RCS2012F27R4CS Equivalent & Substitute Parts

Part Overview

The RCS2012F27R4CS is a 27.4 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package format. This component is rated for 0.125W (1/8W) power dissipation and features anti-sulfur and moisture-resistant construction. 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 package compatibility align with the original component's performance envelope.

Substiute Parts

RCS2012F27R4CS

Samsung Electro-MechanicsIn Stock: 705RCS2012F27R4CS Datasheet

Current PartRFQ

CRCW080527R4FKEA

Vishay DaleIn Stock: 95469CRCW080527R4FKEA Datasheet

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ERJ-6ENF27R4V

Panasonic Electronic ComponentsIn Stock: 77415ERJ-6ENF27R4V Datasheet

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RC0805FR-0727R4L

YAGEOIn Stock: 66584RC0805FR-0727R4L Datasheet

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RMCF0805FT27R4

Stackpole Electronics IncIn Stock: 11348RMCF0805FT27R4 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F27R4CS are qualified based on the following criteria:

Electrical Parameters (Must Match):

• Resistance value: 27.4 Ohms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

• Package / Case: 0805 (2012 Metric)
• Supplier device package: 0805
• Size / Dimension: 0.079" L x 0.049" W (2.00mm x 1.25mm)
• Number of terminations: 2

Compliance Parameters (Must Match):

• Composition: Thick Film
• RoHS Status: RoHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

All identified substitute parts meet these core requirements. Variations in seated height and specific feature sets (automotive AEC-Q200 certification, anti-sulfur properties, moisture resistance) do not disqualify substitution but represent design-specific enhancements available in certain alternatives.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and full RoHS3 compliance, ensuring regulatory alignment with the original RCS2012F27R4CS component. The electrical and mechanical specifications are identical across all alternatives, supporting direct substitution in circuit applications.

CRCW080527R4FKEA (Vishay Dale) and RMCF0805FT27R4 (Stackpole Electronics Inc) include automotive AEC-Q200 certification, qualifying these parts for automotive-grade applications where enhanced reliability standards are required. ERJ-6ENF27R4V (Panasonic Electronic Components) similarly carries AEC-Q200 qualification.

RC0805FR-0727R4L (YAGEO) and RCS2012F27R4CS (Samsung) both feature moisture-resistant construction without automotive certification, suitable for general industrial and consumer applications.

Seated height variations across the substitute set range from 0.020" to 0.028", all within typical PCB assembly tolerances for 0805 package components. Component selection should align with specific application requirements regarding automotive qualification and environmental protection features.

Frequently Asked Questions (FAQ)

Q: Can CRCW080527R4FKEA replace RCS2012F27R4CS in any application?

A: CRCW080527R4FKEA meets all core electrical and mechanical specifications for direct substitution. The primary difference is the inclusion of automotive AEC-Q200 certification, which represents an enhanced reliability qualification. This part is suitable for applications originally designed for RCS2012F27R4CS.

Q: What is the significance of AEC-Q200 certification on substitute parts?

A: AEC-Q200 certification indicates the component meets automotive industry reliability and qualification standards. Parts carrying this certification (CRCW080527R4FKEA, ERJ-6ENF27R4V, RMCF0805FT27R4) are qualified for automotive applications. Non-certified parts (RC0805FR-0727R4L, RCS2012F27R4CS) are suitable for general industrial and consumer use.

Q: Are there physical compatibility concerns with the different seated heights?

A: Seated height variations range from 0.020" to 0.028" across the substitute set. These differences fall within standard PCB assembly tolerances for 0805 (2012 Metric) package components and do not create physical compatibility issues in standard surface-mount assembly processes.

Q: Do all substitute parts share the same moisture sensitivity level?

A: Yes. All parts listed, including RCS2012F27R4CS and all substitutes, carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.

Q: What is the basis for substitution compatibility?

A: Substitution is based on matching resistance value (27.4 Ohms), tolerance (±1%), power rating (0.125W), package format (0805), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), composition (thick film), and compliance status (RoHS3, REACH Unaffected). All identified parts meet these criteria.

Q: Can ERJ-6ENF27R4V be used in place of RMCF0805FT27R4?

A: Yes. Both parts share identical electrical specifications, package format, and compliance certifications. Both carry AEC-Q200 automotive qualification. The seated height difference (0.028" versus 0.026") does not affect functional compatibility.

Q: Is the anti-sulfur feature of RCS2012F27R4CS critical for substitution?

A: Anti-sulfur and moisture-resistant features represent design enhancements specific to certain manufacturers. Substitute parts without explicit anti-sulfur designation remain compatible for standard applications. Selection should reflect specific environmental requirements of the end application.