RC2012J2R4CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012J2R4CS is a 2.4 Ohms ±5% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status and is supplied in Tape & Reel packaging. The part is ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), making it suitable for general industrial and commercial applications. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and application-specific performance enhancements.

Substiute Parts

RC2012J2R4CS

Samsung Electro-MechanicsIn Stock: 990RC2012J2R4CS Datasheet

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RC0805JR-072R4L

YAGEOIn Stock: 9788RC0805JR-072R4L Datasheet

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RMCF0805FT2R40

Stackpole Electronics IncIn Stock: 11364RMCF0805FT2R40 Datasheet

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RMCF0805JT2R40

Stackpole Electronics IncIn Stock: 5843RMCF0805JT2R40 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC2012J2R4CS is determined by strict equivalence in the following critical parameters: resistance value (2.4 Ohms), package format (0805 / 2012 Metric), power rating (0.125W), composition (thick film), operating temperature range (-55°C ~ 155°C), and compliance certifications (ROHS3, MSL 1).

The identified substitute parts maintain these core parameters while offering variations in tolerance specification and manufacturer-specific features. Tolerance variations (±5% to ±1%) represent tighter performance specifications and do not preclude substitution in applications where the original ±5% tolerance is acceptable. Temperature coefficient differences (±300ppm/°C to ±200ppm/°C) and automotive qualification (AEC-Q200) represent enhanced performance characteristics that are compatible with the original specification.

All substitute parts are Active status products supplied in Tape & Reel packaging with identical physical dimensions and termination count.

Parameter Comparison

Engineering Selection Recommendations

RC0805JR-072R4L (YAGEO): This substitute maintains identical electrical specifications (2.4 Ohms ±5%, 0.125W) and package format. The improved temperature coefficient (±200ppm/°C versus ±300ppm/°C) provides enhanced stability across the operating temperature range. Physical height is reduced to 0.024" (0.60mm) compared to 0.026" (0.65mm), which may provide board layout advantages in space-constrained applications. ROHS3 compliance and MSL 1 rating match the original specification. This part is suitable for direct substitution in applications where the original Samsung part is specified.

RMCF0805FT2R40 (Stackpole): This substitute offers tighter tolerance specification (±1% versus ±5%), providing improved accuracy for precision circuit applications. AEC-Q200 automotive qualification indicates enhanced reliability testing and qualification for automotive environments. Temperature coefficient is ±200ppm/°C. Physical dimensions and package format are identical to the original part. ROHS3 compliance and MSL 1 rating are maintained. This part is suitable for applications requiring higher tolerance accuracy or automotive-grade reliability.

RMCF0805JT2R40 (Stackpole): This substitute maintains the original ±5% tolerance specification while providing AEC-Q200 automotive qualification. Temperature coefficient is ±200ppm/°C. Physical dimensions match the original specification. ROHS3 compliance and MSL 1 rating are maintained. This part is suitable for applications requiring automotive-grade reliability without tolerance tightening.

All substitute parts are Active status products with confirmed inventory availability and identical compliance certifications to the original RC2012J2R4CS.

Frequently Asked Questions (FAQ)

Q: Can RC0805JR-072R4L be used as a direct replacement for RC2012J2R4CS?

A: Yes. Both parts share identical resistance value (2.4 Ohms), tolerance (±5%), power rating (0.125W), package format (0805), composition (thick film), and operating temperature range (-55°C ~ 155°C). The YAGEO part features improved temperature coefficient (±200ppm/°C) and slightly reduced seated height (0.024" versus 0.026"), both of which are compatible with the original specification.

Q: What is the difference between RMCF0805FT2R40 and RMCF0805JT2R40?

A: Both Stackpole parts are AEC-Q200 qualified and share identical package, power rating, and operating temperature specifications. The primary difference is tolerance: RMCF0805FT2R40 specifies ±1% tolerance, while RMCF0805JT2R40 specifies ±5% tolerance matching the original RC2012J2R4CS. Selection depends on circuit accuracy requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. RC0805JR-072R4L, RMCF0805FT2R40, and RMCF0805JT2R40 are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the original RC2012J2R4CS compliance status.

Q: What does AEC-Q200 qualification mean for the Stackpole parts?

A: AEC-Q200 is an automotive industry standard qualification indicating the component has undergone enhanced reliability testing and is approved for automotive applications. This qualification does not affect compatibility with non-automotive applications; it represents an additional quality assurance level.

Q: Can I use a ±1% tolerance part (RMCF0805FT2R40) in place of a ±5% tolerance part (RC2012J2R4CS)?

A: Yes. A tighter tolerance specification (±1%) is compatible with applications designed for ±5% tolerance. The component will perform within the original tolerance band and provide improved accuracy.

Q: Are the physical dimensions identical across all parts?

A: Package format (0805 / 2012 Metric) and length/width dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm) are identical. Seated height varies slightly: RC2012J2R4CS and Stackpole parts are 0.026" (0.65mm), while RC0805JR-072R4L is 0.024" (0.60mm). This minor difference does not affect PCB assembly compatibility.

Q: What is the temperature coefficient and why does it matter?

A: Temperature coefficient indicates resistance value change per degree Celsius. RC2012J2R4CS specifies ±300ppm/°C, while all substitute parts specify ±200ppm/°C. Lower temperature coefficient indicates better stability across temperature variations, which is beneficial for precision applications but does not preclude substitution in standard applications.