RC0603J390CS Equivalent & Substitute Parts Reference

Part Overview

The RC0603J390CS is a 39 Ohm ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.05W (1/20W) in the 0201 (0603 Metric) package. This component is classified as Active product status with full RoHS3 compliance and MSL Level 1 rating. Substitute parts are identified when electrical specifications, mechanical dimensions, and environmental ratings remain within the allowed parameter range for this resistor category, ensuring direct functional equivalence in circuit applications.

Substiute Parts

RC0603J390CS

Samsung Electro-MechanicsIn Stock: 8486RC0603J390CS Datasheet

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RCS0603J390CS

Samsung Electro-MechanicsIn Stock: 15930RCS0603J390CS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC0603J390CS is determined by strict equivalence across the following critical parameters:

Electrical Equivalence: Resistance value (39 Ohms), tolerance (±5%), and power rating (0.05W / 1/20W) must be identical.

Mechanical Equivalence: Package designation (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm), and seated height (0.010" / 0.26mm maximum) must match exactly.

Environmental & Compliance Equivalence: Operating temperature range (-55°C ~ 125°C), temperature coefficient (±250ppm/°C), composition (Thick Film), RoHS3 compliance, and MSL Level 1 rating must be maintained.

Termination Equivalence: Two-terminal configuration required.

The substitute part RCS0603J390CS meets all these criteria while offering enhanced environmental protection through anti-sulfur coating in addition to moisture resistance.

Parameter Comparison

Engineering Selection Recommendations

Both RC0603J390CS and RCS0603J390CS are Active product status components from Samsung Electro-Mechanics with full ROHS3 compliance and REACH Unaffected designation. Selection between these parts is based on application environment requirements:

RC0603J390CS is suitable for standard applications requiring moisture resistance in controlled environments.

RCS0603J390CS is suitable for applications requiring enhanced environmental protection, including exposure to sulfur-containing atmospheres or corrosive industrial environments, while maintaining identical electrical and mechanical specifications.

Both parts carry MSL Level 1 (Unlimited) rating, indicating no moisture sensitivity constraints during storage or handling. The identical operating temperature range (-55°C ~ 125°C) and temperature coefficient (±250ppm/°C) ensure equivalent thermal performance in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can RCS0603J390CS be used as a direct replacement for RC0603J390CS?

A: Yes. RCS0603J390CS meets all electrical, mechanical, and environmental specifications of RC0603J390CS. The substitute part maintains identical resistance (39 Ohms), tolerance (±5%), power rating (0.05W), package dimensions (0201 / 0603 Metric), and operating temperature range (-55°C ~ 125°C). The addition of anti-sulfur coating represents an enhancement rather than a deviation from the original specification.

Q: Are there any package compatibility differences between these parts?

A: No. Both parts use the 0201 (0603 Metric) package with identical physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and maximum seated height (0.010" / 0.26mm). PCB footprints and assembly processes are interchangeable.

Q: What is the difference between RC and RCS series designations?

A: The RC series provides moisture-resistant thick film construction. The RCS series provides both anti-sulfur and moisture-resistant thick film construction. Both series share identical electrical performance and mechanical specifications for equivalent part numbers.

Q: Do these parts have different compliance certifications?

A: No. Both RC0603J390CS and RCS0603J390CS carry identical RoHS3 compliance, REACH Unaffected status, and MSL Level 1 (Unlimited) rating. Compliance certifications are equivalent.

Q: Which part should be selected for long-term reliability in harsh environments?

A: Selection is based on environmental exposure. RCS0603J390CS provides enhanced protection against sulfur-containing atmospheres and corrosive industrial environments. RC0603J390CS is appropriate for standard moisture-controlled applications. Both parts maintain identical electrical performance and operating temperature specifications across their rated range.