RCS2012F185CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F185CS is a 1.8 MOhms ±1% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status and is supplied in Tape & Reel (TR) packaging. The RCS2012F185CS features anti-sulfur and moisture-resistant construction, making it suitable for general industrial and consumer applications requiring stable high-impedance resistance values across extended temperature ranges.

Equivalent and substitute parts are identified when components share identical electrical specifications (resistance value, tolerance, power rating, temperature coefficient, operating temperature range) and mechanical compatibility (package type, footprint, termination count) while potentially differing in packaging format, manufacturer, or specialized features such as automotive qualification or high-voltage capability.

Substiute Parts

RCS2012F185CS

Samsung Electro-MechanicsIn Stock: 735RCS2012F185CS Datasheet

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RC2012F185CS

Samsung Electro-MechanicsIn Stock: 1278RC2012F185CS Datasheet

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CHV0805-FX-1804ELF

Bourns Inc.In Stock: 735CHV0805-FX-1804ELF Datasheet

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CRCW08051M80FKEA

Vishay DaleIn Stock: 10168CRCW08051M80FKEA Datasheet

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ERJ-6ENF1804V

Panasonic Electronic ComponentsIn Stock: 50901ERJ-6ENF1804V Datasheet

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KTR10EZPF1804

Rohm SemiconductorIn Stock: 10612KTR10EZPF1804 Datasheet

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RC0805FR-071M8L

YAGEOIn Stock: 59265RC0805FR-071M8L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F185CS is determined by strict equivalence across the following mandatory parameters:

Electrical Equivalence Requirements:

• Resistance value: 1.8 MOhms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• Composition: Thick Film

Mechanical Equivalence Requirements:

• Package / Case: 0805 (2012 Metric)
• Number of terminations: 2
• Footprint compatibility: 0.079" L x 0.049" W (2.00mm x 1.25mm)

Compliance Requirements:

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts meet these mandatory criteria. Variations in packaging format (Tape & Reel versus Cut Tape), manufacturer-specific features (anti-sulfur coating, high-voltage capability, automotive AEC-Q200 qualification), and minor dimensional tolerances (height seated maximum) do not affect functional substitutability within the specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are Active product status components with ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage conditions.

For general industrial applications without automotive requirements: RC2012F185CS (Samsung Electro-Mechanics, Cut Tape format) or RC0805FR-071M8L (YAGEO) provide direct functional equivalence with established supply availability.

For automotive applications requiring AEC-Q200 qualification: CRCW08051M80FKEA (Vishay Dale), ERJ-6ENF1804V (Panasonic Electronic Components), or KTR10EZPF1804 (Rohm Semiconductor) are qualified alternatives. These components meet automotive reliability standards while maintaining identical electrical specifications.

For applications requiring high-voltage performance: CHV0805-FX-1804ELF (Bourns Inc.) or KTR10EZPF1804 (Rohm Semiconductor) incorporate high-voltage thick film construction as a specialized feature.

For packaging format requirements: Tape & Reel (TR) format is available across all substitute options. Cut Tape (CT) format is available only as RC2012F185CS from Samsung Electro-Mechanics.

Selection among equivalent parts should be based on supply chain availability, packaging requirements, and application-specific certifications (automotive AEC-Q200 or high-voltage capability) rather than electrical performance, as all listed components are functionally interchangeable within the specified parameters.

Frequently Asked Questions (FAQ)

Q: Can RC2012F185CS be directly replaced with RCS2012F185CS?

A: Yes. Both components share identical electrical specifications (1.8 MOhms ±1%, 0.125W, ±100ppm/°C, -55°C to 155°C operating range) and mechanical compatibility (0805 package, 2 terminations). The primary difference is packaging format: RCS2012F185CS is supplied in Tape & Reel (TR) format, while RC2012F185CS is supplied in Cut Tape (CT) format. Both are manufactured by Samsung Electro-Mechanics and are ROHS3 compliant with MSL Level 1.

Q: Are automotive-qualified parts (CRCW08051M80FKEA, ERJ-6ENF1804V, KTR10EZPF1804) suitable for non-automotive applications?

A: Yes. Automotive AEC-Q200 qualification represents an additional reliability standard and does not restrict use in non-automotive applications. These components meet or exceed the electrical and mechanical requirements of the RCS2012F185CS and are fully compatible for general industrial use.

Q: What is the significance of the height-seated maximum dimension variation (0.50mm to 0.70mm)?

A: All substitute parts remain within standard 0805 (2012 Metric) package specifications and are mechanically compatible with standard PCB footprints designed for 0805 components. Height variations within this range do not affect assembly, soldering, or functional performance. Component selection based on height should only be considered for applications with specific spatial constraints (such as low-profile assemblies).

Q: Can CHV0805-FX-1804ELF or KTR10EZPF1804 be used in place of RCS2012F185CS without circuit redesign?

A: Yes. Both components are direct functional equivalents with identical electrical specifications and 0805 package compatibility. The high-voltage feature present in these parts represents enhanced capability and does not require circuit modification. These components are suitable for any application designed for the RCS2012F185CS.

Q: What is the difference between "anti-sulfur" and "moisture resistant" features listed in the specifications?

A: Anti-sulfur coating (present in RCS2012F185CS) provides protection against sulfur-containing atmospheric contaminants and corrosive environments. Moisture-resistant construction (present in RC2012F185CS and RC0805FR-071M8L) provides protection against humidity and moisture ingress. Both features contribute to long-term reliability; selection between them should be based on the specific environmental conditions of the application. All listed substitute parts maintain MSL Level 1 (Unlimited) moisture sensitivity, indicating compatibility with standard storage and handling conditions.

Q: Are there inventory or lead-time considerations when selecting among substitute parts?

A: Inventory levels vary significantly among manufacturers. ERJ-6ENF1804V (Panasonic) shows the highest inventory (50,795 pcs), while RC0805FR-071M8L (YAGEO) shows 59,253 pcs. These high-volume parts typically offer shorter lead times. Selection should consider both immediate availability and long-term supply chain stability based on application requirements.