RCS0603J393CS Equivalent & Substitute Parts

Part Overview

The RCS0603J393CS is a 39 kOhms ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0201 (0603 Metric) package format. This component is rated for 0.05W (1/20W) power dissipation and features anti-sulfur and moisture-resistant construction. The part is currently in active production status with 686 pieces available in original stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct functional replacement in circuit applications.

Substiute Parts

RCS0603J393CS

Samsung Electro-MechanicsIn Stock: 764RCS0603J393CS Datasheet

Current PartRFQ

RC0603J393CS

Samsung Electro-MechanicsIn Stock: 1237RC0603J393CS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS0603J393CS is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Resistance value (39 kOhms), tolerance (±5%), and power rating (0.05W) must be identical. Temperature coefficient (±250ppm/°C) and operating temperature range (-55°C ~ 125°C) establish thermal performance boundaries.

Mechanical Compatibility: Package type (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W), and termination count (2) must match to ensure PCB footprint compatibility and assembly process alignment.

Compliance & Environmental: RoHS3 compliance, MSL rating (1 - Unlimited), and REACH status must be maintained. These certifications confirm regulatory acceptability and handling requirements.

Composition & Features: Thick film construction is the baseline. Anti-sulfur and moisture-resistant properties are desirable but not mandatory for substitution; however, moisture resistance is a minimum requirement.

The identified substitute RC0603J393CS meets all electrical and mechanical criteria while maintaining full compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The RC0603J393CS substitute part is functionally equivalent to the RCS0603J393CS across all critical electrical and mechanical parameters. Both components are manufactured by Samsung Electro-Mechanics, maintain active production status, and carry identical RoHS3 and REACH certifications.

The primary distinction between the two parts is packaging format: the main part is supplied in Tape & Reel (TR) configuration, while the substitute is available in Cut Tape (CT) format. This difference affects procurement and assembly logistics but does not impact electrical performance or PCB-level functionality.

Height-seated maximum dimension shows a negligible variance (0.25mm versus 0.26mm), which remains within acceptable tolerance for standard PCB assembly processes and does not affect component placement or clearance requirements.

Selection between these parts should be based on supply chain availability, packaging requirements for manufacturing processes, and inventory management objectives. Both parts satisfy identical circuit design specifications and regulatory compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can RC0603J393CS be used as a direct replacement for RCS0603J393CS in production assembly?

A: Yes. Both parts are electrically and mechanically equivalent with identical resistance (39 kOhms ±5%), power rating (0.05W), package type (0201), and operating specifications. The only difference is packaging format (Cut Tape versus Tape & Reel), which does not affect circuit functionality.

Q: What is the significance of the packaging format difference (TR vs. CT)?

A: Tape & Reel (TR) packaging is optimized for high-volume automated assembly lines with continuous feed systems. Cut Tape (CT) packaging is suitable for lower-volume production, manual assembly, or component kitting. The choice depends on manufacturing process requirements, not component performance.

Q: Are the height dimensions different between these parts?

A: The seated height maximum differs by 0.01mm (0.25mm versus 0.26mm). This variance is negligible for standard PCB assembly and does not affect component placement, solder joint formation, or clearance to adjacent components.

Q: Do both parts meet the same compliance standards?

A: Yes. Both RCS0603J393CS and RC0603J393CS are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (Unlimited). Regulatory and environmental compliance is identical.

Q: What is the temperature coefficient specification, and does it differ between parts?

A: Both parts have a temperature coefficient of ±250ppm/°C and operate across the identical temperature range of -55°C to 125°C. Thermal performance characteristics are equivalent.

Q: Can these parts be mixed in the same production batch?

A: From an electrical and mechanical standpoint, yes. However, packaging format differences may require separate handling procedures in automated assembly environments. Consult manufacturing process documentation for specific guidelines.