Equivalent & Substitute Parts for RC1005J1R0CS

Part Overview

The RC1005J1R0CS is a 1 Ohm ±5% 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 and is RoHS3 compliant with MSL Level 1 rating. Substitute parts are identified to address supply availability, performance upgrades, or application-specific requirements while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	1 Ohm
Tolerance	±5%
Power Rating	0.063W (1/16W)
Package / Case	0402 (1005 Metric)
Composition	Thick Film
Operating Temperature Range	-55°C to 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	RoHS3 Compliant
Size / Dimension	0.039" L x 0.020" W (1.00mm x 0.50mm)
Height - Seated (Max)	0.016" (0.40mm)

Substitute Part Grouping Explanation

Substitute parts for the RC1005J1R0CS are qualified based on the following criteria:

Electrical Compatibility: All substitute parts maintain the same 1 Ohm resistance value and 0.063W power rating. Tolerance variations (±1% versus ±5%) represent performance upgrades where tighter tolerance specifications are achievable within the same package footprint.

Mechanical Compatibility: All substitute parts conform to the 0402 (1005 Metric) package standard with identical physical dimensions (0.039" L x 0.020" W, 0.016" max height) and two terminations, ensuring direct PCB footprint compatibility.

Environmental Specifications: All substitute parts operate within the -55°C to 155°C temperature range and maintain MSL Level 1 rating. Temperature coefficient values (±200ppm/°C for substitutes versus ±300ppm/°C for the main part) represent improved thermal stability.

Compliance & Certifications: All parts are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Stackpole Electronics substitutes carry AEC-Q200 automotive qualification, extending application scope to automotive environments.

Packaging Variants: The main part is supplied in Tape & Reel (TR) format. YAGEO substitutes are available in Cut Tape (CT) & Digi-Reel® format. Stackpole substitutes maintain Tape & Reel (TR) packaging.

Parameter Comparison

Parameter	RC1005J1R0CS (Samsung)	RC0402FR-071RL (YAGEO)	RC0402JR-071RL (YAGEO)	RMCF0402FT1R00 (Stackpole)	RMCF0402JT1R00 (Stackpole)
Manufacturer	Samsung Electro-Mechanics	YAGEO	YAGEO	Stackpole Electronics Inc	Stackpole Electronics Inc
Resistance	1 Ohm	1 Ohm	1 Ohm	1 Ohm	1 Ohm
Tolerance	±5%	±1%	±5%	±1%	±5%
Power Rating	0.063W (1/16W)	0.063W (1/16W)	0.063W (1/16W)	0.063W (1/16W)	0.063W (1/16W)
Package / Case	0402 (1005 Metric)	0402 (1005 Metric)	0402 (1005 Metric)	0402 (1005 Metric)	0402 (1005 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±300ppm/°C	±200ppm/°C	±200ppm/°C	±200ppm/°C	±200ppm/°C
Operating Temperature	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C
Size / Dimension	0.039" L x 0.020" W (1.00mm x 0.50mm)	0.039" L x 0.020" W (1.00mm x 0.50mm)	0.039" L x 0.020" W (1.00mm x 0.50mm)	0.039" L x 0.020" W (1.00mm x 0.50mm)	0.039" L x 0.020" W (1.00mm x 0.50mm)
Height - Seated (Max)	0.016" (0.40mm)	0.016" (0.40mm)	0.016" (0.40mm)	0.016" (0.40mm)	0.016" (0.40mm)
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant
Automotive Rating	Not specified	Not specified	Not specified	AEC-Q200	AEC-Q200
Packaging Format	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

Direct Equivalent (Same Tolerance): RC0402JR-071RL (YAGEO) and RMCF0402JT1R00 (Stackpole) maintain the ±5% tolerance specification identical to the RC1005J1R0CS. Both parts are electrically and mechanically interchangeable. RC0402JR-071RL offers higher inventory availability (364,750 pcs) with standard commercial packaging. RMCF0402JT1R00 provides AEC-Q200 automotive qualification for applications requiring automotive-grade components.

Performance Upgrade (Tighter Tolerance): RC0402FR-071RL (YAGEO) and RMCF0402FT1R00 (Stackpole) provide ±1% tolerance with improved temperature coefficient (±200ppm/°C versus ±300ppm/°C). These parts are suitable for applications requiring enhanced precision and thermal stability. RMCF0402FT1R00 includes AEC-Q200 automotive qualification.

Packaging Consideration: YAGEO substitutes are supplied in Cut Tape (CT) & Digi-Reel® format, suitable for lower-volume or mixed-component assembly operations. Stackpole and Samsung parts are supplied in Tape & Reel (TR) format, optimized for high-volume automated assembly.

Compliance & Certifications: All parts maintain RoHS3 compliance and MSL Level 1 rating. Stackpole Electronics substitutes carry AEC-Q200 automotive qualification, extending application eligibility to automotive and harsh-environment applications where Samsung and YAGEO standard parts are not qualified.

Frequently Asked Questions (FAQ)

Q: Can RC0402JR-071RL replace RC1005J1R0CS directly on the PCB?

A: Yes. Both parts conform to the 0402 (1005 Metric) package standard with identical physical dimensions (0.039" L x 0.020" W, 0.016" max height), two terminations, and footprint compatibility. Electrical specifications (1 Ohm, ±5%, 0.063W) are identical. Direct PCB substitution is supported.

Q: What is the difference between ±5% and ±1% tolerance parts?

A: Tolerance specifies the maximum deviation from the nominal 1 Ohm resistance value. ±5% tolerance allows resistance values between 0.95 Ohm and 1.05 Ohm. ±1% tolerance restricts values between 0.99 Ohm and 1.01 Ohm. Applications requiring tighter resistance control should use ±1% parts (RC0402FR-071RL or RMCF0402FT1R00).

Q: Are Stackpole RMCF parts suitable for automotive applications?

A: Yes. RMCF0402FT1R00 and RMCF0402JT1R00 carry AEC-Q200 automotive qualification. These parts are qualified for automotive-grade reliability and environmental stress testing. Standard commercial parts (Samsung RC1005J1R0CS and YAGEO RC series) do not carry automotive qualification.

Q: What does MSL Level 1 mean?

A: Moisture Sensitivity Level (MSL) 1 indicates unlimited shelf life without moisture-related degradation. The component does not require special moisture-control storage or handling procedures. All listed parts maintain MSL Level 1 rating.

Q: Can I use RMCF0402FT1R00 (±1% tolerance) in place of RC1005J1R0CS (±5% tolerance)?

A: Yes. RMCF0402FT1R00 is a performance upgrade with tighter tolerance (±1% versus ±5%), improved temperature coefficient (±200ppm/°C versus ±300ppm/°C), and AEC-Q200 automotive qualification. It is electrically and mechanically compatible and provides enhanced precision for the same application.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging?

A: Tape & Reel (TR) is a continuous reel format optimized for high-volume automated pick-and-place assembly. Cut Tape (CT) & Digi-Reel® provides smaller quantities on cut tape segments, suitable for lower-volume or mixed-component assembly. Both formats contain identical components; packaging format selection depends on assembly volume and equipment compatibility.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed parts (RC1005J1R0CS, RC0402FR-071RL, RC0402JR-071RL, RMCF0402FT1R00, RMCF0402JT1R00) are RoHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for commercial and industrial applications.

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