DFE201208S-R47QS=P2 Equivalent & Substitute Parts

Part Overview

The DFE201208S-R47QS=P2 is a 470 nH shielded drum core, wirewound inductor manufactured by Murata Electronics. This surface mount component is rated for 3 A continuous current with a maximum DC resistance of 42 mOhm and operates across the temperature range of -40°C to 125°C. The part is housed in a 0805 (2012 Metric) package and is ROHS3 compliant.

This part has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this inductor specification.

Substiute Parts

DFE201208S-R47QS=P2

Murata ElectronicsIn Stock: 993DFE201208S-R47QS=P2 Datasheet

Current PartRFQ

DFE21CCNR47MELL

Murata ElectronicsIn Stock: 4132DFE21CCNR47MELL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DFE201208S-R47QS=P2 is determined by strict equivalence across the following critical parameters:

Inductance Value: The substitute part must maintain 470 nH inductance, measured at 1 MHz test frequency.

Package and Form Factor: Both the main part and substitute must use the 0805 (2012 Metric) surface mount package with identical physical dimensions (0.079" L × 0.047" W, 2.00mm × 1.20mm) and maximum seated height of 0.031" (0.80mm).

Core Configuration: The substitute must employ a shielded drum core, wirewound construction with metal core material to maintain electromagnetic isolation and performance characteristics.

Current Handling: The substitute part must support the application's current requirements. The main part is rated for 3 A continuous current with 4 A saturation current.

DC Resistance: The substitute's maximum DC resistance must be compatible with the circuit's power dissipation and voltage drop requirements.

Environmental Compliance: The substitute must maintain ROHS3 compliance and operate within the -40°C to 125°C temperature range.

Moisture Sensitivity: MSL rating of 1 (Unlimited) ensures handling and storage compatibility.

Parameter Comparison

Engineering Selection Recommendations

The DFE21CCNR47MELL is a direct substitute for the obsolete DFE201208S-R47QS=P2 based on the following engineering criteria:

Functional Equivalence: Both parts maintain identical inductance values (470 nH) at the same test frequency (1 MHz) and share the same shielded drum core, wirewound construction with metal core material.

Package Compatibility: The substitute part uses the identical 0805 (2012 Metric) surface mount package with matching physical dimensions and height specifications, ensuring direct PCB footprint compatibility without layout modifications.

Performance Enhancement: The DFE21CCNR47MELL provides improved electrical performance relative to the main part. The substitute offers higher current rating (4.1 A versus 3 A), higher saturation current (4.8 A versus 4 A), and lower DC resistance (29 mOhm maximum versus 42 mOhm maximum). These characteristics provide additional design margin and reduced power dissipation.

Compliance and Reliability: Both parts maintain ROHS3 compliance, operate across the identical temperature range (-40°C to 125°C), and share MSL rating of 1 (Unlimited). The substitute part holds active product status, ensuring long-term availability and supply chain continuity.

Production Availability: The substitute part is available in Tape & Reel (TR) packaging format with 4121 pieces in current inventory, supporting volume production requirements.

Frequently Asked Questions (FAQ)

Q: Can the DFE21CCNR47MELL be used as a direct replacement for the DFE201208S-R47QS=P2 without circuit modifications?

A: Yes. Both parts share identical inductance values (470 nH), package specifications (0805 / 2012 Metric), and core configurations (shielded drum core, wirewound, metal core). The substitute part fits the same PCB footprint and operates within the same temperature range. No circuit modifications are required.

Q: What are the key differences between these two parts?

A: The primary differences are product status and electrical performance. The DFE201208S-R47QS=P2 is obsolete, while the DFE21CCNR47MELL is active. The substitute part provides higher current rating (4.1 A versus 3 A), higher saturation current (4.8 A versus 4 A), and lower DC resistance (29 mOhm maximum versus 42 mOhm maximum). The substitute also includes specified inductance tolerance (±20%).

Q: Are there any packaging format differences between these parts?

A: The main part packaging format is not specified in the available data. The substitute part is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount production. Both parts use the 0805 (2012 Metric) package case.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both parts are ROHS3 compliant, operate across the identical temperature range (-40°C to 125°C), and share MSL rating of 1 (Unlimited). Both parts carry the same ECCN (EAR99) and HTSUS (8504.50.8000) classifications.

Q: Why does the substitute part have lower DC resistance?

A: The DFE21CCNR47MELL has a maximum DC resistance of 29 mOhm compared to 42 mOhm for the main part. This lower resistance reduces power dissipation in the inductor and improves overall circuit efficiency. This represents an improvement in the substitute part's design.

Q: Is the substitute part suitable for applications requiring the full 3 A current rating of the original part?

A: Yes. The substitute part is rated for 4.1 A continuous current, which exceeds the 3 A requirement of the original part. The substitute provides additional current handling capacity and design margin.

Q: What is the inductance tolerance of the substitute part?

A: The DFE21CCNR47MELL has an inductance tolerance of ±20%, measured at 1 MHz test frequency. The tolerance specification for the original part is not provided in the available data.