RUT2012FR110CS Equivalent & Substitute Parts Reference

Part Overview

The RUT2012FR110CS is a 110 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 with moisture-resistant construction 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 design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or application-specific performance enhancements while maintaining core electrical and mechanical compatibility.

Substiute Parts

RUT2012FR110CS

Samsung Electro-MechanicsIn Stock: 685RUT2012FR110CS Datasheet

Current PartRFQ

ERJ-6DSFR11V

Panasonic Electronic ComponentsIn Stock: 2543ERJ-6DSFR11V Datasheet

SimilarRFQ

ERJ-U6SFR11V

Panasonic Electronic ComponentsIn Stock: 13627ERJ-U6SFR11V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RUT2012FR110CS is determined by strict adherence to the following electrical and mechanical parameters:

Core Substitution Criteria:

• Resistance value: 110 mOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package / Case: 0805 (2012 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Operating Temperature Range: -55°C to 155°C (minimum requirement)
• RoHS Status: ROHS3 Compliant (minimum requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (minimum requirement)

Allowable Variation Parameters:

• Power Rating: Substitute parts may equal or exceed 0.25W
• Temperature Coefficient: Substitute parts must not exceed ±150ppm/°C
• Manufacturer: Different manufacturers permitted
• Features: Additional features (such as Automotive AEC-Q200 or Anti-Sulfur) are allowable enhancements

The identified substitute parts ERJ-6DSFR11V and ERJ-U6SFR11V from Panasonic Electronic Components satisfy all core substitution criteria while offering enhanced feature sets suitable for expanded application environments.

Parameter Comparison

Engineering Selection Recommendations

RUT2012FR110CS (Samsung Electro-Mechanics) Selection is appropriate for standard current sensing applications requiring moisture-resistant thick film construction. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity rating. This configuration is suitable for general industrial and consumer electronics applications.

ERJ-6DSFR11V (Panasonic Electronic Components) This substitute provides enhanced power dissipation capability at 0.5W (1/2W) compared to the 0.25W rating of the main part, while maintaining identical resistance, tolerance, and package specifications. The inclusion of Automotive AEC-Q200 qualification extends applicability to automotive environments. The temperature coefficient specification of 0/+150ppm/°C provides asymmetrical performance characteristics. Selection is appropriate when higher power dissipation margins or automotive-grade reliability are required.

ERJ-U6SFR11V (Panasonic Electronic Components) This substitute maintains identical power rating (0.25W) and temperature coefficient (±150ppm/°C) specifications as the main part while adding Anti-Sulfur and Automotive AEC-Q200 features. The height-seated maximum of 0.026" (0.65mm) represents a minimal increase from the main part's 0.024" (0.61mm). Selection is appropriate for applications requiring automotive-grade qualification or enhanced corrosion resistance in sulfur-containing environments while maintaining the original power rating.

Frequently Asked Questions (FAQ)

Q: Can ERJ-6DSFR11V be used as a direct replacement for RUT2012FR110CS?

A: ERJ-6DSFR11V is electrically compatible as a substitute. The core parameters—110 mOhms resistance, ±1% tolerance, 0805 package, thick film composition, and operating temperature range—are identical. The primary difference is the increased power rating (0.5W versus 0.25W), which represents a performance enhancement. The height-seated maximum increases from 0.024" to 0.028", which may require verification in space-constrained PCB layouts. Automotive AEC-Q200 qualification is an additional feature not present in the main part.

Q: Can ERJ-U6SFR11V be used as a direct replacement for RUT2012FR110CS?

A: ERJ-U6SFR11V is electrically and mechanically compatible as a substitute. All core parameters match: 110 mOhms resistance, ±1% tolerance, 0805 package, thick film composition, ±150ppm/°C temperature coefficient, and -55°C to 155°C operating range. The height-seated maximum increases minimally from 0.024" to 0.026". The addition of Anti-Sulfur treatment and Automotive AEC-Q200 qualification represents enhanced features suitable for demanding environments.

Q: What is the significance of the 0805 (2012 Metric) package specification?

A: The 0805 designation refers to the imperial dimensions (0.080" x 0.050"), while 2012 Metric refers to the metric equivalent (2.00mm x 1.25mm). All three parts use this identical package footprint, ensuring PCB layout compatibility. However, height-seated maximum values vary slightly (0.024" to 0.028"), which may affect clearance in applications with restricted vertical space.

Q: Are there differences in temperature coefficient between the substitute parts?

A: The main part RUT2012FR110CS and ERJ-U6SFR11V both specify ±150ppm/°C. The ERJ-6DSFR11V specifies 0/+150ppm/°C, which represents an asymmetrical temperature coefficient with zero lower bound and +150ppm/°C upper bound. This difference may affect precision applications requiring predictable temperature stability across the full operating range.

Q: Do all three parts meet the same compliance standards?

A: All three parts are ROHS3 compliant, maintain Moisture Sensitivity Level 1 (Unlimited), and are classified as REACH Unaffected with ECCN EAR99. The substitute parts from Panasonic add Automotive AEC-Q200 qualification, which is not present in the Samsung main part but represents an additional compliance credential rather than a restriction.

Q: What inventory considerations apply to these substitute parts?

A: The main part RUT2012FR110CS has 648 pieces in stock. ERJ-6DSFR11V has 2515 pieces available, and ERJ-U6SFR11V has 13605 pieces available. Higher inventory levels for substitute parts may provide supply chain advantages in high-volume procurement scenarios.