RUT2012JR750CS Equivalent & Substitute Parts

Part Overview

The RUT2012JR750CS is a 750 mOhms ±5% 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 and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support applications requiring alternative tolerance specifications or enhanced automotive qualification ratings.

Substiute Parts

RUT2012JR750CS

Samsung Electro-MechanicsIn Stock: 813RUT2012JR750CS Datasheet

Current PartRFQ

ERJ-U6QFR75V

Panasonic Electronic ComponentsIn Stock: 24168ERJ-U6QFR75V Datasheet

SimilarRFQ

ERJ-U6QJR75V

Panasonic Electronic ComponentsIn Stock: 24277ERJ-U6QJR75V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RUT2012JR750CS are qualified based on the following electrical and mechanical parameters:

Core Substitution Criteria:

• Identical resistance value: 750 mOhms
• Identical power rating: 0.25W (1/4W)
• Identical package: 0805 (2012 Metric)
• Identical composition: Thick Film
• Identical temperature coefficient: ±150ppm/°C
• Identical operating temperature range: -55°C ~ 155°C
• Identical number of terminations: 2
• Identical RoHS3 compliance and MSL 1 rating

Tolerance Variations: Substitute parts are grouped by tolerance specification. The RUT2012JR750CS operates at ±5% tolerance. Substitute parts with tighter tolerance specifications (±1%) provide enhanced precision for applications requiring improved accuracy, while maintaining all other electrical and mechanical characteristics.

Automotive Qualification: Panasonic ERJ-U6Q series substitutes include AEC-Q200 automotive qualification and anti-sulfur features, providing enhanced reliability for automotive and harsh environment applications while maintaining electrical equivalence.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Tolerance-Matched): The ERJ-U6QJR75V from Panasonic Electronic Components serves as a direct functional equivalent to the RUT2012JR750CS. Both parts maintain ±5% tolerance specification, identical electrical ratings, and equivalent mechanical dimensions. The ERJ-U6QJR75V adds AEC-Q200 automotive qualification and anti-sulfur construction, providing enhanced reliability without compromising compatibility. This part is suitable for applications requiring a drop-in replacement with additional automotive-grade assurance.

Enhanced Precision Alternative: The ERJ-U6QFR75V provides tighter tolerance specification at ±1%, compared to the ±5% of the primary part. This substitute is applicable in designs where improved resistance accuracy is required while maintaining all other electrical and mechanical parameters. The ERJ-U6QFR75V also includes AEC-Q200 qualification and anti-sulfur features.

Compliance and Certification: All substitute parts maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity rating, and identical operating temperature ranges. Both Panasonic alternatives carry AEC-Q200 automotive qualification, which does not restrict their use in non-automotive applications and provides additional reliability assurance across all application categories.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-U6QJR75V replace the RUT2012JR750CS in existing designs? A: Yes. The ERJ-U6QJR75V is electrically and mechanically equivalent, with identical resistance, tolerance, power rating, package dimensions, and operating temperature range. The addition of AEC-Q200 qualification and anti-sulfur construction provides enhanced reliability without affecting compatibility.

Q: What is the difference between the ERJ-U6QJR75V and ERJ-U6QFR75V? A: Both parts are mechanically and electrically identical except for tolerance specification. The ERJ-U6QJR75V operates at ±5% tolerance, matching the primary part. The ERJ-U6QFR75V provides ±1% tolerance for applications requiring improved resistance accuracy. Both include AEC-Q200 qualification and anti-sulfur features.

Q: Are the physical dimensions identical across all three parts? A: The package designation (0805 / 2012 Metric) is identical for all parts. The RUT2012JR750CS has a maximum seated height of 0.024" (0.61mm), while the Panasonic ERJ-U6Q series parts have a maximum seated height of 0.026" (0.65mm). Both dimensions are within standard 0805 package specifications and are compatible with standard PCB assembly processes.

Q: Does AEC-Q200 qualification restrict use to automotive applications? A: No. AEC-Q200 is an automotive qualification standard that indicates enhanced reliability testing and quality assurance. Parts with AEC-Q200 qualification are suitable for use in any application, including non-automotive designs, and provide additional assurance of component reliability.

Q: Are all substitute parts RoHS3 compliant? A: Yes. The RUT2012JR750CS and both Panasonic substitute parts (ERJ-U6QJR75V and ERJ-U6QFR75V) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the temperature coefficient specification, and is it identical across all parts? A: The temperature coefficient is ±150ppm/°C for all three parts. This specification defines the resistance change per degree Celsius across the operating temperature range of -55°C to 155°C and is identical across the primary part and all substitutes.

Q: Can I use the ±1% tolerance part (ERJ-U6QFR75V) in place of the ±5% part (RUT2012JR750CS)? A: Yes. The ±1% tolerance part is a direct substitute with improved accuracy. Tighter tolerance specifications are backward-compatible with designs specified for looser tolerances, as the component will remain within the original tolerance band while providing enhanced precision.