RCS2012F680CS Equivalent & Substitute Parts

Part Overview

The RCS2012F680CS is a 68 Ohm ±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 and suitable for general industrial and consumer applications requiring standard precision resistors. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and packaging compatibility to ensure direct board-level interchangeability.

Key Parameters

Parameter	Value
Resistance	68 Ohms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Size / Dimension	0.079" L x 0.049" W (2.00mm x 1.25mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F680CS are grouped into two categories based on electrical and mechanical compatibility:

Category 1: Direct Equivalents (1/8W Power Rating) Parts with identical electrical specifications (68 Ohms, ±1%, 0.125W) and 0805 package dimensions. These parts are pin-for-pin compatible and require no circuit modifications. Substitutes in this category include RC2012F680CS, AC0805FR-0768RL, CRCW080568R0FKEA, ERJ-6ENF68R0V, RC0805FR-0768RL, and RMCF0805FT68R0.

Category 2: Higher Power Rating Variants (1/2W Power Rating) Parts with identical resistance and tolerance (68 Ohms, ±1%) but increased power rating (0.5W instead of 0.125W) in the same 0805 package. These parts are mechanically compatible but provide enhanced power dissipation capability. Substitutes in this category include CRCW080568R0FKEAHP, ERJ-UP6F68R0V, and RCS080568R0FKEA.

Key Parameters Determining Substitution:

Resistance value: 68 Ohms (exact match required)
Tolerance: ±1% (exact match required)
Package: 0805 (2012 Metric) (exact match required)
Temperature Coefficient: ±100ppm/°C (exact match required)
Operating Temperature: -55°C ~ 155°C (exact match required)
Composition: Thick Film (exact match required)

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Height Max (mm)	Features	AEC-Q200
RCS2012F680CS	Samsung Electro-Mechanics	68 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.66	Anti-Sulfur, Moisture Resistant	No
RC2012F680CS	Samsung Electro-Mechanics	68 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.65	Moisture Resistant	No
AC0805FR-0768RL	YAGEO	68 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.60	Automotive AEC-Q200, Moisture Resistant	Yes
CRCW080568R0FKEA	Vishay Dale	68 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.50	Automotive AEC-Q200	Yes
CRCW080568R0FKEAHP	Vishay Dale	68 Ω	±1%	0.5	0805	±100ppm/°C	-55 to 155°C	0.50	Automotive AEC-Q200, Pulse Withstanding	Yes
ERJ-6ENF68R0V	Panasonic Electronic Components	68 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.70	Automotive AEC-Q200	Yes
ERJ-UP6F68R0V	Panasonic Electronic Components	68 Ω	±1%	0.5	0805	±100ppm/°C	-55 to 155°C	0.70	Anti-Sulfur, Automotive AEC-Q200, Pulse Withstanding	Yes
RC0805FR-0768RL	YAGEO	68 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.60	Moisture Resistant	No
RCS080568R0FKEA	Vishay Dale	68 Ω	±1%	0.5	0805	±100ppm/°C	-55 to 155°C	0.50	Automotive AEC-Q200, Pulse Withstanding	Yes
RMCF0805FT68R0	Stackpole Electronics Inc	68 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.65	Automotive AEC-Q200	Yes

Engineering Selection Recommendations

For Standard Industrial Applications: RC2012F680CS (Samsung Electro-Mechanics) and RC0805FR-0768RL (YAGEO) are direct equivalents with identical electrical specifications and 0805 package dimensions. Both maintain ROHS3 compliance and MSL 1 rating. Selection between these parts depends on packaging preference (Cut Tape vs. Tape & Reel) and supplier availability.

For Automotive Applications (AEC-Q200 Required): AC0805FR-0768RL (YAGEO), CRCW080568R0FKEA (Vishay Dale), ERJ-6ENF68R0V (Panasonic), and RMCF0805FT68R0 (Stackpole Electronics Inc) are qualified automotive-grade substitutes with AEC-Q200 certification. These parts maintain identical electrical specifications and 0805 package compatibility while meeting automotive reliability standards.

For High-Reliability or Pulse-Withstanding Applications: CRCW080568R0FKEAHP (Vishay Dale), ERJ-UP6F68R0V (Panasonic), and RCS080568R0FKEA (Vishay Dale) provide 0.5W power rating with pulse-withstanding capability in the same 0805 package. These parts are suitable for applications requiring enhanced transient protection or higher power dissipation margins. AEC-Q200 certification is included.

Compliance Verification: All substitute parts listed maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity rating, and REACH Unaffected status, matching the original RCS2012F680CS specifications.

Frequently Asked Questions (FAQ)

Q: Can CRCW080568R0FKEAHP (0.5W) be used as a direct replacement for RCS2012F680CS (0.125W)? A: Yes. The CRCW080568R0FKEAHP is mechanically and electrically compatible with identical resistance (68 Ohms), tolerance (±1%), package (0805), and temperature specifications. The higher power rating (0.5W vs. 0.125W) provides additional thermal margin and does not create incompatibility. Circuit board layout and thermal management remain unchanged.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging? A: Cut Tape packaging is supplied in individual strips suitable for manual assembly or small-volume production. Tape & Reel packaging is wound on reels for automated pick-and-place assembly systems. Electrical and mechanical specifications are identical; packaging selection depends on assembly process requirements.

Q: Are all listed substitutes ROHS3 compliant? A: Yes. All substitute parts listed maintain ROHS3 compliance status matching the original RCS2012F680CS specification.

Q: Which substitute parts carry AEC-Q200 automotive qualification? A: AC0805FR-0768RL, CRCW080568R0FKEA, CRCW080568R0FKEAHP, ERJ-6ENF68R0V, ERJ-UP6F68R0V, RCS080568R0FKEA, and RMCF0805FT68R0 all carry AEC-Q200 certification. RC2012F680CS and RC0805FR-0768RL do not include this certification.

Q: Does the height difference between substitute parts affect PCB assembly? A: No. All substitute parts are specified for 0805 (2012 Metric) package with maximum seated heights ranging from 0.50mm to 0.70mm. These variations fall within standard 0805 package tolerances and do not affect PCB assembly, reflow soldering, or component placement.

Q: Can ERJ-UP6F68R0V replace RCS2012F680CS in a standard circuit? A: Yes. ERJ-UP6F68R0V is electrically and mechanically compatible with identical resistance, tolerance, and package specifications. The higher power rating (0.5W) and pulse-withstanding feature provide enhanced performance without requiring circuit modifications.

Q: What is the significance of anti-sulfur and moisture-resistant features? A: Anti-sulfur protection prevents corrosion from sulfur-containing environments. Moisture-resistant properties protect against humidity-induced degradation. RCS2012F680CS includes both features; RC2012F680CS includes moisture resistance only. Substitute selection should consider environmental exposure requirements.

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