RCS2012F2493CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F2493CS is a 249 kOhms ±1% 0.125W (1/8W) 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. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct circuit board compatibility and functional interchangeability.

Substiute Parts

RCS2012F2493CS

Samsung Electro-MechanicsIn Stock: 1007RCS2012F2493CS Datasheet

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CRCW0805249KFKEA

Vishay DaleIn Stock: 31370CRCW0805249KFKEA Datasheet

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CRCW0805249KFKEAHP

Vishay DaleIn Stock: 7203CRCW0805249KFKEAHP Datasheet

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CRCW0805249KFKTA

Vishay DaleIn Stock: 9149CRCW0805249KFKTA Datasheet

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ERJ-6ENF2493V

Panasonic Electronic ComponentsIn Stock: 86860ERJ-6ENF2493V Datasheet

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RC0805FR-07249KL

YAGEOIn Stock: 428955RC0805FR-07249KL Datasheet

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RCS0805249KFKEA

Vishay DaleIn Stock: 2526RCS0805249KFKEA Datasheet

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RMCF0805FT249K

Stackpole Electronics IncIn Stock: 43561RMCF0805FT249K Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F2493CS are grouped based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Critical Parameters for Substitution:

• Resistance value: 249 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package / Case: 0805 (2012 Metric) (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)
• Composition: Thick Film (exact match required)
• Number of Terminations: 2 (exact match required)

Secondary Parameters Allowing Variation:

• Power Rating: 0.125W (1/8W) primary; 0.5W (1/2W) acceptable for higher power applications
• Manufacturer: Multiple qualified manufacturers
• Packaging format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel®
• Certifications: AEC-Q200 automotive rating available in substitute options

Substitute parts are divided into two categories: direct 1/8W equivalents and higher-rated 1/2W alternatives suitable for applications requiring increased power dissipation capability.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (0.125W / 1/8W Rating):

CRCW0805249KFKEA, ERJ-6ENF2493V, RC0805FR-07249KL, and RMCF0805FT249K are direct functional equivalents to RCS2012F2493CS. All maintain identical electrical specifications (249 kΩ ±1%, ±100ppm/°C, -55°C ~ 155°C operating range) and 0805 package dimensions. These parts are suitable for direct substitution in applications where the original 1/8W power rating is sufficient.

CRCW0805249KFKEA (Vishay Dale) and RMCF0805FT249K (Stackpole Electronics Inc) carry AEC-Q200 automotive qualification. ERJ-6ENF2493V (Panasonic) also carries AEC-Q200 rating and is available in Cut Tape & Digi-Reel® packaging. RC0805FR-07249KL (YAGEO) provides the highest inventory availability (428,913 pcs) and maintains ROHS3 compliance.

Higher Power Alternatives (0.5W / 1/2W Rating):

CRCW0805249KFKEAHP and RCS0805249KFKEA are rated at 0.5W (1/2W) power dissipation while maintaining all other electrical parameters. These parts are suitable for applications requiring increased thermal margin or higher pulse withstanding capability. Both carry AEC-Q200 automotive qualification and ROHS3 compliance.

Compliance Considerations:

CRCW0805249KFKTA (Vishay Dale) is RoHS non-compliant and REACH Affected. This part is not recommended for new designs requiring ROHS3 compliance.

All other substitute parts maintain ROHS3 compliance and REACH Unaffected status, matching the original RCS2012F2493CS specifications.

Frequently Asked Questions (FAQ)

Q: Can CRCW0805249KFKEAHP (0.5W) be used as a direct replacement for RCS2012F2493CS (0.125W)?

A: Yes. The 0.5W rated part is electrically and mechanically compatible. The higher power rating provides additional thermal margin and does not affect circuit operation. The component will occupy the same PCB footprint and maintain identical electrical performance at the 0.125W operating level.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging?

A: Both packaging formats contain identical components. Tape & Reel is supplied on continuous carrier tape suitable for automated pick-and-place equipment. Cut Tape & Digi-Reel® is supplied in shorter tape segments on reels, typically for lower-volume applications or manual assembly. Component specifications and performance are identical regardless of packaging format.

Q: Why is CRCW0805249KFKTA not recommended despite being a direct electrical equivalent?

A: CRCW0805249KFKTA is RoHS non-compliant and REACH Affected. If your application or supply chain requires ROHS3 compliance, this part is not suitable. All other substitute options maintain ROHS3 compliance.

Q: Are all substitute parts qualified to AEC-Q200 automotive standard?

A: No. CRCW0805249KFKEA, CRCW0805249KFKEAHP, ERJ-6ENF2493V, CRCW0805249KFKTA, RCS0805249KFKEA, and RMCF0805FT249K carry AEC-Q200 qualification. RC0805FR-07249KL does not list AEC-Q200 rating but is suitable for industrial and commercial applications. The original RCS2012F2493CS does not carry AEC-Q200 rating.

Q: What is the maximum height difference among substitute parts?

A: Maximum seated heights range from 0.020" (0.50mm) for Vishay Dale CRCW series to 0.028" (0.70mm) for Panasonic ERJ-6ENF2493V. All heights remain within typical PCB assembly tolerances and do not affect component placement or circuit board clearance for standard 0805 applications.

Q: Can I mix different manufacturers' parts in the same circuit board assembly?

A: Yes. All substitute parts meet identical electrical specifications (249 kΩ ±1%, ±100ppm/°C, -55°C ~ 155°C) and mechanical dimensions (0805 package). Mixing manufacturers is acceptable from an engineering standpoint, though supply chain and procurement practices may impose additional requirements.