RC0603J435CS Equivalent & Substitute Parts

Part Overview

The RC0603J435CS is a 4.3 MOhms ±5% chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.05W (1/20W) power dissipation in a 0201 (0603 Metric) package. This thick film, moisture-resistant component operates across -55°C to 125°C and is ROHS3 compliant with MSL 1 rating. The part is currently active in production with 729 pieces available in stock. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental compliance requirements.

Substiute Parts

RC0603J435CS

Samsung Electro-MechanicsIn Stock: 788RC0603J435CS Datasheet

Current PartRFQ

MCR006YRTJ435

Rohm SemiconductorIn Stock: 14810MCR006YRTJ435 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC0603J435CS is determined by the following critical parameters:

Electrical Specifications: Resistance value (4.3 MOhms), tolerance (±5%), and power rating (0.05W) must be identical. Temperature coefficient (±250ppm/°C) and operating temperature range (-55°C ~ 125°C) establish thermal performance boundaries.

Mechanical Compatibility: Package type (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W), and number of terminations (2) must match to ensure PCB footprint compatibility.

Environmental & Compliance Requirements: RoHS3 compliance, MSL 1 rating, and REACH unaffected status are mandatory for equivalent substitution in regulated applications.

Composition: Thick film construction is the specified technology for this application.

The MCR006YRTJ435 manufactured by Rohm Semiconductor meets all critical electrical and mechanical parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: RC0603J435CS (Samsung Electro-Mechanics) is the specified component with active product status and 729 pieces in current inventory. This part maintains full ROHS3 compliance and MSL 1 rating suitable for unlimited moisture exposure applications.

Substitute Selection: MCR006YRTJ435 (Rohm Semiconductor) provides electrical and mechanical equivalence with identical resistance, tolerance, power rating, and package specifications. This part is ROHS3 compliant and carries MSL 1 rating. However, product status is listed as discontinued at DiGi Electronics, which may affect long-term availability. The seated height specification differs marginally (0.26mm vs. 0.25mm), remaining within acceptable PCB assembly tolerances for 0201 packages.

Compliance Status: Both parts satisfy ROHS3, REACH unaffected, and EAR99 export classification requirements, making either suitable for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can MCR006YRTJ435 be used as a direct replacement for RC0603J435CS?

A: Yes. Both parts share identical electrical specifications (4.3 MOhms ±5%, 0.05W), composition (thick film), package type (0201 / 0603 Metric), and physical dimensions (0.024" L x 0.012" W). Compliance certifications (ROHS3, MSL 1, REACH unaffected) are equivalent. The 0.01mm difference in seated height (0.26mm vs. 0.25mm) is within standard PCB assembly tolerances for this package class.

Q: What are the critical parameters for substitution?

A: Substitution requires matching: resistance value (4.3 MOhms), tolerance (±5%), power rating (0.05W), package type (0201), physical dimensions, composition (thick film), temperature coefficient (±250ppm/°C), operating temperature range (-55°C ~ 125°C), and compliance status (ROHS3, MSL 1).

Q: Does the packaging format affect substitution eligibility?

A: Packaging format (Tape & Reel vs. Cut Tape) does not affect electrical or mechanical compatibility. RC0603J435CS is supplied in Tape & Reel format, while MCR006YRTJ435 is supplied in Cut Tape format. Both formats are compatible with standard PCB assembly equipment; format selection depends on production volume and handling requirements.

Q: What is the significance of MSL 1 rating for both parts?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture bake-out requirements. Both RC0603J435CS and MCR006YRTJ435 carry this rating, eliminating moisture-related handling constraints during storage and assembly.

Q: Are there any environmental compliance differences between the two parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes. Both carry identical HTSUS code (8533.21.0030), indicating equivalent tariff classification.