RCS0603J271CS Equivalent & Substitute Parts

Part Overview

The RCS0603J271CS is a 270 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 3046 units in stock. The part features anti-sulfur and moisture-resistant construction, making it suitable for applications requiring environmental protection in compact form factors.

Substitute parts become necessary when the primary manufacturer experiences supply constraints, when design requirements allow for alternative qualified sources, or when inventory availability necessitates cross-compatible alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

RCS0603J271CS

Samsung Electro-MechanicsIn Stock: 3101RCS0603J271CS Datasheet

Current PartRFQ

MCR006YRTJ271

Rohm SemiconductorIn Stock: 1445MCR006YRTJ271 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS0603J271CS is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 270 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 Compliant status (required)
• Moisture Sensitivity Level 1 (required)
• REACH Unaffected status (required)

The MCR006YRTJ271 manufactured by Rohm Semiconductor meets all specified electrical, mechanical, and compliance requirements and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: RCS0603J271CS

The RCS0603J271CS remains the preferred selection when available. This Samsung Electro-Mechanics component is currently active in production with substantial inventory (3046 units in stock) and includes anti-sulfur and moisture-resistant features. The part maintains full ROHS3 compliance and MSL Level 1 rating, suitable for unlimited moisture exposure conditions.

Substitute Part: MCR006YRTJ271

The MCR006YRTJ271 from Rohm Semiconductor is electrically and mechanically equivalent to the RCS0603J271CS. However, this part is discontinued at DiGi Electronics, indicating limited future availability. Current inventory stands at 1417 units. This substitute is appropriate for applications where the primary part is unavailable and existing stock can be secured through alternative distribution channels. The part maintains identical ROHS3 and REACH compliance certifications.

Selection Criteria:

• Use RCS0603J271CS as the first choice due to active production status and superior inventory levels
• Use MCR006YRTJ271 only when RCS0603J271CS is unavailable and existing stock is accessible
• Both parts satisfy identical electrical performance, mechanical fit, and regulatory requirements
• No performance degradation occurs when substituting between these parts within specified operating parameters

Frequently Asked Questions (FAQ)

Q: Can MCR006YRTJ271 be used as a direct replacement for RCS0603J271CS?

A: Yes. The MCR006YRTJ271 meets all electrical specifications (270 Ohms ±5%, 0.05W, ±250ppm/°C, -55°C ~ 125°C), mechanical requirements (0201 package, identical dimensions and height), and compliance certifications (ROHS3, MSL 1, REACH Unaffected). Direct substitution is permissible without circuit modification.

Q: What is the difference between these two parts?

A: The parts are electrically and mechanically identical. The primary differences are manufacturer (Samsung vs. Rohm), product status (active vs. discontinued), and current inventory availability. The RCS0603J271CS is recommended as the primary choice due to active production status.

Q: Are there any package compatibility issues?

A: No. Both parts use the 0201 (0603 Metric) package with identical physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and maximum seated height (0.010" / 0.26mm). PCB footprints and assembly processes are interchangeable.

Q: Do these parts have different environmental ratings?

A: No. Both parts carry identical environmental certifications: ROHS3 Compliant, MSL Level 1 (Unlimited moisture exposure), and REACH Unaffected status. Operating temperature ranges are identical (-55°C ~ 125°C).

Q: Why is MCR006YRTJ271 discontinued?

A: The MCR006YRTJ271 is discontinued at DiGi Electronics, indicating that this distributor no longer carries the part. This does not necessarily reflect discontinuation by Rohm Semiconductor, but rather a distribution decision. Availability through alternative channels may exist.

Q: Can I mix these parts in the same production run?

A: Yes. Since both parts are electrically and mechanically equivalent with identical specifications and compliance ratings, they can be used interchangeably within the same assembly without performance variation or reliability concerns.