RC1005F6811CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F6811CS is a 6.81 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This component is rated for 0.063W (1/16W) power dissipation with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with 881 pieces currently in stock. 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.

Key Parameters

Parameter	Value
Resistance	6.81 kOhms
Tolerance	±1%
Power Rating	0.063W (1/16W)
Package / Case	0402 (1005 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Packaging	Tape & Reel (TR)

Substitute Part Grouping Explanation

Substitution eligibility for the RC1005F6811CS is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Resistance value: 6.81 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Package / Case: 0402 (1005 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature Coefficient: ±100ppm/°C (exact match required)
Operating Temperature Range: -55°C to 155°C (exact match required)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Secondary Compatibility Factors:

Power rating: 0.063W minimum (higher ratings acceptable for drop-in replacement)
Termination count: 2 (exact match required)
Supplier device package: 0402 (exact match required)

Substitute parts are classified as Direct or Similar based on alignment with these parameters. Direct substitutes match all primary criteria. Similar substitutes may include automotive AEC-Q200 qualification or enhanced power ratings while maintaining full electrical and mechanical compatibility.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Features	RoHS Status	Inventory (Pcs)
RC1005F6811CS	Samsung Electro-Mechanics	6.81 kΩ	±1%	0.063	0402	±100ppm/°C	-55 to 155°C	Moisture Resistant	ROHS3 Compliant	881
CR0402-FX-6811GLF	Bourns Inc.	6.81 kΩ	±1%	0.063	0402	±100ppm/°C	-55 to 155°C	—	ROHS3 Compliant	21,757
ERJ-2RKF6811X	Panasonic Electronic Components	6.81 kΩ	±1%	0.1	0402	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3 Compliant	718,491
RC0402FR-076K81L	YAGEO	6.81 kΩ	±1%	0.063	0402	±100ppm/°C	-55 to 155°C	Moisture Resistant	ROHS3 Compliant	150,969
AC0402FR-076K81L	YAGEO	6.81 kΩ	±1%	0.063	0402	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Moisture Resistant	ROHS3 Compliant	37,415
CRCW04026K81FKED	Vishay Dale	6.81 kΩ	±1%	0.063	0402	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3 Compliant	92,029
CRCW04026K81FKTD	Vishay Dale	6.81 kΩ	±1%	0.063	0402	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	RoHS Non-compliant	18,653
RMCF0402FT6K81	Stackpole Electronics Inc	6.81 kΩ	±1%	0.063	0402	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3 Compliant	150,827

Engineering Selection Recommendations

Direct Substitutes (Full Electrical and Mechanical Equivalence):

CR0402-FX-6811GLF (Bourns Inc.) provides direct substitution with identical electrical specifications and ROHS3 compliance. This part is suitable for applications where moisture resistance is not explicitly required and standard industrial operating conditions apply.

RC0402FR-076K81L (YAGEO) offers direct substitution with moisture-resistant construction matching the original RC1005F6811CS specification. ROHS3 compliance and high inventory availability (150,969 pieces) support consistent procurement.

Similar Substitutes (Enhanced Specifications):

ERJ-2RKF6811X (Panasonic Electronic Components) provides enhanced power rating of 0.1W (1/10W) with automotive AEC-Q200 qualification. This part is suitable for applications requiring automotive-grade reliability or where higher power dissipation margin is beneficial. Extremely high inventory (718,491 pieces) ensures supply continuity.

AC0402FR-076K81L (YAGEO) combines automotive AEC-Q200 qualification with moisture-resistant construction and ROHS3 compliance. This part is appropriate for automotive or harsh-environment applications requiring both certifications.

CRCW04026K81FKED (Vishay Dale) provides automotive AEC-Q200 qualification with ROHS3 compliance. Suitable for automotive applications with standard industrial moisture sensitivity requirements.

RMCF0402FT6K81 (Stackpole Electronics Inc) offers automotive AEC-Q200 qualification with ROHS3 compliance and high inventory availability (150,827 pieces). Appropriate for automotive-grade applications.

Non-Recommended Substitute:

CRCW04026K81FKTD (Vishay Dale) exhibits RoHS non-compliance and REACH-affected status, making it unsuitable for applications subject to environmental regulations or RoHS requirements.

Frequently Asked Questions (FAQ)

Q: Can ERJ-2RKF6811X replace RC1005F6811CS in all applications?

A: ERJ-2RKF6811X is electrically and mechanically compatible as a drop-in replacement. The higher power rating (0.1W vs. 0.063W) provides additional thermal margin without affecting circuit performance. Automotive AEC-Q200 qualification is an enhancement that does not restrict use in non-automotive applications.

Q: What is the difference between Direct and Similar substitutes?

A: Direct substitutes match all electrical and mechanical parameters of the original part. Similar substitutes include additional certifications (such as automotive AEC-Q200) or enhanced power ratings while maintaining full compatibility. Similar substitutes are suitable for applications where the enhanced specifications provide value.

Q: Is moisture resistance a critical parameter for substitution?

A: Moisture resistance is a feature of the original RC1005F6811CS. Substitutes without explicit moisture-resistant designation (such as CR0402-FX-6811GLF) remain compatible for standard industrial applications. For applications requiring moisture resistance, select RC0402FR-076K81L, AC0402FR-076K81L, or the original part.

Q: Can I use CRCW04026K81FKTD as a substitute?

A: CRCW04026K81FKTD is not recommended. This part exhibits RoHS non-compliance and REACH-affected status, which may violate regulatory requirements in applications subject to environmental directives.

Q: What inventory considerations apply to substitute selection?

A: ERJ-2RKF6811X offers the highest inventory availability (718,491 pieces), followed by RC0402FR-076K81L (150,969 pieces) and RMCF0402FT6K81 (150,827 pieces). High inventory availability supports long-term supply chain stability and reduces lead time risk.

Q: Are all substitutes available in Tape & Reel (TR) packaging?

A: All listed substitutes are supplied in Tape & Reel (TR) packaging, matching the original part's packaging format for automated assembly compatibility.

Q: What is the significance of ±100ppm/°C temperature coefficient?

A: The ±100ppm/°C temperature coefficient is identical across all substitutes and the original part. This parameter determines resistance drift over the operating temperature range and is a critical equivalence criterion. All listed parts maintain this specification.

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