RCS0603J430CS Equivalent & Substitute Parts

Part Overview

The RCS0603J430CS is a 43 Ohm ±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 currently active in production with 2531 pieces available in new original stock. The part features anti-sulfur and moisture-resistant construction, making it suitable for applications requiring environmental protection in compact form factors.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

RCS0603J430CS

Samsung Electro-MechanicsIn Stock: 2625RCS0603J430CS Datasheet

Current PartRFQ

MCR006YRTJ430

Rohm SemiconductorIn Stock: 11920MCR006YRTJ430 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS0603J430CS is determined by strict alignment of the following critical parameters:

Electrical Parameters:

• Resistance value: 43 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±250ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 125°C (exact match required)

Mechanical Parameters:

• Package type: 0201 (0603 Metric) (exact match required)
• Physical dimensions: 0.024" L x 0.012" W / 0.60mm x 0.30mm (exact match required)
• Maximum seated height: 0.010" (0.26mm) (exact match required)

Compliance Parameters:

• RoHS3 Compliance (required)
• Moisture Sensitivity Level 1 (required)
• REACH Unaffected status (required)

The MCR006YRTJ430 manufactured by Rohm Semiconductor meets all specified criteria and qualifies as a direct electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

The MCR006YRTJ430 from Rohm Semiconductor is electrically and mechanically equivalent to the RCS0603J430CS. Both components satisfy identical specifications across resistance, tolerance, power rating, package dimensions, temperature performance, and regulatory compliance (ROHS3, MSL 1, REACH Unaffected).

The primary distinction is product status: the RCS0603J430CS remains in active production with 2531 pieces currently in stock, while the MCR006YRTJ430 is discontinued at DiGi Electronics with 11848 pieces available. Selection between these parts should be based on supply chain requirements, lead time considerations, and long-term availability needs for the application.

Both components are suitable for direct substitution in circuit designs where the 43 Ohm ±5% 0.05W 0201 package specification is required.

Frequently Asked Questions (FAQ)

Q: Can the MCR006YRTJ430 be used as a direct replacement for the RCS0603J430CS?

A: Yes. The MCR006YRTJ430 meets all electrical and mechanical specifications of the RCS0603J430CS, including resistance value, tolerance, power rating, package dimensions, temperature coefficient, operating temperature range, and compliance certifications. Direct substitution is supported without circuit modification.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution requires exact matching of: resistance value (43 Ohms), tolerance (±5%), power rating (0.05W), package type (0201), physical dimensions (0.024" x 0.012"), temperature coefficient (±250ppm/°C), operating temperature range (-55°C ~ 125°C), and compliance status (ROHS3, MSL 1, REACH Unaffected).

Q: Are there differences in environmental protection between these parts?

A: The RCS0603J430CS specifies anti-sulfur and moisture-resistant features. The MCR006YRTJ430 datasheet does not explicitly list these features in the provided parameters. Both parts maintain MSL 1 (Unlimited) moisture sensitivity rating and ROHS3 compliance.

Q: What is the significance of the product status difference?

A: The RCS0603J430CS is active in production, while the MCR006YRTJ430 is discontinued at DiGi Electronics. For new designs or long-term production requirements, the active RCS0603J430CS is recommended. The MCR006YRTJ430 may be suitable for legacy system repairs or short-term applications where existing inventory is available.

Q: Are packaging options different between these parts?

A: The RCS0603J430CS is supplied in Cut Tape (CT) packaging. The MCR006YRTJ430 is available in both Cut Tape (CT) and Digi-Reel® packaging options. Both use identical 0201 (0603 Metric) component packages.