RUT2012FR220CS Equivalent & Substitute Parts

Part Overview

The RUT2012FR220CS is a 220 mOhms ±1% 0.25W thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is designed for current sensing applications requiring moisture resistance and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with 917 units currently in stock.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

RUT2012FR220CS

Samsung Electro-MechanicsIn Stock: 1000RUT2012FR220CS Datasheet

Current PartRFQ

ERJ-U6QFR22V

Panasonic Electronic ComponentsIn Stock: 47136ERJ-U6QFR22V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RUT2012FR220CS is determined by strict alignment of the following parameters:

Critical Electrical Parameters:

• Resistance value: 220 mOhms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Temperature coefficient: ±150ppm/°C
• Operating temperature range: -55°C to 155°C

Critical Mechanical Parameters:

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

Compliance Parameters:

• RoHS3 Compliant
• Moisture Sensitivity Level: MSL 1 (Unlimited)

The ERJ-U6QFR22V from Panasonic Electronic Components meets all critical electrical and mechanical parameters. While the substitute part includes additional features (Anti-Sulfur, Automotive AEC-Q200 certification), these do not conflict with the original specification and represent enhanced capability within the same functional class.

Parameter Comparison

Engineering Selection Recommendations

RUT2012FR220CS (Samsung Electro-Mechanics) is the primary component specification. Selection of this part is appropriate for applications requiring moisture-resistant current sensing resistors with standard industrial compliance.

ERJ-U6QFR22V (Panasonic Electronic Components) is a direct electrical and mechanical equivalent. This substitute part is suitable for applications requiring automotive-grade reliability through AEC-Q200 certification and anti-sulfur protection. The marginal height difference (0.026" versus 0.024" maximum seated height) remains within typical PCB assembly tolerances for 0805 packages and does not present mechanical interference concerns in standard surface-mount applications.

Both parts maintain identical electrical performance, thermal characteristics, and regulatory compliance (ROHS3, MSL 1). Selection between these parts depends on supply chain availability, cost considerations, and whether automotive-grade qualification is required for the end application.

Frequently Asked Questions (FAQ)

Q: Can ERJ-U6QFR22V replace RUT2012FR220CS in all applications?

A: Yes. Both parts share identical electrical specifications (220 mOhms ±1%, 0.25W, ±150ppm/°C), mechanical package (0805), and compliance certifications (ROHS3, MSL 1). The substitute part includes additional automotive qualification (AEC-Q200) and anti-sulfur features that do not conflict with the original specification.

Q: What is the significance of the height difference (0.024" vs 0.026")?

A: The 0.002" (0.04mm) difference in maximum seated height is within standard PCB assembly tolerances for 0805 chip resistors and does not create mechanical interference or assembly issues in typical surface-mount applications.

Q: Are both parts suitable for current sensing applications?

A: Yes. Both the RUT2012FR220CS and ERJ-U6QFR22V are specified for current sensing applications. The 220 mOhms resistance value and ±1% tolerance are standard for precision current measurement circuits.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the lowest moisture sensitivity level. Both parts can be stored indefinitely without moisture baking requirements prior to reflow soldering, providing maximum handling flexibility.

Q: Are there any compliance differences between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. The ERJ-U6QFR22V includes additional AEC-Q200 automotive qualification, which represents enhanced reliability screening but does not alter the base electrical or mechanical specifications.