RUT2012JR910CS Equivalent & Substitute Parts

Part Overview

The RUT2012JR910CS is a 910 mOhms ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated for 0.25W (1/4W) power dissipation in the 0805 (2012 Metric) package. This component is designed for current sense applications with moisture-resistant characteristics 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 rating.

Equivalent and substitute parts are identified when design requirements permit tolerance relaxation, enhanced automotive qualification, or alternative sourcing for supply chain optimization while maintaining electrical and mechanical compatibility.

Substiute Parts

RUT2012JR910CS

Samsung Electro-MechanicsIn Stock: 832RUT2012JR910CS Datasheet

Current PartRFQ

ERJ-U6QFR91V

Panasonic Electronic ComponentsIn Stock: 1499ERJ-U6QFR91V Datasheet

SimilarRFQ

ERJ-U6QJR91V

Panasonic Electronic ComponentsIn Stock: 3195ERJ-U6QJR91V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RUT2012JR910CS is determined by strict adherence to the following parameters:

Mandatory Match Requirements:

• Resistance value: 910 mOhms (exact)
• Package designation: 0805 (2012 Metric) (exact)
• Power rating: 0.25W minimum
• Composition: Thick film
• Temperature range: -55°C to 155°C minimum
• RoHS3 compliance
• MSL rating: 1 or better

Permissible Variations:

• Tolerance may be tightened from ±5% to ±1% without functional impact
• Temperature coefficient of ±150ppm/°C or better is acceptable
• Additional features (anti-sulfur, automotive qualification) do not prevent substitution

Identified Substitutes:

The ERJ-U6QJR91V (Panasonic) is a direct equivalent with identical tolerance (±5%), matching all mandatory parameters including package, power rating, temperature range, and compliance certifications.

The ERJ-U6QFR91V (Panasonic) is a compatible substitute with improved tolerance specification (±1%), meeting all mandatory parameters while providing enhanced precision characteristics suitable for applications where tighter tolerance is beneficial.

Parameter Comparison

Engineering Selection Recommendations

RUT2012JR910CS (Primary Part): Select this Samsung Electro-Mechanics component when current sourcing is available and moisture-resistant thick film characteristics are the primary design requirement. The part is Active status with full ROHS3 and MSL 1 compliance.

ERJ-U6QJR91V (Direct Equivalent): This Panasonic substitute provides identical electrical specifications (910 mOhms ±5%, 0.25W, -55°C to 155°C) with AEC-Q200 automotive qualification and anti-sulfur protection. Select when Panasonic sourcing is preferred or when automotive-grade reliability is required. Physical height is 0.026" (0.65mm) versus 0.024" (0.61mm) for the Samsung part; verify PCB clearance in space-constrained layouts.

ERJ-U6QFR91V (Enhanced Tolerance Substitute): This Panasonic component offers improved tolerance specification (±1% versus ±5%) while maintaining all other electrical and mechanical parameters. Select when circuit design requires tighter resistance tolerance for precision current sensing applications. AEC-Q200 rating and anti-sulfur features provide enhanced environmental protection. Physical height is 0.026" (0.65mm); verify PCB clearance compatibility.

All three parts are Active status, ROHS3 compliant, and MSL 1 rated. Selection between substitutes depends on sourcing availability, tolerance requirements, and automotive qualification necessity.

Frequently Asked Questions (FAQ)

Q: Can ERJ-U6QJR91V replace RUT2012JR910CS in a current sense application?

A: Yes. Both parts have identical resistance (910 mOhms), tolerance (±5%), power rating (0.25W), package (0805), temperature range (-55°C to 155°C), and compliance certifications (ROHS3, MSL 1). The Panasonic part includes AEC-Q200 automotive qualification and anti-sulfur protection as additional features. Verify PCB height clearance; the Panasonic part is 0.026" (0.65mm) maximum seated height versus 0.024" (0.61mm) for the Samsung part.

Q: What is the difference between ERJ-U6QJR91V and ERJ-U6QFR91V?

A: The primary difference is tolerance specification. ERJ-U6QJR91V has ±5% tolerance (matching the original RUT2012JR910CS), while ERJ-U6QFR91V has ±1% tolerance. Both parts share identical resistance value (910 mOhms), power rating (0.25W), package (0805), temperature range (-55°C to 155°C), and compliance status. Select ERJ-U6QFR91V when circuit design requires tighter tolerance for precision current measurement.

Q: Are the package dimensions identical across all three parts?

A: The lateral dimensions are identical: 0.079" L x 0.049" W (2.00mm x 1.25mm). The seated height differs slightly: RUT2012JR910CS is 0.024" (0.61mm) maximum, while both Panasonic parts (ERJ-U6QJR91V and ERJ-U6QFR91V) are 0.026" (0.65mm) maximum. Verify PCB layout clearance for components mounted adjacent to these resistors.

Q: Do all three parts meet automotive standards?

A: The RUT2012JR910CS and ERJ-U6QJR91V are both suitable for current sense applications. The Panasonic parts (ERJ-U6QJR91V and ERJ-U6QFR91V) carry explicit AEC-Q200 automotive qualification with anti-sulfur protection. Select Panasonic parts when automotive-grade reliability certification is a design requirement.

Q: What is the temperature coefficient specification for these resistors?

A: All three parts have a temperature coefficient of ±150ppm/°C, ensuring consistent resistance stability across the operating temperature range of -55°C to 155°C.

Q: Are these parts RoHS compliant?

A: Yes. All three parts (RUT2012JR910CS, ERJ-U6QJR91V, and ERJ-U6QFR91V) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level rating.