RCS0603J124CS Equivalent & Substitute Parts

Part Overview

The RCS0603J124CS is a 120 kOhms ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 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 ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified to support component availability, procurement flexibility, and design optimization across compatible electrical and mechanical specifications.

Substiute Parts

RCS0603J124CS

Samsung Electro-MechanicsIn Stock: 1016RCS0603J124CS Datasheet

Current PartRFQ

RC0603F124CS

Samsung Electro-MechanicsIn Stock: 1420RC0603F124CS Datasheet

SimilarRFQ

RC0603J124CS

Samsung Electro-MechanicsIn Stock: 982RC0603J124CS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RCS0603J124CS are qualified based on the following critical parameters:

Electrical Compatibility:

• Resistance value: 120 kOhms (exact match required)
• Power rating: 0.05W (1/20W) minimum
• Temperature coefficient: ±250ppm/°C
• Operating temperature range: -55°C ~ 125°C

Mechanical Compatibility:

• Package format: 0201 (0603 Metric)
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm)
• Number of terminations: 2

Regulatory & Environmental Compliance:

• RoHS3 compliance required
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Unaffected status

Tolerance variations (±5% versus ±1%) are permitted substitutions when circuit design allows tighter tolerance specifications. Packaging format differences (Tape & Reel versus Cut Tape) do not affect electrical or mechanical performance and represent procurement and handling variations only.

Parameter Comparison

Engineering Selection Recommendations

RC0603J124CS (Cut Tape Packaging)

This substitute part is electrically and mechanically identical to the RCS0603J124CS. The primary difference is packaging format: Cut Tape (CT) versus Tape & Reel (TR). Both parts carry identical electrical specifications, tolerance, power rating, and temperature characteristics. Selection of RC0603J124CS is appropriate when Cut Tape packaging meets procurement and assembly requirements. All regulatory certifications (ROHS3, REACH Unaffected) and compliance standards are maintained.

RC0603F124CS (±1% Tolerance)

This substitute part offers tighter tolerance specification (±1% versus ±5%) while maintaining all other electrical and mechanical parameters. The RC0603F124CS is suitable for applications requiring improved accuracy and stability. The enhanced tolerance specification does not introduce incompatibility; circuits designed for ±5% tolerance operate within specification with ±1% components. This part is available in Cut Tape packaging. All regulatory and environmental compliance requirements are satisfied.

All substitute parts maintain active production status, ROHS3 compliance, and unlimited moisture sensitivity level (MSL 1), ensuring long-term availability and consistent quality standards.

Frequently Asked Questions (FAQ)

Q: Can RC0603J124CS (Cut Tape) be used as a direct replacement for RCS0603J124CS (Tape & Reel)?

A: Yes. The packaging format difference (Cut Tape versus Tape & Reel) does not affect electrical performance or mechanical compatibility. Both parts are identical in resistance value, tolerance, power rating, package dimensions, and operating characteristics. Selection depends on assembly process requirements and procurement preferences.

Q: What is the difference between RC0603F124CS (±1%) and RCS0603J124CS (±5%)?

A: The primary difference is tolerance specification. RC0603F124CS maintains ±1% tolerance, while RCS0603J124CS maintains ±5% tolerance. Both parts share identical resistance value (120 kOhms), power rating (0.05W), package format (0201), temperature coefficient (±250ppm/°C), and operating temperature range (-55°C ~ 125°C). The tighter tolerance of RC0603F124CS provides improved accuracy without introducing incompatibility.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. RCS0603J124CS, RC0603F124CS, and RC0603J124CS are all ROHS3 compliant with REACH Unaffected status. All parts meet current regulatory requirements for hazardous substance restrictions.

Q: What is the moisture sensitivity level for these parts?

A: All listed parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions. These components do not require special moisture control during storage, handling, or assembly.

Q: Can RC0603F124CS be substituted in a circuit designed for RCS0603J124CS?

A: Yes. RC0603F124CS operates within the electrical and mechanical specifications of circuits designed for RCS0603J124CS. The ±1% tolerance of RC0603F124CS is tighter than the ±5% specification of RCS0603J124CS, ensuring compatibility across all tolerance-dependent circuit functions.

Q: What are the physical dimensions of the 0201 package?

A: The 0201 (0603 Metric) package measures 0.024" length by 0.012" width (0.60mm x 0.30mm). Maximum seated height is 0.010" (0.25mm to 0.26mm depending on part variant). All substitute parts conform to these dimensions.

Q: Are there any differences in temperature coefficient between substitute parts?

A: No. All listed parts maintain identical temperature coefficient specification of ±250ppm/°C and operating temperature range of -55°C ~ 125°C.