Equivalent & Substitute Parts for RCS2012F684CS

Part Overview

The RCS2012F684CS is a 680 kOhms ±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 with anti-sulfur and moisture-resistant properties. The part is supplied in Tape & Reel packaging and complies with ROHS3 and REACH standards.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the main part. Substitution becomes necessary due to inventory availability, supply chain optimization, or design flexibility across multiple qualified suppliers.

Key Parameters

Parameter	Value
Resistance	680 kOhms
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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F684CS are qualified based on the following criteria:

Electrical Parameters (Must Match):

Resistance value: 680 kOhms
Tolerance: ±1%
Temperature Coefficient: ±100ppm/°C
Operating Temperature Range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

Package / Case: 0805 (2012 Metric)
Number of Terminations: 2
Supplier Device Package: 0805

Compliance Parameters (Must Match):

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Status: REACH Unaffected

Power Rating Consideration: The primary part operates at 0.125W (1/8W). Substitute parts at this power level are direct equivalents. One substitute part (ERJ-UP6F6803V) operates at 0.5W (1/2W) and is listed as a higher-power alternative for applications requiring increased power dissipation capability within the same package footprint.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Op. Temp Range	Height Max	RoHS	MSL
RCS2012F684CS	Samsung Electro-Mechanics	680 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.66mm	ROHS3	1
AC0805FR-07680KL	YAGEO	680 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.60mm	ROHS3	1
CRCW0805680KFKEA	Vishay Dale	680 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.50mm	ROHS3	1
ERJ-6ENF6803V	Panasonic Electronic Components	680 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.70mm	ROHS3	1
ERJ-UP6F6803V	Panasonic Electronic Components	680 kOhms	±1%	0.5W	0805	±100ppm/°C	-55°C ~ 155°C	0.70mm	ROHS3	1
KTR10EZPF6803	Rohm Semiconductor	680 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.65mm	ROHS3	1
RC0805FR-07680KL	YAGEO	680 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.60mm	ROHS3	1
RMCF0805FT680K	Stackpole Electronics Inc	680 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.65mm	ROHS3	1

Engineering Selection Recommendations

Direct Equivalents (0.125W Power Rating):

AC0805FR-07680KL, CRCW0805680KFKEA, ERJ-6ENF6803V, KTR10EZPF6803, RC0805FR-07680KL, and RMCF0805FT680K are direct electrical and mechanical equivalents to the RCS2012F684CS. All parts share identical resistance, tolerance, temperature coefficient, operating temperature range, package dimensions, and compliance certifications. These parts are suitable for one-to-one substitution in applications where the 0.125W power rating is specified.

Higher Power Alternative (0.5W Power Rating):

ERJ-UP6F6803V operates at 0.5W (1/2W) within the same 0805 package footprint. This part is suitable for applications requiring increased power dissipation while maintaining identical electrical specifications and compliance requirements. Selection of this part requires confirmation that the application circuit can accommodate the higher power rating without thermal or layout constraints.

Compliance Alignment:

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and Moisture Sensitivity Level 1 (Unlimited). Parts designated with AEC-Q200 automotive qualification (AC0805FR-07680KL, CRCW0805680KFKEA, ERJ-6ENF6803V, ERJ-UP6F6803V, KTR10EZPF6803, RMCF0805FT680K) are suitable for automotive and industrial applications requiring automotive-grade component qualification.

Frequently Asked Questions (FAQ)

Q: Can AC0805FR-07680KL replace RCS2012F684CS in a standard application?

A: Yes. AC0805FR-07680KL meets all electrical and mechanical specifications of RCS2012F684CS. Both parts are 680 kOhms ±1% 0.125W thick film resistors in 0805 package with identical temperature coefficients and operating ranges. The parts are directly interchangeable.

Q: What is the difference between ERJ-6ENF6803V and ERJ-UP6F6803V?

A: Both parts are 680 kOhms ±1% thick film resistors in 0805 package. ERJ-6ENF6803V operates at 0.125W (1/8W), while ERJ-UP6F6803V operates at 0.5W (1/2W). The higher power rating of ERJ-UP6F6803V allows greater power dissipation in the same package footprint. Selection depends on application power requirements.

Q: Are all substitute parts suitable for automotive applications?

A: Six of the seven substitute parts carry AEC-Q200 automotive qualification: AC0805FR-07680KL, CRCW0805680KFKEA, ERJ-6ENF6803V, ERJ-UP6F6803V, KTR10EZPF6803, and RMCF0805FT680K. RC0805FR-07680KL does not carry AEC-Q200 designation. For automotive applications, select from the AEC-Q200 qualified parts.

Q: Does package height variation affect substitution?

A: Package heights range from 0.50mm to 0.70mm across substitute parts. All heights remain within the 0805 (2012 Metric) specification. Height variation may affect PCB layout clearance in space-constrained designs. Verify clearance requirements before substitution in applications with height restrictions.

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

A: Most substitute parts are supplied in Tape & Reel (TR) packaging. CRCW0805680KFKEA and RC0805FR-07680KL are supplied in Cut Tape (CT) & Digi-Reel® packaging. Verify packaging format requirements for automated assembly processes before part selection.

Q: What is Moisture Sensitivity Level 1?

A: Moisture Sensitivity Level 1 (Unlimited) indicates the component has unlimited shelf life without moisture control requirements. No baking or desiccant storage is required. All listed parts share this MSL rating.

Q: Can I substitute based on resistance value alone?

A: No. Substitution requires matching multiple parameters: resistance (680 kOhms), tolerance (±1%), power rating (0.125W for direct equivalents), package (0805), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance certifications (ROHS3, MSL 1). All parameters must align for valid substitution.

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