RCS2012F4423CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F4423CS is a 442 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 with anti-sulfur and moisture-resistant characteristics. The part is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1), suitable for general industrial and consumer applications requiring stable resistance values across the -55°C to 155°C operating temperature range. Equivalent substitute parts are necessary for supply chain continuity, design flexibility, and sourcing optimization when the primary part becomes unavailable or when specific application requirements necessitate alternative manufacturer specifications.

Substiute Parts

RCS2012F4423CS

Samsung Electro-MechanicsIn Stock: 1043RCS2012F4423CS Datasheet

Current PartRFQ

CRCW0805442KFKEA

Vishay DaleIn Stock: 30613CRCW0805442KFKEA Datasheet

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ERJ-6ENF4423V

Panasonic Electronic ComponentsIn Stock: 123150ERJ-6ENF4423V Datasheet

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RC0805FR-07442KL

YAGEOIn Stock: 104313RC0805FR-07442KL Datasheet

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RMCF0805FT442K

Stackpole Electronics IncIn Stock: 11034RMCF0805FT442K Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F4423CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 442 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.125W / 1/8W (exact match required)
• Package: 0805 (2012 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

Acceptable Variation Parameters:

• Manufacturer identity (different manufacturers permitted)
• Height-seated maximum (minor dimensional variation acceptable within 0805 package specification)
• Specific feature enhancements (e.g., automotive AEC-Q200 qualification, anti-sulfur coating) do not disqualify substitution

All four substitute parts listed meet these mandatory equivalence criteria and are therefore direct functional replacements for the RCS2012F4423CS in standard applications.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are functionally equivalent to the RCS2012F4423CS based on electrical and mechanical parameter matching. Selection among these alternatives should be based on the following engineering considerations:

General Industrial Applications: The YAGEO RC0805FR-07442KL offers direct functional equivalence with moisture-resistant characteristics matching the primary part specification. This part maintains the lowest height profile (0.024" / 0.60mm) among all options, beneficial for space-constrained PCB layouts.

Automotive Applications: The CRCW0805442KFKEA (Vishay Dale), ERJ-6ENF4423V (Panasonic), and RMCF0805FT442K (Stackpole) all carry AEC-Q200 automotive qualification. These parts are suitable for automotive-grade circuit designs requiring enhanced reliability documentation and traceability. The Vishay Dale CRCW0805442KFKEA provides the most compact height (0.020" / 0.50mm).

Supply Chain Optimization: All substitute parts maintain Active product status with ROHS3 compliance and MSL 1 rating. Inventory availability varies: Panasonic ERJ-6ENF4423V (123,051 pcs), YAGEO RC0805FR-07442KL (104,242 pcs), Vishay Dale CRCW0805442KFKEA (30,595 pcs), and Stackpole RMCF0805FT442K (10,984 pcs). Selection based on supply availability and lead time requirements is appropriate.

Feature-Specific Requirements: The Samsung RCS2012F4423CS includes anti-sulfur coating in addition to moisture resistance. The YAGEO RC0805FR-07442KL provides equivalent moisture-resistant characteristics without automotive qualification, making it suitable for non-automotive applications requiring the same environmental protection level.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RCS2012F4423CS with any of these four parts without circuit redesign?

A: Yes. All four substitute parts match the mandatory electrical parameters (442 kOhms, ±1% tolerance, 0.125W power rating, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range) and physical package (0805 / 2012 Metric). No circuit redesign is required for direct substitution in standard applications.

Q: What is the significance of the height-seated maximum variation among these parts?

A: Height variation (0.020" to 0.028") remains within the 0805 package specification tolerance. For most applications, this variation is not critical. However, in space-constrained designs with minimal clearance above components, the YAGEO RC0805FR-07442KL (0.024" / 0.60mm) or Vishay Dale CRCW0805442KFKEA (0.020" / 0.50mm) may be preferred. Verify PCB layout clearance requirements before final selection.

Q: Are the automotive AEC-Q200 qualified parts suitable for non-automotive applications?

A: Yes. AEC-Q200 qualification represents an enhanced reliability standard and does not restrict use in non-automotive applications. Parts with AEC-Q200 qualification (Vishay Dale CRCW0805442KFKEA, Panasonic ERJ-6ENF4423V, Stackpole RMCF0805FT442K) are fully compatible with general industrial and consumer circuit designs.

Q: What is the difference between anti-sulfur coating and moisture resistance?

A: Both features provide environmental protection but address different degradation mechanisms. Anti-sulfur coating protects against sulfur-containing atmospheric contaminants that can corrode component terminations. Moisture resistance protects against water absorption and humidity-induced electrical property changes. The YAGEO RC0805FR-07442KL provides moisture resistance equivalent to the primary part's combined anti-sulfur and moisture-resistant specification for most standard applications.

Q: Can I mix these substitute parts within the same production batch?

A: Yes. All parts meet identical electrical specifications and package requirements. Mixing different manufacturers within a single PCB assembly is acceptable from an electrical and mechanical standpoint. However, verify that your quality assurance and traceability procedures accommodate multiple manufacturer sources if required by your application standards.

Q: What does MSL 1 (Unlimited) mean for handling and storage?

A: MSL 1 rating indicates the component has unlimited shelf life and requires no special moisture-controlled storage conditions. These parts do not require dry-pack packaging or baking before reflow soldering. Standard warehouse storage conditions are acceptable for all five parts listed.

Q: Are all these parts ROHS3 compliant?

A: Yes. All five parts (RCS2012F4423CS, CRCW0805442KFKEA, ERJ-6ENF4423V, RC0805FR-07442KL, RMCF0805FT442K) are ROHS3 compliant and suitable for applications requiring RoHS directive adherence.