RCS2012F1051CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F1051CS is a 1.05 kOhms ±1% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component features anti-sulfur and moisture-resistant construction, operating across -55°C to 155°C with a temperature coefficient of ±100ppm/°C. The part is Active status and ROHS3 compliant with MSL 1 rating. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to ensure direct interchangeability in circuit applications.

Substiute Parts

RCS2012F1051CS

Samsung Electro-MechanicsIn Stock: 875RCS2012F1051CS Datasheet

Current PartRFQ

CRCW08051K05FKEA

Vishay DaleIn Stock: 19601CRCW08051K05FKEA Datasheet

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ERJ-6ENF1051V

Panasonic Electronic ComponentsIn Stock: 48972ERJ-6ENF1051V Datasheet

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RC0805FR-071K05L

YAGEOIn Stock: 63340RC0805FR-071K05L Datasheet

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RMCF0805FT1K05

Stackpole Electronics IncIn Stock: 5658RMCF0805FT1K05 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F1051CS are qualified based on the following criteria:

Electrical Parameters (Critical for Interchangeability):

• Resistance value: 1.05 kOhms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Critical for Physical Compatibility):

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

Compliance & Environmental Parameters:

• RoHS3 compliance
• MSL 1 rating
• Composition: Thick Film

All identified substitute parts match these core parameters, ensuring functional and physical compatibility with the original RCS2012F1051CS component.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are Active status components with ROHS3 compliance and MSL 1 rating, matching the environmental and regulatory requirements of the original RCS2012F1051CS.

For General Applications: RC0805FR-071K05L (YAGEO) and RCS2012F1051CS (Samsung Electro-Mechanics) are suitable for standard industrial and consumer applications with moisture-resistant construction.

For Automotive Applications: CRCW08051K05FKEA (Vishay Dale), ERJ-6ENF1051V (Panasonic Electronic Components), and RMCF0805FT1K05 (Stackpole Electronics Inc) carry AEC-Q200 automotive qualification, appropriate for automotive-grade circuit designs.

Physical Clearance Consideration: Height variations range from 0.50mm to 0.70mm. Applications with tight vertical spacing constraints should reference the specific height specification of the selected substitute.

Frequently Asked Questions (FAQ)

Q: Can CRCW08051K05FKEA replace RCS2012F1051CS directly? A: Yes. Both components share identical electrical specifications (1.05 kOhms ±1%, 0.125W), temperature coefficient (±100ppm/°C), operating range (-55°C ~ 155°C), and 0805 package format. CRCW08051K05FKEA includes automotive AEC-Q200 qualification, making it suitable for both general and automotive applications.

Q: What is the difference between the substitute parts? A: All substitutes match core electrical and mechanical parameters. Primary differences are manufacturer identity, height profile (0.50mm to 0.70mm), and feature set. Three parts (CRCW08051K05FKEA, ERJ-6ENF1051V, RMCF0805FT1K05) include AEC-Q200 automotive qualification. RC0805FR-071K05L and RCS2012F1051CS emphasize moisture-resistant construction without automotive certification.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 rating, matching the environmental compliance profile of the original RCS2012F1051CS.

Q: Does package dimension compatibility affect substitution? A: All parts use 0805 (2012 Metric) package with identical length (0.079") and width (0.049"). Height variations (0.50mm to 0.70mm) are within standard 0805 specifications and do not affect PCB footprint compatibility. Applications with height-constrained designs should verify the specific height requirement.

Q: Can automotive-qualified parts be used in non-automotive applications? A: Yes. Automotive-qualified parts (AEC-Q200) meet or exceed general industrial specifications and are suitable for non-automotive applications. The reverse is not recommended: non-automotive qualified parts should not be used in automotive designs requiring AEC-Q200 certification.

Q: What is MSL 1 rating significance? A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture-related degradation. All listed parts carry this rating, ensuring consistent performance across storage and handling conditions.