RCS0603J184CS Equivalent & Substitute Parts

Part Overview

The RCS0603J184CS is a 180 kOhms ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.05W (1/20W) in a 0201 (0603 Metric) package. This component is designed for surface mount applications requiring moisture resistance and anti-sulfur protection in compact form factors. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when electrical parameters, mechanical dimensions, and environmental ratings align within acceptable tolerances for direct circuit board replacement.

Substiute Parts

RCS0603J184CS

Samsung Electro-MechanicsIn Stock: 1253RCS0603J184CS Datasheet

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RC0603F184CS

Samsung Electro-MechanicsIn Stock: 804RC0603F184CS Datasheet

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RC0603J184CS

Samsung Electro-MechanicsIn Stock: 26614RC0603J184CS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RCS0603J184CS are identified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Parameters:

• Resistance value: 180 kOhms (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±250ppm/°C (exact match required)
• Operating temperature range: -55°C to 125°C (exact match required)

Mechanical Parameters:

• Package / Case: 0201 (0603 Metric) (exact match required)
• Physical dimensions: 0.024" L x 0.012" W / 0.60mm x 0.30mm (exact match required)
• Number of terminations: 2 (exact match required)

Environmental & Compliance Parameters:

• RoHS3 compliance (required)
• Moisture Sensitivity Level: 1 (Unlimited) (required)
• Composition: Thick Film (required)

Tolerance variations (±5% vs ±1%) are permitted when the substitute part meets all other electrical and mechanical criteria, as tolerance is a design-selectable parameter that does not affect physical compatibility or thermal performance. Packaging format (Tape & Reel vs Cut Tape) does not affect component functionality and represents a supply chain variable only.

Parameter Comparison

Engineering Selection Recommendations

RC0603J184CS is the primary substitute for RCS0603J184CS. Both parts are manufactured by Samsung Electro-Mechanics with identical electrical specifications (180 kOhms ±5%, 0.05W, ±250ppm/°C, -55°C to 125°C operating range) and mechanical dimensions (0201 package, 0.60mm x 0.30mm). Both maintain Active product status, ROHS3 compliance, and MSL 1 rating. The only difference is packaging format (Tape & Reel vs Tape & Reel), which does not affect component performance. This substitute provides direct functional equivalence with maximum inventory availability (26,585 pcs).

RC0603F184CS is a secondary substitute suitable for applications where tighter tolerance is required. This part maintains all critical electrical and mechanical parameters identical to the main part, with the exception of tolerance specification (±1% vs ±5%). The RC0603F184CS is supplied in Cut Tape format rather than Tape & Reel. All compliance certifications (ROHS3, MSL 1) and environmental ratings remain equivalent. Selection of this substitute is appropriate only when circuit design requires ±1% tolerance performance.

All three parts share identical resistance value, power rating, temperature coefficient, operating temperature range, package type, physical dimensions, and environmental compliance status. Selection between them is determined by tolerance requirement and packaging format availability.

Frequently Asked Questions (FAQ)

Q: Can RC0603J184CS replace RCS0603J184CS in production assembly?

A: Yes. RC0603J184CS is a direct functional equivalent. Both parts have identical resistance (180 kOhms), tolerance (±5%), power rating (0.05W), temperature coefficient (±250ppm/°C), operating temperature range (-55°C to 125°C), and 0201 package dimensions (0.60mm x 0.30mm). The only difference is packaging format (both are Tape & Reel). No circuit redesign or board layout modification is required.

Q: What is the difference between RC0603J184CS and RC0603F184CS?

A: The primary difference is tolerance specification. RC0603J184CS has ±5% tolerance, while RC0603F184CS has ±1% tolerance. All other electrical parameters (resistance value, power rating, temperature coefficient, operating temperature) are identical. RC0603F184CS is supplied in Cut Tape format instead of Tape & Reel. Selection depends on circuit tolerance requirements and packaging format compatibility with assembly equipment.

Q: Are all three parts RoHS3 compliant?

A: Yes. RCS0603J184CS, RC0603J184CS, and RC0603F184CS are all ROHS3 compliant with REACH Unaffected status. All three parts meet environmental regulatory requirements for commercial and industrial applications.

Q: What does MSL 1 (Unlimited) mean for these resistors?

A: Moisture Sensitivity Level 1 (Unlimited) indicates these components have no moisture sensitivity restrictions. The parts can be stored indefinitely without special humidity control or baking requirements prior to soldering. This classification applies to all three substitute parts.

Q: Can I use RC0603F184CS (±1% tolerance) as a direct replacement for RCS0603J184CS (±5% tolerance)?

A: Yes, from a mechanical and functional standpoint. RC0603F184CS will physically fit and electrically function in any circuit designed for RCS0603J184CS. However, the tighter tolerance (±1% vs ±5%) means RC0603F184CS will have more precise resistance values. This substitution is appropriate only if the circuit design does not require the wider tolerance range of the original part.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging supplies components on continuous carrier tape wound on a reel, suitable for automated pick-and-place assembly equipment. Cut Tape supplies components on shorter tape segments, typically for manual assembly or lower-volume production. Both formats contain identical components; packaging format selection depends on assembly process requirements and equipment compatibility.

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

A: The length and width dimensions are identical (0.024" L x 0.012" W / 0.60mm x 0.30mm). Maximum seated height shows a minor variation: RCS0603J184CS is 0.010" (0.25mm), while RC0603J184CS and RC0603F184CS are 0.010" (0.26mm). This 0.01mm difference is within standard PCB assembly tolerances and does not affect component placement or functionality.