RCS2012F180CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F180CS is an 18 Ohm ±1% 0.125W (1/8W) thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status with anti-sulfur and moisture-resistant characteristics. The part is supplied in Tape & Reel (TR) packaging and complies with ROHS3 and REACH requirements. Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating) and mechanical compatibility (package size, termination count, operating temperature range) to ensure direct circuit board substitution capability.

Substiute Parts

RCS2012F180CS

Samsung Electro-MechanicsIn Stock: 973RCS2012F180CS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F180CS are grouped into two categories based on power rating compatibility:

Category A: Direct Equivalents (1/8W Power Rating) These parts maintain identical electrical and mechanical specifications to the main part: 18 Ohms resistance, ±1% tolerance, 0.125W power rating, 0805 package, ±100ppm/°C temperature coefficient, and -55°C ~ 155°C operating temperature range. All parts in this category feature 2 terminations and MSL Level 1 rating. Substitution within this category is unrestricted for applications requiring 1/8W power dissipation.

Category B: Higher Power Rating Alternatives (1/2W Power Rating) These parts share the same resistance value, tolerance, package size, temperature coefficient, and operating temperature range as the main part, but feature increased power rating of 0.5W (1/2W). These parts are suitable only for applications where higher power dissipation capability is required or beneficial. Substitution to higher power ratings does not affect circuit functionality but may alter thermal characteristics and board layout considerations.

Key parameters determining substitution eligibility:

• Resistance value: 18 Ohms (mandatory match)
• Tolerance: ±1% (mandatory match)
• Package: 0805 (2012 Metric) (mandatory match)
• Temperature coefficient: ±100ppm/°C (mandatory match)
• Operating temperature: -55°C ~ 155°C (mandatory match)
• Terminations: 2 (mandatory match)
• Power rating: 0.125W minimum (application-dependent)

Parameter Comparison

Engineering Selection Recommendations

For Direct 1/8W Substitution (No Power Rating Change):

AC0805FR-0718RL (YAGEO) and CRCW080518R0FKEA (Vishay Dale) are direct electrical and mechanical equivalents to RCS2012F180CS. Both parts maintain identical resistance, tolerance, power rating, package dimensions, and operating temperature specifications. AC0805FR-0718RL and CRCW080518R0FKEA carry Automotive AEC-Q200 certification, providing enhanced reliability qualification for automotive applications. RC0805FR-0718RL (YAGEO) is functionally equivalent without automotive certification. ERJ-6ENF18R0V (Panasonic) is also a direct equivalent with AEC-Q200 certification.

For Higher Power Dissipation Requirements (1/2W Rating):

CRCW080518R0FKEAHP (Vishay Dale), ERJ-UP6F18R0V (Panasonic), and RCS080518R0FKEA (Vishay Dale) provide 0.5W power rating while maintaining all other electrical and mechanical parameters. These parts are suitable for applications requiring increased power handling capability. ERJ-UP6F18R0V includes anti-sulfur feature matching the original part specification. All three parts carry AEC-Q200 automotive certification.

Compliance and Regulatory Status:

All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory status of RCS2012F180CS. All parts maintain MSL Level 1 (Unlimited) moisture sensitivity rating. Product status for all parts is Active, ensuring continued availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can I substitute RCS2012F180CS with a higher power rating part such as CRCW080518R0FKEAHP?

A: Yes. Higher power rating parts (0.5W) are electrically and mechanically compatible with the original 0.125W specification. The higher power rating does not affect circuit functionality. However, verify that board layout and thermal management accommodate the potentially different physical dimensions and heat dissipation characteristics.

Q: What is the difference between AC0805FR-0718RL and RC0805FR-0718RL?

A: Both are YAGEO 18 Ohm ±1% 0.125W 0805 resistors with identical electrical specifications. AC0805FR-0718RL includes Automotive AEC-Q200 certification and is supplied in Tape & Reel packaging. RC0805FR-0718RL lacks automotive certification and is supplied in Cut Tape & Digi-Reel® packaging. Selection depends on application requirements and packaging preferences.

Q: Are all substitute parts available in the same packaging format as RCS2012F180CS?

A: RCS2012F180CS is supplied in Tape & Reel (TR) packaging. Most substitute parts are also available in Tape & Reel format (AC0805FR-0718RL, CRCW080518R0FKEA, ERJ-6ENF18R0V, ERJ-UP6F18R0V, RCS080518R0FKEA). RC0805FR-0718RL and CRCW080518R0FKEAHP are supplied in Cut Tape (CT) & Digi-Reel® format. Verify packaging requirements for your procurement and assembly processes.

Q: Do all substitute parts meet the same temperature coefficient specification?

A: Yes. All substitute parts listed maintain ±100ppm/°C temperature coefficient and -55°C ~ 155°C operating temperature range, matching RCS2012F180CS specifications exactly.

Q: Which substitute parts include anti-sulfur protection like the original RCS2012F180CS?

A: RCS2012F180CS and ERJ-UP6F18R0V both feature anti-sulfur protection. Other substitute parts do not list this feature in their specifications. If anti-sulfur protection is a circuit requirement, ERJ-UP6F18R0V is the recommended substitute, noting that it provides 0.5W power rating.

Q: What is the significance of AEC-Q200 certification on substitute parts?

A: AEC-Q200 is an automotive industry qualification standard for passive components. Parts carrying this certification (AC0805FR-0718RL, CRCW080518R0FKEA, CRCW080518R0FKEAHP, ERJ-6ENF18R0V, ERJ-UP6F18R0V, RCS080518R0FKEA) have undergone enhanced reliability testing and are suitable for automotive applications. RCS2012F180CS does not carry this certification; substitution with AEC-Q200 parts upgrades reliability qualification.

Q: Can I use CRCW080518R0FKEA as a direct replacement without circuit redesign?

A: Yes. CRCW080518R0FKEA is a direct electrical and mechanical equivalent with identical resistance, tolerance, power rating, package size, and operating temperature range. No circuit redesign is required. The part's slightly lower maximum seated height (0.50mm vs. 0.66mm) may provide minor board layout benefits.