Equivalent & Substitute Parts for RCS2012F5491CS

Part Overview

The RCS2012F5491CS is a 5.49 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package format. This component is rated for 0.125W (1/8W) power dissipation and operates across the temperature range of -55°C to 155°C. The part features anti-sulfur and moisture-resistant construction with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). The RCS2012F5491CS maintains active product status with 1107 units currently in stock. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct interchangeability in circuit applications.

Substiute Parts

RCS2012F5491CS

Samsung Electro-MechanicsIn Stock: 1180RCS2012F5491CS Datasheet

Current PartRFQ

CRCW08055K49FKEA

Vishay DaleIn Stock: 1261CRCW08055K49FKEA Datasheet

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ERJ-6ENF5491V

Panasonic Electronic ComponentsIn Stock: 65875ERJ-6ENF5491V Datasheet

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RC0805FR-075K49L

YAGEOIn Stock: 91566RC0805FR-075K49L Datasheet

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RMCF0805FT5K49

Stackpole Electronics IncIn Stock: 18970RMCF0805FT5K49 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RCS2012F5491CS is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Resistance value of 5.49 kOhms, tolerance of ±1%, and power rating of 0.125W (1/8W) must be identical across all substitute parts.

Package Compatibility: All substitute parts must use the 0805 (2012 Metric) package format with identical mechanical dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm).

Environmental Ratings: Operating temperature range of -55°C to 155°C and temperature coefficient of ±100ppm/°C must be maintained.

Compliance Standards: RoHS3 compliance and MSL 1 rating are required for all substitutes.

Composition: Thick film construction is the standard for this resistor category.

The identified substitute parts meet all these criteria and are therefore electrically and mechanically interchangeable with the RCS2012F5491CS in standard circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status and full RoHS3 compliance, ensuring long-term availability and regulatory conformance. The CRCW08055K49FKEA (Vishay Dale), ERJ-6ENF5491V (Panasonic), and RMCF0805FT5K49 (Stackpole) carry automotive AEC-Q200 qualification, which provides additional reliability assurance for applications requiring automotive-grade components. The RC0805FR-075K49L (YAGEO) offers moisture-resistant construction comparable to the original Samsung part. All substitute parts are available in high inventory quantities, supporting production continuity. Selection among these substitutes should be based on packaging format preference (Tape & Reel versus Cut Tape & Digi-Reel) and any specific automotive qualification requirements of the end application.

Frequently Asked Questions (FAQ)

Q: Can CRCW08055K49FKEA replace RCS2012F5491CS directly?

A: Yes. Both parts share identical electrical specifications (5.49 kOhms ±1%, 0.125W), package format (0805), temperature range (-55°C to 155°C), and compliance ratings (RoHS3, MSL 1). The CRCW08055K49FKEA includes automotive AEC-Q200 qualification, which is a superset of standard industrial requirements.

Q: What is the difference between the substitute parts?

A: All substitute parts meet the core electrical and mechanical requirements for interchangeability. Differences exist in manufacturing features: CRCW08055K49FKEA, ERJ-6ENF5491V, and RMCF0805FT5K49 include automotive AEC-Q200 qualification; RC0805FR-075K49L emphasizes moisture-resistant construction. Height variations range from 0.020" to 0.028", which are within acceptable PCB assembly tolerances for 0805 packages.

Q: Are there packaging format differences among substitutes?

A: Yes. RCS2012F5491CS, CRCW08055K49FKEA, ERJ-6ENF5491V, and RMCF0805FT5K49 are supplied in Tape & Reel (TR) format. RC0805FR-075K49L is supplied in Cut Tape (CT) & Digi-Reel format. Selection depends on assembly equipment compatibility and order quantity requirements.

Q: Do all substitutes meet the same temperature coefficient specification?

A: Yes. All substitute parts maintain a temperature coefficient of ±100ppm/°C, identical to the RCS2012F5491CS.

Q: Which substitute has the highest inventory availability?

A: ERJ-6ENF5491V (Panasonic) has the highest inventory with 65,777 units in stock, followed by RC0805FR-075K49L (YAGEO) with 91,552 units. Both provide excellent supply security for high-volume applications.

Q: Is automotive AEC-Q200 qualification necessary for my application?

A: AEC-Q200 qualification is required only for automotive applications or systems requiring automotive-grade reliability standards. For general industrial and consumer applications, all substitute parts without this qualification are fully suitable.