RCS2012F122CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F122CS is a 1.2 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 properties. The part is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1) and operates across -55°C to 155°C temperature range. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and application-specific requirements such as automotive qualification or enhanced power ratings.

Substiute Parts

RCS2012F122CS

Samsung Electro-MechanicsIn Stock: 765RCS2012F122CS Datasheet

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AC0805FR-071K2L

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CRCW08051K20FKEA

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CRCW08051K20FKEAHP

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ERJ-6ENF1201V

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ERJ-UP6F1201V

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RC0805FR-071K2L

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RCS08051K20FKEA

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F122CS is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

• Resistance value: 1.2 kOhms
• Tolerance: ±1%
• Package / Case: 0805 (2012 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Terminations: 2
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Secondary Consideration (Power Rating): Substitute parts are grouped into two categories based on power rating:

• Direct Equivalents (0.125W / 1/8W): AC0805FR-071K2L, ERJ-6ENF1201V, RC0805FR-071K2L
• Higher Power Rating (0.5W / 1/2W or 0.4W / 2/5W): CRCW08051K20FKEAHP, ERJ-UP6F1201V, RCS08051K20FKEA, ESR10EZPF1201, CRCW08051K20FKEA

Parts with higher power ratings are electrically compatible and physically interchangeable in the 0805 package footprint. Selection between direct equivalents and higher-rated alternatives depends on circuit design requirements and thermal management considerations.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Identical Power Rating): AC0805FR-071K2L, ERJ-6ENF1201V, and RC0805FR-071K2L are direct functional equivalents to RCS2012F122CS. All three maintain 0.125W power rating, ±1% tolerance, and identical electrical specifications. AC0805FR-071K2L and RC0805FR-071K2L are available in Cut Tape & Digi-Reel packaging, while ERJ-6ENF1201V is also available in this format. Selection among these three is based on packaging preference and supplier availability.

Higher Power Rating Substitutes: CRCW08051K20FKEA, CRCW08051K20FKEAHP, ERJ-UP6F1201V, RCS08051K20FKEA, and ESR10EZPF1201 provide increased power dissipation capability (0.4W to 0.5W) while maintaining identical resistance, tolerance, and temperature specifications. These parts are physically compatible with 0805 footprints and are suitable for applications requiring enhanced thermal performance or pulse withstanding capability.

Automotive Applications: AC0805FR-071K2L, CRCW08051K20FKEA, CRCW08051K20FKEAHP, ERJ-6ENF1201V, ERJ-UP6F1201V, ESR10EZPF1201, and RCS08051K20FKEA carry AEC-Q200 automotive qualification. These parts are appropriate for automotive-grade circuit designs.

Compliance Status: All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the environmental and regulatory requirements of the primary part RCS2012F122CS.

Frequently Asked Questions (FAQ)

Q: Can I use a 0.5W rated resistor in place of the 0.125W RCS2012F122CS?

A: Yes. Parts such as CRCW08051K20FKEA, CRCW08051K20FKEAHP, ERJ-UP6F1201V, and RCS08051K20FKEA are physically and electrically compatible. The higher power rating provides additional thermal margin and does not degrade circuit performance. The 0805 package footprint remains identical.

Q: What is the difference between AC0805FR-071K2L and RC0805FR-071K2L?

A: Both are YAGEO 1.2 kOhms ±1% 0.125W 0805 resistors with identical electrical specifications. AC0805FR-071K2L includes automotive AEC-Q200 qualification, while RC0805FR-071K2L does not. Selection depends on application requirements.

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

A: No. ERJ-6ENF1201V, AC0805FR-071K2L, RC0805FR-071K2L, and CRCW08051K20FKEAHP are available in Cut Tape & Digi-Reel packaging. CRCW08051K20FKEA, ERJ-UP6F1201V, RCS08051K20FKEA, and ESR10EZPF1201 are available in Tape & Reel. Packaging selection affects procurement and assembly processes.

Q: Do all substitute parts meet ROHS3 compliance?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) rating, matching the environmental compliance of RCS2012F122CS.

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

A: Maximum seated height ranges from 0.50mm (Vishay Dale CRCW series) to 0.70mm (Panasonic ERJ series). The RCS2012F122CS has a maximum height of 0.66mm. Height variations are within typical PCB assembly tolerances for 0805 components.

Q: Which substitute parts have anti-sulfur properties?

A: RCS2012F122CS and ERJ-UP6F1201V both feature anti-sulfur properties. Other substitutes do not list this specification in provided data.

Q: Can I substitute RCS2012F122CS with ESR10EZPF1201?

A: Yes. ESR10EZPF1201 is a Rohm Semiconductor 1.2 kOhms ±1% thick film resistor in 0805 package with 0.4W power rating. It is ROHS3 compliant, AEC-Q200 qualified, and pulse-withstanding rated. Electrical and thermal specifications are compatible.