RUT2012FR200CS Equivalent & Substitute Parts Reference

Part Overview

The RUT2012FR200CS is a 200 mOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated for 0.25W (1/4W) power dissipation in a 0805 (2012 Metric) surface mount package. This component is designed for current sensing 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 component availability is limited, supply chain disruptions occur, or design requirements necessitate alternative sourcing while maintaining electrical and mechanical compatibility within specified tolerances.

Substiute Parts

RUT2012FR200CS

Samsung Electro-MechanicsIn Stock: 1038RUT2012FR200CS Datasheet

Current PartRFQ

ERJ-6DSFR20V

Panasonic Electronic ComponentsIn Stock: 57775ERJ-6DSFR20V Datasheet

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ERJ-U6SFR20V

Panasonic Electronic ComponentsIn Stock: 10416ERJ-U6SFR20V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RUT2012FR200CS is based on strict equivalence of the following critical parameters:

Electrical Parameters (Non-negotiable):

• Resistance value: 200 mOhms
• Tolerance: ±1%
• Composition: Thick Film
• Temperature Coefficient: ±150ppm/°C or equivalent
• Operating Temperature Range: -55°C to 155°C minimum

Mechanical Parameters (Non-negotiable):

• Package / Case: 0805 (2012 Metric)
• Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)
• Number of Terminations: 2

Compliance Parameters (Required):

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Power Rating Consideration: Substitute parts with equal or higher power ratings (0.25W or greater) are acceptable. Higher power ratings provide thermal margin without affecting circuit performance in current sensing applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: ERJ-U6SFR20V (Panasonic)

The ERJ-U6SFR20V is the direct electrical and mechanical equivalent to the RUT2012FR200CS. Both components share identical resistance (200 mOhms), tolerance (±1%), power rating (0.25W), package (0805), and temperature coefficient (±150ppm/°C). The ERJ-U6SFR20V includes automotive AEC-Q200 qualification and anti-sulfur features, providing enhanced reliability for demanding applications. Both parts are supplied in Tape & Reel packaging and maintain ROHS3 compliance with MSL 1 rating. Height difference of 0.002" (0.05mm) is within acceptable PCB assembly tolerances.

Secondary Substitute: ERJ-6DSFR20V (Panasonic)

The ERJ-6DSFR20V maintains electrical equivalence in resistance (200 mOhms), tolerance (±1%), and package (0805) but features a higher power rating of 0.5W (1/2W) compared to the 0.25W rating of the RUT2012FR200CS. This higher power rating provides additional thermal margin in current sensing circuits. The temperature coefficient specification (0/+150ppm/°C) differs slightly from the RUT2012FR200CS (±150ppm/°C) but remains within acceptable limits for most applications. The ERJ-6DSFR20V includes automotive AEC-Q200 qualification. Height is 0.028" (0.70mm), representing a 0.004" (0.10mm) increase from the main part. This component is supplied in Cut Tape and Digi-Reel packaging.

Compliance Verification:

All three components maintain ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and Active product status. All are rated for -55°C to 155°C operating temperature range. Selection between primary and secondary substitutes depends on packaging requirements (Tape & Reel versus Cut Tape) and thermal design margin needs.

Frequently Asked Questions (FAQ)

Q: Can ERJ-U6SFR20V replace RUT2012FR200CS in all applications?

A: Yes. The ERJ-U6SFR20V is electrically and mechanically equivalent. Both components have identical resistance (200 mOhms), tolerance (±1%), power rating (0.25W), package (0805), and temperature coefficient (±150ppm/°C). The height difference of 0.002" (0.05mm) is within standard PCB assembly tolerances. Tape & Reel packaging is compatible with automated assembly processes.

Q: What is the advantage of using ERJ-6DSFR20V over the main part?

A: The ERJ-6DSFR20V provides a higher power rating (0.5W versus 0.25W), offering increased thermal margin in current sensing applications. This higher rating allows the component to dissipate more power without exceeding temperature limits. Electrical parameters (resistance, tolerance, package) remain equivalent. The trade-off is a slightly increased height (0.028" versus 0.024"), which must be verified against PCB design constraints.

Q: Are there packaging differences between substitutes?

A: Yes. The RUT2012FR200CS and ERJ-U6SFR20V are supplied in Tape & Reel (TR) packaging, suitable for high-volume automated assembly. The ERJ-6DSFR20V is supplied in Cut Tape (CT) and Digi-Reel® packaging, which may require different handling in assembly processes. Packaging selection depends on production volume and assembly equipment compatibility.

Q: Do all substitutes meet automotive standards?

A: The RUT2012FR200CS does not specify automotive qualification. Both Panasonic substitutes (ERJ-U6SFR20V and ERJ-6DSFR20V) include automotive AEC-Q200 qualification, making them suitable for automotive applications. If automotive qualification is not required, this difference is not a limiting factor for substitution.

Q: What is the significance of the temperature coefficient difference in ERJ-6DSFR20V?

A: The ERJ-6DSFR20V specifies 0/+150ppm/°C, while the RUT2012FR200CS specifies ±150ppm/°C. The ERJ-6DSFR20V has a positive temperature coefficient only, whereas the main part has a symmetric coefficient. For current sensing applications operating within the -55°C to 155°C range, this difference results in minimal resistance variation and is acceptable for most circuit designs. Verification against specific circuit tolerance requirements is recommended for precision applications.

Q: Can these parts be used interchangeably in PCB assembly?

A: The RUT2012FR200CS and ERJ-U6SFR20V are fully interchangeable without design modifications. The ERJ-6DSFR20V requires verification of height clearance (0.028" maximum seated height) against PCB design constraints, particularly in high-density layouts. All three components use identical 0805 package footprints and two-terminal configurations.

Q: What compliance certifications apply to all substitutes?

A: All three components are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. All maintain Moisture Sensitivity Level 1 (unlimited), requiring no special moisture control during storage or handling. All are rated for -55°C to 155°C operating temperature range.