the original part while providing a 60 mA current rating, representing a 20% increase in current capacity. This part offers the closest electrical performance match to the L0805C470MPWST. Available in Cut Tape (CT) and Digi-Reel® packaging formats, the LB2012T470M provides superior inventory availability (209,300 pieces in stock). Operating temperature range is -25°C to 105°C, which is acceptable for most applications requiring the original -40°C to 105°C range, provided minimum temperature operation below -25°C is not required. Product status is "Not For New Designs."

Both substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical inductance specifications. Selection between CBC2012T470M and LB2012T470M depends on circuit current requirements and thermal design considerations related to DC resistance variation.

Frequently Asked Questions (FAQ)

Q: Can the CBC2012T470M be used as a direct replacement for the L0805C470MPWST?

A: The CBC2012T470M is electrically compatible from an inductance and package perspective. However, the increased DC resistance (7.54 Ohm maximum versus 3.7 Ohm) will result in higher power dissipation. Circuit analysis must confirm that the increased resistive losses do not exceed thermal design limits. The higher current rating (150 mA) is not a limitation for applications requiring only 50 mA.

Q: What is the difference between the two substitute parts?

A: The primary differences are current rating and DC resistance. The CBC2012T470M provides 150 mA capacity with 7.54 Ohm DCR, while the LB2012T470M provides 60 mA capacity with 3.7 Ohm DCR. The LB2012T470M more closely matches the original part's electrical characteristics. The CBC2012T470M is suitable only if higher current capacity is required.

Q: Are there packaging compatibility issues between Cut Tape and Tape & Reel formats?

A: No. Both Cut Tape (CT) and Tape & Reel (TR) packaging formats contain identical components in the same 0805 (2012 Metric) package. Packaging format selection depends on assembly process requirements and inventory management practices. Both formats are compatible with standard surface mount assembly equipment.

Q: Does the operating temperature range difference affect substitution?

A: The LB2012T470M operates from -25°C to 105°C, compared to the original -40°C to 105°C. This substitution is valid only if the application does not require operation below -25°C. If minimum temperature operation below -25°C is required, the CBC2012T470M (-40°C to 105°C) must be selected.

Q: What does "Not For New Designs" product status mean?

A: This status indicates that the manufacturer is not recommending these parts for new product development and may discontinue production. Both substitute parts carry this status. For applications requiring long-term component availability, alternative sources or design modifications may be necessary.

Q: Are all three parts RoHS3 compliant?

A: Yes. The L0805C470MPWST, CBC2012T470M, and LB2012T470M are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage processes.