RC2012J1R8CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012J1R8CS is a 1.8 Ohms ±5% 0.125W (1/8W) chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently active in production with 643 units in stock. Equivalent and substitute parts are identified based on matching resistance value, package format, power rating, and electrical specifications to ensure direct functional compatibility in circuit applications.

Substiute Parts

RC2012J1R8CS

Samsung Electro-MechanicsIn Stock: 663RC2012J1R8CS Datasheet

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ERJ-6BQF1R8V

Panasonic Electronic ComponentsIn Stock: 40740ERJ-6BQF1R8V Datasheet

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ERJ-6RQF1R8V

Panasonic Electronic ComponentsIn Stock: 30961ERJ-6RQF1R8V Datasheet

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ERJ-6RQJ1R8V

Panasonic Electronic ComponentsIn Stock: 3443ERJ-6RQJ1R8V Datasheet

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RC0805FR-071R8L

YAGEOIn Stock: 37753RC0805FR-071R8L Datasheet

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RC0805JR-071R8L

YAGEOIn Stock: 10550RC0805JR-071R8L Datasheet

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RMCF0805FT1R80

Stackpole Electronics IncIn Stock: 13710RMCF0805FT1R80 Datasheet

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RMCF0805JT1R80

Stackpole Electronics IncIn Stock: 3248RMCF0805JT1R80 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC2012J1R8CS are selected based on the following critical parameters:

Primary Matching Criteria:

• Resistance value: 1.8 Ohms (exact match required)
• Package format: 0805 (2012 Metric) (exact match required)
• Power rating: 0.125W (1/8W) minimum
• Operating temperature range: -55°C ~ 155°C minimum
• Composition: Thick Film
• Compliance: ROHS3 and MSL 1

Substitution Categories:

Direct Equivalents (Identical Specifications): Parts matching all parameters of the main part, including ±5% tolerance and 0.125W power rating.

Upgraded Substitutes (Enhanced Specifications): Parts with improved tolerance (±1% vs ±5%), higher power ratings (0.333W), or automotive-grade certifications (AEC-Q200) while maintaining the same resistance, package, and operating temperature range.

All substitute parts maintain compatibility through identical package dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm), two terminations, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): RC0805JR-071R8L (YAGEO) and RMCF0805JT1R80 (Stackpole Electronics Inc) provide direct functional equivalence to RC2012J1R8CS with matching 1.8 Ohms ±5% tolerance and 0.125W power rating. Both maintain identical operating temperature range (-55°C ~ 155°C), ROHS3 compliance, and MSL 1 rating. RC0805JR-071R8L is available in Cut Tape packaging, while RMCF0805JT1R80 is supplied in Tape & Reel format matching the original part.

For Upgraded Performance (Enhanced Tolerance): ERJ-6RQF1R8V (Panasonic) and RC0805FR-071R8L (YAGEO) and RMCF0805FT1R80 (Stackpole) offer improved ±1% tolerance while maintaining 0.125W power rating and identical package specifications. These parts reduce tolerance stack-up in precision applications. All three carry AEC-Q200 automotive qualification or equivalent moisture resistance features.

For Automotive Applications: ERJ-6RQF1R8V, ERJ-6RQJ1R8V (Panasonic), RMCF0805FT1R80, and RMCF0805JT1R80 (Stackpole) carry AEC-Q200 automotive certification. ERJ-6BQF1R8V provides the highest power rating (0.333W) with AEC-Q200 qualification for applications requiring additional thermal margin.

All substitute parts are ROHS3 compliant with MSL 1 rating, ensuring compatibility with standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can ERJ-6RQF1R8V replace RC2012J1R8CS directly? A: Yes. ERJ-6RQF1R8V matches the critical parameters: 1.8 Ohms resistance, 0.125W power rating, 0805 package, and -55°C ~ 155°C operating range. The ±1% tolerance is tighter than the original ±5%, which is compatible. Temperature coefficient is ±200ppm/°C versus ±300ppm/°C on the original, representing improved stability.

Q: What is the difference between RC0805FR-071R8L and RC0805JR-071R8L? A: Both are YAGEO 0805 resistors with 1.8 Ohms and 0.125W rating. RC0805FR-071R8L has ±1% tolerance, while RC0805JR-071R8L has ±5% tolerance matching the original part. RC0805FR-071R8L is supplied in Tape & Reel; RC0805JR-071R8L is supplied in Cut Tape.

Q: Are Panasonic ERJ-6 series parts suitable for non-automotive applications? A: Yes. ERJ-6RQF1R8V and ERJ-6RQJ1R8V are suitable for general industrial and consumer applications. AEC-Q200 certification indicates automotive-grade reliability but does not restrict use in other applications. These parts meet all electrical and environmental specifications required for the RC2012J1R8CS application.

Q: What does MSL 1 rating mean for storage and handling? A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture baking requirements. All listed substitute parts carry MSL 1 rating, matching the original part's storage and handling requirements.

Q: Can I use ERJ-6BQF1R8V (0.333W) in place of RC2012J1R8CS (0.125W)? A: Yes. Higher power rating is compatible for direct substitution. ERJ-6BQF1R8V provides additional thermal margin and is suitable for applications where the original 0.125W rating is adequate. The 0.333W rating does not create compatibility issues in circuits designed for 0.125W components.

Q: What is the significance of temperature coefficient differences? A: RC2012J1R8CS has ±300ppm/°C; substitute parts have ±200ppm/°C. Lower temperature coefficient indicates better resistance stability across temperature variations. This is a performance improvement, not a compatibility issue.

Q: Are all substitute parts available in Tape & Reel packaging? A: Most substitute parts are available in Tape & Reel format. RC0805JR-071R8L is supplied in Cut Tape. Verify packaging requirements for your assembly process before selection.