RCS2012F46R4CS Equivalent & Substitute Parts

Part Overview

The RCS2012F46R4CS is a 46.4 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 designed for general-purpose applications requiring precision resistive elements with anti-sulfur and moisture-resistant properties. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

RCS2012F46R4CS

Samsung Electro-MechanicsIn Stock: 1018RCS2012F46R4CS Datasheet

Current PartRFQ

CRCW080546R4FKEA

Vishay DaleIn Stock: 19712CRCW080546R4FKEA Datasheet

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ERJ-6ENF46R4V

Panasonic Electronic ComponentsIn Stock: 32508ERJ-6ENF46R4V Datasheet

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RC0805FR-0746R4L

YAGEOIn Stock: 9040RC0805FR-0746R4L Datasheet

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RMCF0805FT46R4

Stackpole Electronics IncIn Stock: 1027RMCF0805FT46R4 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F46R4CS is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 46.4 Ohms (exact match)
• Tolerance: ±1% (exact match)
• Power rating: 0.125W / 1/8W (exact match)
• Temperature coefficient: ±100ppm/°C (exact match)
• Operating temperature range: -55°C ~ 155°C (exact match)

Mechanical Equivalence Requirements:

• Package format: 0805 (2012 Metric) (exact match)
• Composition: Thick Film (exact match)
• Number of terminations: 2 (exact match)

Compliance Requirements:

• RoHS3 Compliant (mandatory)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match)
• REACH Status: REACH Unaffected (exact match)

All four identified substitute parts meet these criteria. Additional features such as Automotive AEC-Q200 certification or anti-sulfur properties represent enhanced capabilities that do not disqualify a part from substitution but indicate expanded application scope.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are functionally equivalent to the RCS2012F46R4CS based on electrical and mechanical parameter alignment. Selection among these alternatives is determined by application-specific requirements and supply chain considerations:

CRCW080546R4FKEA (Vishay Dale): Automotive AEC-Q200 certified. Lowest seated height at 0.020" (0.50mm). Suitable for automotive applications and space-constrained PCB layouts. Highest inventory availability at 19,607 pieces.

ERJ-6ENF46R4V (Panasonic Electronic Components): Automotive AEC-Q200 certified. Highest seated height at 0.028" (0.70mm). Suitable for automotive applications. Highest inventory availability at 32,434 pieces.

RC0805FR-0746R4L (YAGEO): Moisture-resistant feature. Mid-range seated height at 0.024" (0.60mm). Suitable for general-purpose applications with moisture exposure concerns. Moderate inventory availability at 9,006 pieces.

RMCF0805FT46R4 (Stackpole Electronics Inc): Automotive AEC-Q200 certified. Seated height at 0.026" (0.65mm), matching the original RCS2012F46R4CS. Suitable for automotive applications. Limited inventory availability at 937 pieces.

All parts maintain ROHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) rating, ensuring regulatory and environmental compatibility with the original component.

Frequently Asked Questions (FAQ)

Q: Can CRCW080546R4FKEA replace RCS2012F46R4CS in non-automotive applications?

A: Yes. The CRCW080546R4FKEA meets all electrical and mechanical specifications required for direct substitution. Automotive AEC-Q200 certification indicates enhanced reliability but does not restrict use in non-automotive circuits.

Q: What is the significance of seated height differences among substitute parts?

A: Seated height variations (0.020" to 0.028") reflect manufacturing tolerances and design differences between manufacturers. All values remain within acceptable limits for 0805 package format. Height differences are relevant only in applications with strict vertical clearance constraints on PCB assemblies.

Q: Are all substitute parts suitable for high-temperature applications?

A: Yes. All substitute parts and the original RCS2012F46R4CS operate across the identical temperature range of -55°C ~ 155°C with ±100ppm/°C temperature coefficient, ensuring equivalent performance in thermal cycling environments.

Q: Why do some substitute parts carry AEC-Q200 certification while others do not?

A: AEC-Q200 certification indicates qualification for automotive applications under specific stress testing protocols. Parts without this certification are not disqualified from automotive use but have not undergone automotive-specific qualification testing. Selection depends on end-application requirements and customer specifications.

Q: Is the anti-sulfur feature of RCS2012F46R4CS critical for substitution?

A: Anti-sulfur and moisture-resistant features represent enhanced environmental protection. Substitute parts without explicit anti-sulfur designation (CRCW080546R4FKEA, ERJ-6ENF46R4V, RMCF0805FT46R4) remain functionally equivalent for standard applications. Applications requiring specific environmental protection should specify feature requirements during component selection.

Q: Can substitute parts be mixed within a single PCB assembly?

A: Yes. All substitute parts meet identical electrical specifications and package dimensions, enabling mixed-source procurement within a single assembly. Inventory management and supply chain optimization may justify using multiple qualified sources.

Q: What inventory considerations apply to substitute part selection?

A: ERJ-6ENF46R4V offers highest availability (32,434 pieces), followed by CRCW080546R4FKEA (19,607 pieces). RMCF0805FT46R4 has limited availability (937 pieces). Inventory levels should be evaluated against production volume and lead-time requirements.