RUT2012FR270CS Equivalent & Substitute Parts

Part Overview

The RUT2012FR270CS is a 270 mOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, designed for current sensing applications in 0805 (2012 Metric) package format. This component operates at 0.25W (1/4W) power rating with moisture-resistant construction and is classified as Active product status. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component's functional requirements.

Substiute Parts

RUT2012FR270CS

Samsung Electro-MechanicsIn Stock: 1100RUT2012FR270CS Datasheet

Current PartRFQ

ERJ-U6QFR27V

Panasonic Electronic ComponentsIn Stock: 55680ERJ-U6QFR27V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RUT2012FR270CS is determined by strict alignment of the following parameters:

Critical Electrical Parameters:

• Resistance value: 270 mOhms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Temperature coefficient: ±150ppm/°C
• Operating temperature range: -55°C ~ 155°C

Critical 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 Requirements:

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

The ERJ-U6QFR27V from Panasonic Electronic Components meets all critical electrical and mechanical parameters. Both components share identical resistance, tolerance, power rating, temperature coefficient, and operating temperature specifications. Package dimensions and termination count are equivalent. Both components maintain ROHS3 compliance and MSL 1 rating.

Parameter Comparison

Engineering Selection Recommendations

Both the RUT2012FR270CS and ERJ-U6QFR27V are Active status components with full ROHS3 compliance and MSL 1 rating. The electrical specifications are identical across all critical parameters: 270 mOhms resistance, ±1% tolerance, 0.25W power rating, ±150ppm/°C temperature coefficient, and -55°C ~ 155°C operating temperature range.

The ERJ-U6QFR27V includes AEC-Q200 automotive qualification and anti-sulfur features, which provide additional environmental protection beyond the moisture-resistant specification of the RUT2012FR270CS. The maximum seated height differs by 0.002" (0.04mm), which remains within typical PCB assembly tolerances for 0805 components.

Selection between these components depends on application requirements: the RUT2012FR270CS for standard current sensing applications, or the ERJ-U6QFR27V for automotive or high-reliability environments requiring AEC-Q200 qualification.

Frequently Asked Questions (FAQ)

Q: Can ERJ-U6QFR27V replace RUT2012FR270CS in all applications?

A: Yes, for applications requiring equivalent electrical performance. The ERJ-U6QFR27V meets all critical electrical parameters: 270 mOhms ±1%, 0.25W power rating, ±150ppm/°C temperature coefficient, and -55°C ~ 155°C operating temperature. Both components use 0805 (2012 Metric) packaging with identical lateral dimensions. The 0.002" height difference is within standard PCB assembly tolerances.

Q: What are the key differences between these two parts?

A: The primary differences are manufacturer origin and additional certifications. The ERJ-U6QFR27V includes AEC-Q200 automotive qualification and anti-sulfur features, while the RUT2012FR270CS emphasizes moisture-resistant construction. Both maintain ROHS3 compliance and MSL 1 rating. Maximum seated height differs by 0.002" (0.04mm).

Q: Are both parts suitable for current sensing applications?

A: Yes. Both components are specified for current sensing applications with identical resistance values, tolerances, and temperature coefficients. The 270 mOhms resistance and ±1% tolerance provide equivalent current measurement accuracy in both parts.

Q: What is the significance of AEC-Q200 qualification on the ERJ-U6QFR27V?

A: AEC-Q200 qualification indicates the component meets automotive industry reliability standards. This certification is relevant for automotive applications or high-reliability environments. For non-automotive applications, this qualification provides no functional advantage.

Q: Can these components be used interchangeably on the same PCB assembly?

A: Yes. Both components use identical 0805 (2012 Metric) package footprints with equivalent lateral dimensions (0.079" L x 0.049" W). The 0.002" seated height difference does not affect PCB layout or assembly compatibility.

Q: What compliance certifications apply to both parts?

A: Both components are ROHS3 compliant and carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions. Both are classified as REACH Unaffected and carry EAR99 ECCN designation.