Equivalent & Substitute Parts for RC2012J3R0CS

Part Overview

The RC2012J3R0CS is a 3 Ohm ±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 RoHS3 compliant with MSL 1 rating. Substitute parts are identified based on matching resistance value, package dimensions, power rating, and operating temperature range while accommodating variations in tolerance and manufacturer-specific certifications.

Substiute Parts

RC2012J3R0CS

Samsung Electro-MechanicsIn Stock: 721RC2012J3R0CS Datasheet

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RC0805FR-073RL

YAGEOIn Stock: 457937RC0805FR-073RL Datasheet

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RC0805JR-073RL

YAGEOIn Stock: 62652RC0805JR-073RL Datasheet

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RMCF0805FT3R00

Stackpole Electronics IncIn Stock: 17903RMCF0805FT3R00 Datasheet

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RMCF0805JT3R00

Stackpole Electronics IncIn Stock: 7928RMCF0805JT3R00 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Matching Parameters:

• Resistance value: 3 Ohms (exact match required)
• Package format: 0805 (2012 Metric) (exact match required)
• Power rating: 0.125W, 1/8W (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Composition: Thick Film (exact match required)

Secondary Variation Parameters:

• Tolerance: ±5% (main part) to ±1% (substitute parts acceptable; tighter tolerance is compatible)
• Temperature coefficient: ±300ppm/°C (main part) to ±200ppm/°C (substitute parts acceptable; lower coefficient is compatible)
• Height - Seated: 0.026" (0.65mm) main part to 0.024" (0.60mm) substitute parts (within PCB assembly tolerance)
• Manufacturer certifications: Moisture Resistant (main part) to Automotive AEC-Q200 (substitute parts; additional certification is compatible)

All substitute parts maintain identical electrical performance within the specified operating parameters and are mechanically compatible with the original part's footprint.

Parameter Comparison

Engineering Selection Recommendations

RC0805FR-073RL (YAGEO): This substitute provides ±1% tolerance compared to the original ±5%, with identical power rating and package dimensions. Temperature coefficient is improved to ±200ppm/°C. All compliance certifications match the original part. This option is suitable for applications requiring tighter tolerance specifications.

RC0805JR-073RL (YAGEO): This substitute maintains the ±5% tolerance of the original part with identical electrical and mechanical specifications. Temperature coefficient is improved to ±200ppm/°C. All compliance certifications match the original part. This option provides direct functional equivalence.

RMCF0805FT3R00 (Stackpole Electronics Inc): This substitute provides ±1% tolerance with Automotive AEC-Q200 certification. Temperature coefficient is ±200ppm/°C. Height dimension matches the original part at 0.026" (0.65mm). This option is suitable for automotive-grade applications requiring enhanced reliability qualification.

RMCF0805JT3R00 (Stackpole Electronics Inc): This substitute maintains the ±5% tolerance of the original part with Automotive AEC-Q200 certification. Temperature coefficient is ±200ppm/°C. Height dimension matches the original part at 0.026" (0.65mm). This option is suitable for automotive-grade applications requiring enhanced reliability qualification with matching tolerance specifications.

All substitute parts are Active product status and maintain full RoHS3 compliance and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-073RL replace RC2012J3R0CS in all applications?

A: RC0805FR-073RL is electrically and mechanically compatible with RC2012J3R0CS. The ±1% tolerance of the substitute is tighter than the original ±5%, which is compatible with any circuit designed for the original part. Both parts share identical package dimensions, power rating, and operating temperature range.

Q: What is the difference between YAGEO and Stackpole substitute options?

A: YAGEO substitutes (RC0805FR-073RL and RC0805JR-073RL) feature Moisture Resistant composition. Stackpole substitutes (RMCF0805FT3R00 and RMCF0805JT3R00) feature Automotive AEC-Q200 certification, indicating qualification for automotive applications with enhanced reliability testing. All four substitutes are mechanically and electrically compatible with the original part.

Q: Does the height difference between 0.026" and 0.024" affect PCB assembly?

A: The height difference of 0.002" (0.05mm) is within standard PCB assembly tolerances for 0805 package components. Both dimensions are acceptable for standard reflow soldering processes. RC0805FR-073RL and RC0805JR-073RL have 0.024" height; RMCF0805FT3R00 and RMCF0805JT3R00 have 0.026" height matching the original part.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed are ROHS3 Compliant with MSL 1 (Unlimited) rating, matching the original RC2012J3R0CS specifications.

Q: Which substitute should I select for tolerance-critical applications?

A: RC0805FR-073RL or RMCF0805FT3R00 provide ±1% tolerance compared to the original ±5%. Selection between these two depends on whether Automotive AEC-Q200 certification is required for your application.

Q: Can I use these substitutes interchangeably on the same PCB?

A: All four substitute parts share identical 0805 (2012 Metric) package footprints and are mechanically interchangeable. Electrical performance differences are limited to tolerance and temperature coefficient specifications, which are compatible with circuits designed for the original part.