RUT2012JR220CS Equivalent & Substitute Parts

Part Overview

The RUT2012JR220CS is a 220 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 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 permit tolerance relaxation, enhanced automotive qualification, or alternative sourcing for supply chain optimization while maintaining electrical and mechanical compatibility.

Substiute Parts

RUT2012JR220CS

Samsung Electro-MechanicsIn Stock: 1027RUT2012JR220CS Datasheet

Current PartRFQ

ERJ-U6QFR22V

Panasonic Electronic ComponentsIn Stock: 47136ERJ-U6QFR22V Datasheet

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ERJ-U6QJR22V

Panasonic Electronic ComponentsIn Stock: 14084ERJ-U6QJR22V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RUT2012JR220CS is based on the following allowed parameters:

Mandatory Matching Criteria:

• Resistance value: 220 mOhms (exact match required)
• Package type: 0805 (2012 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Power rating: 0.25W minimum (equal or higher acceptable)
• Operating temperature range: -55°C to 155°C minimum (equal or wider acceptable)
• Temperature coefficient: ±150ppm/°C maximum (equal or better acceptable)
• RoHS compliance: ROHS3 (exact match required)
• Moisture sensitivity: MSL 1 or better (equal or better acceptable)

Permissible Variation:

• Tolerance: ±5% baseline; tighter tolerances (±1%) are acceptable substitutes as they provide improved accuracy without compromising circuit function
• Additional features: Anti-sulfur and automotive AEC-Q200 qualification represent enhanced specifications that do not prevent substitution

The identified substitute parts (ERJ-U6QJR22V and ERJ-U6QFR22V) from Panasonic Electronic Components meet all mandatory matching criteria while offering equivalent or superior electrical and environmental performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

ERJ-U6QJR22V (Panasonic) - Direct Equivalent:

The ERJ-U6QJR22V provides direct electrical and mechanical equivalence to the RUT2012JR220CS. Both components share identical resistance value (220 mOhms), tolerance (±5%), power rating (0.25W), package (0805), and operating temperature range (-55°C to 155°C). The ERJ-U6QJR22V incorporates anti-sulfur construction and AEC-Q200 automotive qualification, which represent enhanced environmental protection without altering core electrical performance. This part is suitable for applications where the original Samsung component is unavailable or where automotive-grade reliability is beneficial.

ERJ-U6QFR22V (Panasonic) - Enhanced Tolerance Substitute:

The ERJ-U6QFR22V offers improved tolerance specification (±1% versus ±5%) while maintaining all other electrical and mechanical parameters identical to the RUT2012JR220CS. The tighter tolerance reduces resistance value variation and improves circuit accuracy in current sensing applications. This part is appropriate for designs where enhanced precision is required or where tolerance stack-up analysis permits the use of a superior specification component. Like the ERJ-U6QJR22V, it includes anti-sulfur construction and AEC-Q200 qualification.

Selection Criteria:

Both Panasonic substitutes maintain ROHS3 compliance, MSL 1 rating, and Active product status. The maximum seated height difference (0.026" versus 0.024") is within typical PCB assembly tolerances for 0805 components. Selection between the two Panasonic options depends on tolerance requirements: use ERJ-U6QJR22V for direct specification matching, or ERJ-U6QFR22V when improved accuracy is specified or beneficial.

Frequently Asked Questions (FAQ)

Q: Can ERJ-U6QJR22V or ERJ-U6QFR22V be used as direct replacements for RUT2012JR220CS on existing PCBs?

A: Yes. Both Panasonic parts are mechanically and electrically compatible. The 0805 (2012 Metric) package dimensions are identical, and the maximum seated height difference (0.026" versus 0.024") falls within standard PCB assembly tolerances. No PCB redesign is required.

Q: What is the difference between ERJ-U6QJR22V and ERJ-U6QFR22V?

A: The primary difference is tolerance specification. ERJ-U6QJR22V maintains ±5% tolerance matching the original RUT2012JR220CS, while ERJ-U6QFR22V provides ±1% tolerance for improved accuracy. All other electrical and mechanical parameters are identical. Both include anti-sulfur construction and AEC-Q200 automotive qualification.

Q: Does the ±1% tolerance of ERJ-U6QFR22V affect circuit compatibility?

A: No. Tighter tolerance represents an improvement that does not compromise compatibility. If the original design functions with ±5% tolerance, it will function with ±1% tolerance. The ERJ-U6QFR22V may improve circuit performance in applications sensitive to resistance value variation.

Q: Are the Panasonic substitutes suitable for automotive applications?

A: Yes. Both ERJ-U6QJR22V and ERJ-U6QFR22V carry AEC-Q200 automotive qualification and anti-sulfur construction, making them suitable for automotive and harsh environment applications.

Q: What is the significance of the anti-sulfur feature on the Panasonic parts?

A: Anti-sulfur construction provides enhanced resistance to sulfur-containing atmospheric contaminants, which can degrade component performance in industrial and automotive environments. This feature does not affect compatibility with the original RUT2012JR220CS but provides additional environmental protection.

Q: Are all three parts (RUT2012JR220CS, ERJ-U6QJR22V, ERJ-U6QFR22V) RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, meeting current environmental and reliability standards.

Q: Can these parts be used interchangeably in production?

A: Yes, provided that tolerance specifications are acceptable for the application. ERJ-U6QJR22V provides direct specification matching. ERJ-U6QFR22V can be used when tighter tolerance is acceptable or beneficial. Both maintain identical electrical performance across the specified operating temperature range (-55°C to 155°C).