RUT2012FR100CS Equivalent & Substitute Parts Reference

Part Overview

The RUT2012FR100CS is a 100 mOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated for 0.25W (1/4W) power dissipation in 0805 (2012 Metric) package format. This component is designed for current sense applications requiring moisture resistance and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified when alternative manufacturers provide components with matching or superior electrical specifications, identical mechanical packaging, and compatible operational characteristics. Substitute identification enables procurement flexibility, supply chain continuity, and design optimization based on availability and application-specific requirements.

Substiute Parts

RUT2012FR100CS

Samsung Electro-MechanicsIn Stock: 912RUT2012FR100CS Datasheet

Current PartRFQ

ERJ-6DSFR10V

Panasonic Electronic ComponentsIn Stock: 64553ERJ-6DSFR10V Datasheet

SimilarRFQ

ERJ-U6SFR10V

Panasonic Electronic ComponentsIn Stock: 25188ERJ-U6SFR10V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RUT2012FR100CS is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 100 mOhms
• Tolerance: ±1%
• Package format: 0805 (2012 Metric)
• Composition: Thick Film
• Operating temperature range: -55°C to 155°C minimum
• Termination count: 2
• RoHS compliance: ROHS3 or equivalent

Allowable Variation Parameters:

• Power rating: Equal to or greater than 0.25W
• Temperature coefficient: Within ±150ppm/°C or better
• MSL rating: Equal to or superior (MSL 1 is highest)
• Packaging format: Tape & Reel (TR) or Cut Tape (CT) formats are interchangeable for component selection

Application-Specific Features:

• Current sense capability is required
• Moisture resistance or equivalent environmental protection is required

The identified substitute parts meet all mandatory parameters and maintain compatibility with the original design specifications.

Parameter Comparison

Engineering Selection Recommendations

ERJ-U6SFR10V (Panasonic Electronic Components)

The ERJ-U6SFR10V provides direct electrical and mechanical equivalence to the RUT2012FR100CS. Both components share identical resistance (100 mOhms), tolerance (±1%), power rating (0.25W), package format (0805), and operating temperature range (-55°C to 155°C). The ERJ-U6SFR10V incorporates anti-sulfur protection and AEC-Q200 automotive qualification, maintaining ROHS3 compliance and MSL 1 rating. Height variation (0.026" vs. 0.024") remains within standard PCB assembly tolerances. This substitute is suitable for direct replacement in current sense applications.

ERJ-6DSFR10V (Panasonic Electronic Components)

The ERJ-6DSFR10V offers electrical compatibility with enhanced power rating (0.5W vs. 0.25W). All other parameters—resistance, tolerance, package, temperature range, and current sense capability—align with the RUT2012FR100CS specifications. The increased power rating provides design margin for thermal management. AEC-Q200 automotive qualification and ROHS3 compliance are maintained. Height variation (0.028" vs. 0.024") remains within standard assembly tolerances. This substitute is applicable where increased power dissipation capacity is acceptable or beneficial.

Both substitute parts maintain Active product status and demonstrate equivalent or superior environmental compliance ratings.

Frequently Asked Questions (FAQ)

Q: Can ERJ-U6SFR10V replace RUT2012FR100CS in all applications?

A: Yes. The ERJ-U6SFR10V matches all critical electrical parameters (100 mOhms, ±1%, 0.25W, -55°C to 155°C) and mechanical specifications (0805 package, 2 terminations). The anti-sulfur feature and AEC-Q200 qualification provide additional environmental protection. Height difference (0.026" vs. 0.024") is within standard PCB assembly tolerances.

Q: What is the advantage of using ERJ-6DSFR10V?

A: The ERJ-6DSFR10V provides identical electrical performance with doubled power rating (0.5W vs. 0.25W). This higher power capacity allows for greater current handling or thermal margin in current sense circuits. All other specifications remain compatible with the original design.

Q: Are there packaging format differences between these parts?

A: The RUT2012FR100CS is supplied in Tape & Reel (TR) format. The ERJ-U6SFR10V is also supplied in Tape & Reel (TR) format. The ERJ-6DSFR10V is supplied in Cut Tape (CT) & Digi-Reel® format. Both packaging formats are standard for automated assembly processes and do not affect component performance or compatibility.

Q: Do all three parts meet RoHS and REACH requirements?

A: Yes. The RUT2012FR100CS, ERJ-6DSFR10V, and ERJ-U6SFR10V are all ROHS3 compliant and REACH unaffected. All three parts carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the significance of AEC-Q200 qualification on the Panasonic parts?

A: AEC-Q200 is an automotive industry qualification standard. The Panasonic substitutes (ERJ-6DSFR10V and ERJ-U6SFR10V) carry this qualification, indicating compliance with automotive reliability and performance standards. This qualification does not restrict use in non-automotive applications.

Q: Are there height clearance concerns when substituting these parts?

A: The RUT2012FR100CS has a maximum seated height of 0.024" (0.60mm). The ERJ-U6SFR10V measures 0.026" (0.65mm), and the ERJ-6DSFR10V measures 0.028" (0.70mm). These variations are within standard PCB assembly tolerances and do not typically create clearance issues in standard designs. Verify clearance requirements for applications with height-critical constraints.

Q: Can these parts be used interchangeably in current sense circuits?

A: Yes. All three parts are specified for current sense applications. The 100 mOhms resistance value and ±1% tolerance are maintained across all variants, ensuring consistent current measurement accuracy in sense circuits.