RUT2012FR430CS Equivalent & Substitute Parts

Part Overview

The RUT2012FR430CS is a 430 mOhms ±1% 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 unlimited moisture sensitivity level (MSL 1).

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

RUT2012FR430CS

Samsung Electro-MechanicsIn Stock: 1119RUT2012FR430CS Datasheet

Current PartRFQ

ERJ-U6QFR43V

Panasonic Electronic ComponentsIn Stock: 13296ERJ-U6QFR43V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RUT2012FR430CS is determined by strict alignment of the following critical parameters:

Electrical Specifications:

• Resistance value: 430 mOhms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Temperature coefficient: ±150ppm/°C
• Operating temperature range: -55°C to 155°C

Mechanical Specifications:

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

Compliance & Environmental:

• RoHS3 compliance
• Moisture sensitivity level: 1 (Unlimited)
• Composition: Thick film

The ERJ-U6QFR43V from Panasonic Electronic Components satisfies all substitution criteria, matching the electrical and mechanical parameters while maintaining equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the RUT2012FR430CS and ERJ-U6QFR43V maintain Active product status and satisfy ROHS3 compliance requirements. The ERJ-U6QFR43V carries AEC-Q200 automotive qualification and anti-sulfur features, providing additional environmental protection suitable for automotive and harsh-environment applications. The seated height differential of 0.002" (0.04mm) between the two parts remains within typical PCB assembly tolerances and does not impact functional performance or board-level compatibility.

Selection between these parts should be based on application-specific requirements: the RUT2012FR430CS for general industrial current sense applications, and the ERJ-U6QFR43V for automotive or corrosive-environment deployments where AEC-Q200 qualification and anti-sulfur properties are specified.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-U6QFR43V directly replace the RUT2012FR430CS in existing designs?

A: Yes. Both parts share identical electrical specifications (430 mOhms ±1%, 0.25W, ±150ppm/°C), operate across the same temperature range (-55°C to 155°C), and use the 0805 (2012 Metric) package with equivalent footprints. The maximum seated height difference of 0.002" (0.04mm) is within standard PCB assembly tolerances.

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

A: The primary differences are manufacturer origin and application-specific features. The ERJ-U6QFR43V includes AEC-Q200 automotive qualification and anti-sulfur coating, making it suitable for automotive and corrosive environments. The RUT2012FR430CS is optimized for general industrial current sense applications with moisture-resistant thick film construction.

Q: Are both parts RoHS compliant?

A: Yes. Both the RUT2012FR430CS and ERJ-U6QFR43V are ROHS3 compliant and carry unlimited moisture sensitivity level (MSL 1).

Q: Does the 0.002" height difference affect PCB assembly?

A: No. The seated height difference of 0.002" (0.04mm) between the RUT2012FR430CS (0.024" max) and ERJ-U6QFR43V (0.026" max) is negligible for standard surface-mount assembly processes and does not impact reflow soldering, component placement, or board-level clearances.

Q: Which part should be selected for automotive applications?

A: The ERJ-U6QFR43V is the appropriate choice for automotive applications due to its AEC-Q200 qualification and anti-sulfur features, which provide enhanced reliability in automotive environments.