RUT2012FR510CS Equivalent & Substitute Parts

Part Overview

The RUT2012FR510CS is a 510 mOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics. This 0805 (2012 Metric) package component is rated for 0.25W (1/4W) power dissipation and is designed for current sense applications with moisture-resistant characteristics. The part maintains Active product status with 1032 units currently in stock. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and application-specific requirements where alternative manufacturers or feature sets may be beneficial.

Substiute Parts

RUT2012FR510CS

Samsung Electro-MechanicsIn Stock: 1074RUT2012FR510CS Datasheet

Current PartRFQ

ERJ-U6QFR51V

Panasonic Electronic ComponentsIn Stock: 6607ERJ-U6QFR51V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RUT2012FR510CS is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 510 mOhms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Temperature coefficient: ±150ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters:

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

Compliance Parameters:

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Unaffected status

The ERJ-U6QFR51V from Panasonic Electronic Components meets all electrical and mechanical equivalence criteria. While the Panasonic part includes additional features (Anti-Sulfur, Automotive AEC-Q200 certification), these represent enhanced capabilities that do not prevent substitution in applications requiring the base specifications of the RUT2012FR510CS.

Parameter Comparison

Engineering Selection Recommendations

RUT2012FR510CS (Samsung Electro-Mechanics): Select this part for applications requiring current sense resistors with moisture-resistant thick film construction. The part is Active status with established supply availability (1032 units in stock). ROHS3 compliance and MSL 1 rating support standard industrial and commercial applications across the full -55°C to 155°C operating range.

ERJ-U6QFR51V (Panasonic Electronic Components): This substitute part provides equivalent electrical and mechanical performance with additional automotive-grade qualification (AEC-Q200) and anti-sulfur protection. The Panasonic part is suitable for applications requiring enhanced environmental resistance or automotive supply chain compliance. Higher inventory availability (6500 units) supports extended procurement windows. The maximum seated height of 0.026" (0.65mm) versus 0.024" (0.61mm) for the Samsung part represents a 0.05mm difference within typical PCB design tolerances for 0805 packages.

Both parts satisfy ROHS3 and REACH compliance requirements. Selection between these parts should be based on supply chain preference, inventory availability, and application-specific environmental or certification requirements.

Frequently Asked Questions (FAQ)

Q: Can ERJ-U6QFR51V replace RUT2012FR510CS in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent across all critical parameters: 510 mOhms ±1% resistance, 0.25W power rating, 0805 package, ±150ppm/°C temperature coefficient, and -55°C to 155°C operating range. Physical dimensions are identical (2.00mm x 1.25mm). The maximum seated height difference of 0.05mm is within standard PCB design tolerances for 0805 components.

Q: What is the significance of AEC-Q200 certification on the Panasonic part?

A: AEC-Q200 is an automotive industry qualification standard. The ERJ-U6QFR51V carries this certification, indicating compliance with automotive reliability and environmental stress testing requirements. This certification is not required for the base RUT2012FR510CS specifications but represents an enhanced capability available in the Panasonic substitute.

Q: Are there differences in moisture sensitivity between these parts?

A: No. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity limitations. Both are suitable for standard storage and handling conditions without baking requirements prior to reflow soldering.

Q: How do the packaging formats compare?

A: Both parts are supplied in Tape & Reel (TR) format, standard for automated assembly processes. Reel specifications and tape pitch are consistent with 0805 package industry standards.

Q: What is the tolerance specification, and how does it affect circuit performance?

A: Both parts are rated ±1% tolerance on the 510 mOhm resistance value. This tolerance specification ensures resistance values between 504.9 mOhms and 515.1 mOhms. For current sense applications, this tolerance level provides consistent voltage drop measurement across the specified operating temperature range of -55°C to 155°C with a temperature coefficient of ±150ppm/°C.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts are ROHS3 Compliant and REACH Unaffected. No regulatory or compliance barriers exist to substitution. Both carry identical ECCN (EAR99) and HTSUS (8533.21.0030) classifications for export and tariff purposes.