RCS2012F8661CS Equivalent & Substitute Parts

Part Overview

The RCS2012F8661CS is an 8.66 kOhms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status and features anti-sulfur and moisture-resistant properties. The part 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 requirements.

Substiute Parts

RCS2012F8661CS

Samsung Electro-MechanicsIn Stock: 1003RCS2012F8661CS Datasheet

Current PartRFQ

CRCW08058K66FKEA

Vishay DaleIn Stock: 36085CRCW08058K66FKEA Datasheet

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ERJ-6ENF8661V

Panasonic Electronic ComponentsIn Stock: 166474ERJ-6ENF8661V Datasheet

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RC0805FR-078K66L

YAGEOIn Stock: 74289RC0805FR-078K66L Datasheet

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RMCF0805FT8K66

Stackpole Electronics IncIn Stock: 87307RMCF0805FT8K66 Datasheet

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RMCS0805FT8K66

Stackpole Electronics IncIn Stock: 684RMCS0805FT8K66 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F8661CS are qualified based on the following criteria:

Electrical Parameters (Must Match Exactly):

• Resistance value: 8.66 kOhms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match Exactly):

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

Compliance Parameters (Must Match or Exceed):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

All identified substitute parts meet these criteria. Variations in seated height and specific feature sets (anti-sulfur, moisture resistant, automotive AEC-Q200) do not disqualify substitution when core electrical and mechanical specifications align.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts are Active product status and ROHS3 compliant with MSL 1 rating. Selection among substitutes should be based on the following factors:

For General Applications: CRCW08058K66FKEA (Vishay Dale), RC0805FR-078K66L (YAGEO), or RMCF0805FT8K66 (Stackpole Electronics Inc) are suitable. These parts maintain full electrical and mechanical compatibility with the original RCS2012F8661CS.

For Automotive Applications: CRCW08058K66FKEA, ERJ-6ENF8661V, or RMCF0805FT8K66 carry AEC-Q200 automotive qualification ratings and are appropriate for automotive-grade circuit designs.

For Anti-Sulfur Environments: RMCS0805FT8K66 (Stackpole Electronics Inc) provides anti-sulfur protection equivalent to the original part. The RCS2012F8661CS also offers anti-sulfur and moisture-resistant features.

For Moisture-Resistant Applications: RC0805FR-078K66L (YAGEO) and RCS2012F8661CS both feature moisture-resistant properties suitable for humid or corrosive environments.

Inventory Availability: ERJ-6ENF8661V offers the highest inventory level (166,453 Pcs), followed by CRCW08058K66FKEA (35,995 Pcs) and RC0805FR-078K66L (74,195 Pcs).

Frequently Asked Questions (FAQ)

Q: Can CRCW08058K66FKEA replace RCS2012F8661CS in all applications?

A: Yes. CRCW08058K66FKEA meets all core electrical specifications (8.66 kΩ ±1%, 0.125W), mechanical dimensions (0805 package), and compliance requirements (ROHS3, MSL 1). The seated height difference (0.50mm vs 0.66mm) is within acceptable PCB assembly tolerances.

Q: What is the difference between automotive-qualified and non-automotive parts?

A: CRCW08058K66FKEA, ERJ-6ENF8661V, and RMCF0805FT8K66 carry AEC-Q200 automotive qualification, indicating they meet automotive industry reliability and performance standards. Non-automotive parts (RC0805FR-078K66L, RMCS0805FT8K66) are suitable for general industrial and consumer applications.

Q: Are there packaging differences between substitutes?

A: All substitutes use 0805 (2012 Metric) package. Packaging format differs: RCS2012F8661CS, CRCW08058K66FKEA, RC0805FR-078K66L, RMCF0805FT8K66, and RMCS0805FT8K66 are supplied in Tape & Reel (TR). ERJ-6ENF8661V is supplied in Cut Tape (CT) & Digi-Reel®. Both formats are standard for SMD component distribution.

Q: Does seated height variation affect PCB assembly?

A: Seated height variations (0.50mm to 0.70mm) are within standard PCB assembly specifications for 0805 components. All parts are compatible with standard pick-and-place equipment and reflow soldering processes.

Q: Which substitute offers the best availability?

A: ERJ-6ENF8661V (Panasonic) provides the highest inventory at 166,453 pieces. RC0805FR-078K66L (YAGEO) offers 74,195 pieces, and RMCF0805FT8K66 (Stackpole) provides 87,205 pieces.

Q: Can I use RMCS0805FT8K66 if anti-sulfur protection is required?

A: Yes. RMCS0805FT8K66 features anti-sulfur protection and meets all electrical and mechanical specifications of RCS2012F8661CS. It is suitable for applications requiring sulfur resistance.