RCS2012F4994CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F4994CS is a 4.99 MOhms ±1% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package. This component is classified as Active product status with anti-sulfur and moisture-resistant characteristics. The part is supplied in Tape & Reel packaging with 1122 pieces currently in stock.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit applications without design modification.

Substiute Parts

RCS2012F4994CS

Samsung Electro-MechanicsIn Stock: 1178RCS2012F4994CS Datasheet

Current PartRFQ

CHV0805-FX-4994ELF

Bourns Inc.In Stock: 7615CHV0805-FX-4994ELF Datasheet

SimilarRFQ

CRCW08054M99FKEA

Vishay DaleIn Stock: 9589CRCW08054M99FKEA Datasheet

SimilarRFQ

RC0805FR-074M99L

YAGEOIn Stock: 52082RC0805FR-074M99L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F4994CS is determined by strict alignment of the following parameters:

Critical Matching Parameters:

• Resistance value: 4.99 MOhms
• 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
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

All identified substitute parts meet these electrical and mechanical specifications. Variations in secondary features (such as anti-sulfur versus high-voltage characteristics, or automotive AEC-Q200 qualification) do not affect substitution eligibility when core parameters are identical.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are Active status components with ROHS3 compliance and MSL Level 1 rating, matching the original RCS2012F4994CS specification.

CHV0805-FX-4994ELF (Bourns Inc.): This substitute incorporates high-voltage thick film construction. It maintains identical electrical parameters and package dimensions. Seated height is 0.024" (0.60mm), which is lower than the original part's 0.026" (0.66mm). This component is suitable for applications requiring high-voltage performance characteristics.

CRCW08054M99FKEA (Vishay Dale): This substitute includes automotive AEC-Q200 qualification. All electrical specifications and package dimensions align with the original part. Seated height is 0.020" (0.50mm), the lowest among all listed substitutes. This component is appropriate for automotive and high-reliability applications.

RC0805FR-074M99L (YAGEO): This substitute features moisture-resistant thick film construction, directly paralleling the anti-sulfur and moisture-resistant characteristics of the original part. Seated height is 0.024" (0.60mm). This component provides functional equivalence with the original Samsung part.

Frequently Asked Questions (FAQ)

Q: Can CHV0805-FX-4994ELF replace RCS2012F4994CS in any application?

A: Yes. The CHV0805-FX-4994ELF meets all critical electrical parameters (4.99 MOhms ±1%, 0.125W, ±100ppm/°C, -55°C ~ 155°C) and package specifications (0805, 2.00mm x 1.25mm). The high-voltage feature is an additional capability that does not prevent substitution.

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

A: Seated height variations (0.020" to 0.026") are within typical thick film chip resistor manufacturing tolerances for the 0805 package. These differences do not affect electrical performance or PCB assembly compatibility when using standard pick-and-place equipment and reflow soldering processes.

Q: Is CRCW08054M99FKEA suitable for non-automotive applications?

A: Yes. AEC-Q200 qualification indicates automotive-grade reliability and testing. Components meeting automotive standards are suitable for general industrial and commercial applications. The automotive qualification does not restrict use in other application categories.

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

A: Yes. All listed substitute parts are supplied in Tape & Reel (TR) packaging, matching the original RCS2012F4994CS packaging format.

Q: Do the substitute parts have identical moisture sensitivity levels?

A: Yes. All substitute parts are rated MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions. Storage and handling requirements are equivalent to the original part.

Q: Can these substitutes be used interchangeably on the same PCB assembly?

A: Yes. All substitute parts share identical electrical specifications, package dimensions (0805 / 2012 Metric), and termination count (2). They are mechanically and electrically interchangeable for PCB assembly purposes.