RCS0603J433CS Equivalent & Substitute Parts

Part Overview

The RCS0603J433CS is a 43 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 applications requiring compact form factor with anti-sulfur and moisture-resistant properties. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified based on matching electrical specifications, package dimensions, and environmental operating parameters to ensure functional equivalence in circuit applications.

Substiute Parts

RCS0603J433CS

Samsung Electro-MechanicsIn Stock: 1201RCS0603J433CS Datasheet

Current PartRFQ

RC0603F433CS

Samsung Electro-MechanicsIn Stock: 2456RC0603F433CS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RCS0603J433CS are identified based on the following criteria:

Electrical Equivalence:

• Resistance value must be 43 kOhms
• Tolerance of ±1% or tighter is acceptable as a substitute for ±5% specification
• Power rating of 0.05W (1/20W) minimum
• Temperature coefficient ±250ppm/°C maintained across all candidates

Physical Compatibility:

• Package type 0201 (0603 Metric) required for PCB footprint compatibility
• Dimensions 0.024" L x 0.012" W (0.60mm x 0.30mm) with maximum seated height 0.010" (0.25mm to 0.26mm)
• Two terminations standard

Environmental & Compliance:

• Operating temperature range -55°C ~ 125°C or wider
• RoHS3 compliance required
• MSL 1 (Unlimited) for handling flexibility
• Thick film composition for consistent performance

Packaging Format:

• Tape & Reel (TR) or Cut Tape (CT) formats acceptable depending on assembly requirements

Parameter Comparison

Engineering Selection Recommendations

RC0603F433CS as Primary Substitute:

The RC0603F433CS is functionally equivalent to the RCS0603J433CS for direct substitution in circuit applications. Both components are manufactured by Samsung Electro-Mechanics and share identical electrical specifications with the exception of tolerance rating. The substitute part features a tighter tolerance of ±1% compared to the main part's ±5%, which provides improved accuracy without introducing incompatibility.

Compliance & Certification:

Both parts maintain ROHS3 compliance and MSL 1 (Unlimited) rating, ensuring regulatory adherence and simplified handling procedures. Operating temperature ranges are identical at -55°C ~ 125°C, supporting equivalent thermal performance across all specified application environments.

Physical Compatibility:

Package dimensions and footprint are identical between the main part and substitute. Maximum seated height differs by 0.01mm (0.26mm vs 0.25mm), which is within standard PCB assembly tolerances and does not affect component placement or functionality.

Packaging Consideration:

The main part is supplied in Tape & Reel (TR) format, while the substitute is available in Cut Tape (CT) format. Selection between these packaging options depends on assembly line requirements and volume specifications rather than technical compatibility.

Frequently Asked Questions (FAQ)

Q: Can RC0603F433CS replace RCS0603J433CS in existing designs?

A: Yes. Both components share identical resistance value (43 kOhms), power rating (0.05W), package type (0201), operating temperature range (-55°C ~ 125°C), and composition (thick film). The substitute features tighter tolerance (±1% vs ±5%), which improves circuit accuracy without introducing incompatibility.

Q: What is the difference between ±5% and ±1% tolerance?

A: Tolerance defines the acceptable deviation from the nominal resistance value. A ±5% tolerance on 43 kOhms allows resistance between 40.85 kOhms and 45.15 kOhms. A ±1% tolerance restricts the range to 42.57 kOhms and 43.43 kOhms. Tighter tolerance provides improved circuit performance in precision applications.

Q: Are the physical dimensions identical?

A: Yes, both parts use the 0201 (0603 Metric) package with dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm). Maximum seated height differs by 0.01mm (0.25mm vs 0.26mm), which is within standard PCB assembly tolerances and does not affect placement or functionality.

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

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) packaging supplies components on tape segments, suitable for lower-volume or manual assembly processes. Both formats contain identical components; selection depends on assembly requirements.

Q: Do both parts have the same moisture sensitivity level?

A: Yes, both RCS0603J433CS and RC0603F433CS are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Components can be stored and handled without special desiccant packaging or time-limited exposure requirements.

Q: Are both parts RoHS3 compliant?

A: Yes, both components are ROHS3 compliant, meeting regulatory requirements for hazardous substance restrictions in electronic equipment manufacturing.