RC1005F2611CS Equivalent & Substitute Parts

Part Overview

The RC1005F2611CS is a 2.61 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This surface mount device is rated at 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 ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified to address inventory availability, supply chain continuity, and application-specific requirements such as automotive qualification or enhanced power ratings.

Key Parameters

Parameter	Value
Resistance	2.61 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 ~ 155°C
Size / Dimension	0.039" L x 0.020" W (1.00mm x 0.50mm)
Height - Seated (Max)	0.016" (0.40mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RC1005F2611CS are classified based on strict electrical and mechanical parameter alignment. All identified substitutes maintain identical resistance value (2.61 kOhms), tolerance (±1%), package format (0402), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). Mechanical compatibility is ensured through matching physical dimensions (1.00mm x 0.50mm length and width, 0.40mm maximum seated height) and identical termination count (2 terminations).

Substitutes are grouped into three categories:

Direct Equivalents maintain all electrical specifications including the 0.063W (1/16W) power rating and standard thick film composition without automotive qualification.

Upgrade Substitutes provide enhanced power rating (0.1W / 1/10W) while maintaining all other electrical parameters, suitable for applications requiring higher thermal headroom.

Similar Substitutes include automotive AEC-Q200 qualification in addition to standard specifications, appropriate for automotive and high-reliability applications.

All substitute parts comply with ROHS3 standards, maintain MSL 1 rating, and are classified as Active products.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Operating Temp	Features	Automotive Rating
RC1005F2611CS	Samsung Electro-Mechanics	2.61 kOhms	±1%	0.063W	0402	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	None
CR0402-FX-2611GLF	Bourns Inc.	2.61 kOhms	±1%	0.063W	0402	±100ppm/°C	-55°C ~ 155°C	Standard	None
RC0402FR-072K61L	YAGEO	2.61 kOhms	±1%	0.063W	0402	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	None
ERJ-2RKF2611X	Panasonic Electronic Components	2.61 kOhms	±1%	0.1W	0402	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	AEC-Q200
CRCW04022K61FKED	Vishay Dale	2.61 kOhms	±1%	0.063W	0402	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	AEC-Q200
RMCF0402FT2K61	Stackpole Electronics Inc	2.61 kOhms	±1%	0.063W	0402	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	AEC-Q200

Engineering Selection Recommendations

For Standard Applications: CR0402-FX-2611GLF (Bourns Inc.) and RC0402FR-072K61L (YAGEO) serve as direct functional equivalents to RC1005F2611CS. Both maintain identical electrical specifications and package compatibility. Selection between these options depends on supply chain availability and packaging preference (Tape & Reel versus Cut Tape & Digi-Reel).

For Enhanced Thermal Performance: ERJ-2RKF2611X (Panasonic Electronic Components) provides upgraded 0.1W power rating while maintaining all other electrical parameters. This substitute is appropriate for applications where thermal margin improvement is beneficial without circuit redesign.

For Automotive and High-Reliability Applications: CRCW04022K61FKED (Vishay Dale) and RMCF0402FT2K61 (Stackpole Electronics Inc) incorporate AEC-Q200 automotive qualification. These parts are suitable for automotive-grade designs and applications requiring enhanced reliability documentation. Both maintain the 0.063W power rating and standard thick film composition.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and Active product status, ensuring regulatory and environmental compatibility with the original specification.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-2611GLF replace RC1005F2611CS in all applications?

A: Yes. CR0402-FX-2611GLF maintains identical electrical specifications (2.61 kOhms ±1%, 0.063W, ±100ppm/°C) and mechanical dimensions (0402 package, 1.00mm x 0.50mm). Both parts are ROHS3 compliant with MSL 1 rating. The primary difference is manufacturer and packaging format.

Q: What is the difference between the main part and ERJ-2RKF2611X?

A: ERJ-2RKF2611X provides higher power rating (0.1W versus 0.063W) and includes Panasonic's AEC-Q200 automotive qualification. All other electrical parameters remain identical. This upgrade is suitable for applications requiring additional thermal headroom or automotive-grade components.

Q: Are the automotive-qualified parts (CRCW04022K61FKED and RMCF0402FT2K61) required for non-automotive applications?

A: No. Automotive qualification is not required for standard industrial or consumer applications. These parts are specified when automotive-grade reliability documentation or AEC-Q200 compliance is mandated by design requirements.

Q: Do all substitute parts fit the same PCB footprint?

A: Yes. All substitute parts use the 0402 (1005 Metric) package with identical dimensions (0.039" L x 0.020" W / 1.00mm x 0.50mm) and maximum seated height (0.016" / 0.40mm). PCB footprints are interchangeable.

Q: What is the significance of moisture resistant construction in RC1005F2611CS and RC0402FR-072K61L?

A: Moisture resistant thick film construction provides enhanced reliability in humid environments. RC0402FR-072K61L explicitly includes this feature. CR0402-FX-2611GLF does not specify moisture resistance. For applications in high-humidity or marine environments, RC0402FR-072K61L is preferred.

Q: Can I use these parts interchangeably in production?

A: Substitution is permitted within the constraints of identical electrical specifications and package compatibility. Automotive-qualified parts (ERJ-2RKF2611X, CRCW04022K61FKED, RMCF0402FT2K61) should not be substituted with non-qualified parts in designs requiring AEC-Q200 compliance. Conversely, non-qualified parts may be used where automotive qualification is not specified.

Q: What packaging options are available?

A: RC1005F2611CS, CR0402-FX-2611GLF, CRCW04022K61FKED, and RMCF0402FT2K61 are supplied in Tape & Reel (TR) format. RC0402FR-072K61L and ERJ-2RKF2611X are supplied in Cut Tape (CT) & Digi-Reel format. Packaging selection depends on assembly equipment and volume requirements.

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