RCS2012F42R2CS Equivalent & Substitute Parts

Part Overview

The RCS2012F42R2CS is a 42.2 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.125W (1/8W) in 0805 (2012 Metric) package format. This component is classified as Active product status with anti-sulfur and moisture-resistant construction. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements, enabling direct replacement in circuit applications without design modification.

Substiute Parts

RCS2012F42R2CS

Samsung Electro-MechanicsIn Stock: 758RCS2012F42R2CS Datasheet

Current PartRFQ

CRCW080542R2FKEA

Vishay DaleIn Stock: 22891CRCW080542R2FKEA Datasheet

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ERJ-6ENF42R2V

Panasonic Electronic ComponentsIn Stock: 37905ERJ-6ENF42R2V Datasheet

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RC0805FR-0742R2L

YAGEOIn Stock: 57176RC0805FR-0742R2L Datasheet

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RMCF0805FT42R2

Stackpole Electronics IncIn Stock: 960RMCF0805FT42R2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F42R2CS is determined by strict equivalence across the following parameters:

Mandatory Matching Criteria:

• Resistance value: 42.2 Ohms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W)
• Package: 0805 (2012 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Moisture sensitivity level: 1 (Unlimited)
• RoHS compliance: ROHS3 Compliant
• Termination count: 2

All identified substitute parts meet these criteria. Dimensional variations in seated height (ranging from 0.020" to 0.028") remain within acceptable PCB assembly tolerances for 0805 package format. Additional certifications such as AEC-Q200 automotive qualification present in certain substitutes do not disqualify their use in non-automotive applications.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are classified as Active product status and maintain full ROHS3 compliance and REACH unaffected status, matching the original RCS2012F42R2CS component.

CRCW080542R2FKEA (Vishay Dale): Carries AEC-Q200 automotive qualification. Seated height of 0.020" represents the minimum within the substitute group, providing additional clearance margin in space-constrained PCB layouts.

ERJ-6ENF42R2V (Panasonic Electronic Components): Carries AEC-Q200 automotive qualification. Seated height of 0.028" represents the maximum within the substitute group. Highest inventory availability at 37,839 pieces supports supply chain continuity.

RC0805FR-0742R2L (YAGEO): Features moisture-resistant construction matching the original component's environmental protection profile. Seated height of 0.024" provides mid-range dimensional compatibility. Inventory of 57,159 pieces supports high-volume procurement requirements.

RMCF0805FT42R2 (Stackpole Electronics Inc): Carries AEC-Q200 automotive qualification. Seated height of 0.026" matches the original component specification. Limited inventory of 883 pieces restricts availability for large-scale deployments.

Frequently Asked Questions (FAQ)

Q: Can CRCW080542R2FKEA replace RCS2012F42R2CS in non-automotive applications?

A: Yes. AEC-Q200 automotive qualification does not restrict use in non-automotive circuits. All electrical and mechanical parameters remain equivalent. The automotive certification represents an additional qualification level, not a limitation.

Q: What is the significance of the seated height variation between substitutes?

A: Seated height variations (0.020" to 0.028") fall within standard PCB assembly tolerances for 0805 package components. All substitutes are mechanically compatible with standard 0805 footprints. Height differences do not affect electrical performance or circuit functionality.

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

A: Yes. All identified substitutes are supplied in Tape & Reel (TR) format, matching the original component packaging specification for automated assembly compatibility.

Q: Do substitute parts maintain the same moisture sensitivity rating?

A: Yes. All substitute parts carry MSL 1 (Unlimited) rating, identical to the original RCS2012F42R2CS, indicating no moisture sensitivity restrictions for storage or handling.

Q: Which substitute offers the best inventory availability?

A: RC0805FR-0742R2L (YAGEO) provides the highest inventory level at 57,159 pieces, followed by ERJ-6ENF42R2V (Panasonic) at 37,839 pieces.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All four substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory compliance profile of the original component.