RC2012F42R2CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012F42R2CS is a 42.2 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format with 0.125W power rating. This component is classified as Active product status and is RoHS3 Compliant with REACH Unaffected designation. The part operates across -55°C to 155°C temperature range with ±100ppm/°C temperature coefficient and Moisture Sensitivity Level 1 (Unlimited). Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental compliance requirements.

Substiute Parts

RC2012F42R2CS

Samsung Electro-MechanicsIn Stock: 949RC2012F42R2CS Datasheet

Current PartRFQ

RC0805FR-0742R2L

YAGEOIn Stock: 57176RC0805FR-0742R2L Datasheet

DirectRFQ

CRCW080542R2FKEA

Vishay DaleIn Stock: 22891CRCW080542R2FKEA Datasheet

SimilarRFQ

ERJ-6ENF42R2V

Panasonic Electronic ComponentsIn Stock: 37905ERJ-6ENF42R2V Datasheet

SimilarRFQ

RMCF0805FT42R2

Stackpole Electronics IncIn Stock: 960RMCF0805FT42R2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for RC2012F42R2CS are qualified based on the following criteria:

Electrical Parameters (Critical):

• Resistance value: 42.2 Ohms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Critical):

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

Compliance Parameters (Required):

• RoHS3 Compliant
• REACH Unaffected
• Moisture Sensitivity Level: 1 (Unlimited)
• Packaging: Tape & Reel (TR)

All identified substitute parts meet these core criteria. Additional features such as Automotive AEC-Q200 certification are noted as supplementary qualifications available in certain substitute options.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are functionally equivalent to RC2012F42R2CS based on matching electrical and mechanical specifications. Selection among these alternatives should be based on the following factors:

Availability and Lead Time: RC0805FR-0742L (YAGEO) offers the highest inventory level at 57,159 pieces, providing optimal availability for high-volume applications. CRCW080542R2FKEA (Vishay Dale) provides 22,846 pieces. ERJ-6ENF42R2V (Panasonic) provides 37,839 pieces. RMCF0805FT42R2 (Stackpole) provides 883 pieces with limited availability.

Automotive Applications: CRCW080542R2FKEA (Vishay Dale), ERJ-6ENF42R2V (Panasonic), and RMCF0805FT42R2 (Stackpole) carry Automotive AEC-Q200 certification. These parts are suitable for automotive-grade applications requiring enhanced reliability qualification. RC0805FR-0742R2L (YAGEO) does not carry AEC-Q200 designation and is suitable for general industrial and consumer applications.

Physical Height Considerations: All substitute parts maintain compatibility within the 0805 package envelope. CRCW080542R2FKEA (Vishay Dale) has the lowest seated height at 0.020" (0.50mm), followed by RC0805FR-0742R2L (YAGEO) at 0.024" (0.60mm). ERJ-6ENF42R2V (Panasonic) has the highest seated height at 0.028" (0.70mm). Height variations are within typical PCB assembly tolerances for 0805 components.

Compliance and Regulatory: All parts are RoHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements. All parts maintain Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-0742R2L (YAGEO) be used as a direct replacement for RC2012F42R2CS (Samsung)?

A: Yes. RC0805FR-0742R2L meets all electrical and mechanical specifications of RC2012F42R2CS. Both parts have 42.2 Ohm resistance, ±1% tolerance, 0.125W power rating, 0805 package, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Both are RoHS3 Compliant with MSL 1 (Unlimited). The seated height difference of 0.002" (0.06mm) is within standard PCB assembly tolerances.

Q: What is the difference between the Samsung RC2012F42R2CS and the Vishay CRCW080542R2FKEA?

A: The primary difference is Automotive AEC-Q200 certification on CRCW080542R2FKEA. Both parts share identical electrical specifications (42.2 Ohms, ±1%, 0.125W, ±100ppm/°C, -55°C to 155°C). CRCW080542R2FKEA has a lower seated height of 0.020" (0.50mm) compared to RC2012F42R2CS at 0.026" (0.66mm). AEC-Q200 certification indicates automotive-grade reliability qualification.

Q: Are all substitute parts suitable for automotive applications?

A: CRCW080542R2FKEA (Vishay Dale), ERJ-6ENF42R2V (Panasonic), and RMCF0805FT42R2 (Stackpole) carry Automotive AEC-Q200 certification and are suitable for automotive applications. RC0805FR-0742R2L (YAGEO) does not carry AEC-Q200 designation and is suitable for general industrial and consumer applications. For automotive applications, use only AEC-Q200 certified alternatives.

Q: Do all substitute parts have the same physical dimensions?

A: All substitute parts use the 0805 (2012 Metric) package with identical length (0.079" / 2.00mm) and width (0.049" / 1.25mm). Seated height varies slightly: RC2012F42R2CS at 0.026" (0.66mm), RC0805FR-0742R2L at 0.024" (0.60mm), CRCW080542R2FKEA at 0.020" (0.50mm), ERJ-6ENF42R2V at 0.028" (0.70mm), and RMCF0805FT42R2 at 0.026" (0.65mm). These variations are within standard PCB assembly tolerances for 0805 components.

Q: What is the difference between moisture resistant and AEC-Q200 features?

A: Moisture resistant is a material property indicating the resistor composition resists moisture absorption. All listed parts are moisture resistant thick film resistors with MSL 1 (Unlimited), meaning no special moisture handling is required. AEC-Q200 is an automotive qualification standard indicating the part meets enhanced reliability and performance requirements for automotive applications. Not all moisture resistant parts carry AEC-Q200 certification.

Q: Can I use RMCF0805FT42R2 (Stackpole) if inventory is limited?

A: RMCF0805FT42R2 is electrically and mechanically equivalent to RC2012F42R2CS and meets all specified parameters. However, current inventory is 883 pieces, which is significantly lower than other alternatives. For applications requiring high-volume supply or extended lead time assurance, RC0805FR-0742R2L (YAGEO) with 57,159 pieces or ERJ-6ENF42R2V (Panasonic) with 37,839 pieces provide better availability.

Q: Are all parts available in Tape & Reel packaging?

A: Yes. All listed parts, including RC2012F42R2CS (Samsung), RC0805FR-0742R2L (YAGEO), CRCW080542R2FKEA (Vishay Dale), ERJ-6ENF42R2V (Panasonic), and RMCF0805FT42R2 (Stackpole), are supplied in Tape & Reel (TR) packaging suitable for automated assembly processes.