RC1005J3R0CS Equivalent & Substitute Parts

Part Overview

The RC1005J3R0CS is a 3 Ohm, ±5% tolerance, 1/16W (0.063W) thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0402 (1005 Metric) package. This component is classified as Active product status and is designed for general-purpose applications requiring moisture-resistant thick film construction. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

RC1005J3R0CS

Samsung Electro-MechanicsIn Stock: 1075RC1005J3R0CS Datasheet

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RC0402JR-073RL

YAGEOIn Stock: 46100RC0402JR-073RL Datasheet

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RMCF0402JT3R00

Stackpole Electronics IncIn Stock: 17583RMCF0402JT3R00 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC1005J3R0CS are qualified based on the following criteria:

Electrical Equivalence: Resistance value of 3 Ohms with ±5% tolerance and power rating of 0.063W (1/16W) are mandatory for functional interchangeability.

Mechanical Compatibility: Package type 0402 (1005 Metric) with identical physical dimensions (0.039" L x 0.020" W, 1.00mm x 0.50mm) and maximum seated height of 0.016" (0.40mm) ensures PCB footprint compatibility.

Environmental Specifications: Operating temperature range of -55°C ~ 155°C and thick film composition must be maintained.

Regulatory Compliance: ROHS3 compliance, MSL Level 1, and REACH Unaffected status are required for equivalent substitution.

Identified Substitute Parts:

• RC0402JR-073RL (YAGEO)
• RMCF0402JT3R00 (Stackpole Electronics Inc)

Parameter Comparison

Engineering Selection Recommendations

RC0402JR-073RL (YAGEO): This substitute maintains full electrical and mechanical equivalence to the RC1005J3R0CS. The temperature coefficient of ±200ppm/°C is superior to the original part's ±300ppm/°C specification, providing improved stability across the operating temperature range. ROHS3 compliance and MSL Level 1 rating confirm regulatory alignment. This part is suitable for direct substitution in applications where moisture resistance and general-purpose thick film performance are required.

RMCF0402JT3R00 (Stackpole Electronics Inc): This substitute provides electrical and mechanical equivalence with the addition of Automotive AEC-Q200 qualification. The temperature coefficient of ±200ppm/°C matches the YAGEO alternative. AEC-Q200 certification indicates enhanced reliability testing and qualification for automotive-grade applications. This part is appropriate for substitution in designs requiring automotive-grade component reliability or when sourcing from automotive-qualified suppliers is mandated.

Both substitute parts satisfy the core substitution criteria: identical resistance, tolerance, power rating, package dimensions, operating temperature range, and regulatory compliance status. Selection between substitutes depends on supply chain requirements, automotive qualification necessity, and manufacturer preference.

Frequently Asked Questions (FAQ)

Q: Can RC0402JR-073RL and RMCF0402JT3R00 be used interchangeably with RC1005J3R0CS?

A: Both parts meet the electrical and mechanical substitution criteria. RC0402JR-073RL is suitable for general-purpose applications. RMCF0402JT3R00 includes AEC-Q200 automotive qualification and is appropriate for automotive or reliability-critical applications. Selection depends on application requirements and supply chain constraints.

Q: What is the significance of the temperature coefficient difference between the original part and substitutes?

A: The RC1005J3R0CS has a temperature coefficient of ±300ppm/°C, while both substitutes specify ±200ppm/°C. A lower temperature coefficient indicates better resistance stability across temperature variations. The substitute parts provide improved temperature stability, which is beneficial for precision applications operating across the full -55°C ~ 155°C range.

Q: Are the physical dimensions identical across all three parts?

A: Yes. All three parts conform to the 0402 (1005 Metric) package standard with dimensions of 0.039" L x 0.020" W (1.00mm x 0.50mm) and maximum seated height of 0.016" (0.40mm). PCB footprints and reflow profiles are directly compatible.

Q: Do all parts meet the same regulatory requirements?

A: All three parts are ROHS3 compliant, carry MSL Level 1 (Unlimited) moisture sensitivity rating, and have REACH Unaffected status. The RMCF0402JT3R00 includes additional AEC-Q200 automotive qualification, which is a superset of general compliance requirements.

Q: What is the difference between moisture-resistant and automotive AEC-Q200 features?

A: Moisture resistance is a material property indicating the thick film composition resists moisture ingress. AEC-Q200 is an automotive qualification standard requiring enhanced reliability testing, failure rate analysis, and qualification documentation. RMCF0402JT3R00 includes both moisture resistance and AEC-Q200 qualification.

Q: Can these parts be used in high-reliability or space applications?

A: The provided specifications do not include high-reliability certifications such as MIL-PRF-55182 or space-grade qualifications. These parts are qualified for general-purpose and automotive applications. High-reliability or space applications require components with specific certifications not present in this product line.