RCS2012F1244CS Equivalent & Substitute Parts

Part Overview

The RCS2012F1244CS is a 1.24 MOhm ±1% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package. This component is classified as Active product status and is designed for general-purpose applications requiring high-value resistive elements with tight tolerance specifications. The part features anti-sulfur and moisture-resistant construction, operating across a temperature range of -55°C to 155°C with a temperature coefficient of ±100ppm/°C.

Equivalent and substitute parts are identified when alternative manufacturers offer components with identical or functionally equivalent electrical specifications, mechanical dimensions, and package configurations. Substitution becomes necessary due to supply chain considerations, inventory availability, or application-specific requirements such as automotive qualification standards.

Substiute Parts

RCS2012F1244CS

Samsung Electro-MechanicsIn Stock: 1133RCS2012F1244CS Datasheet

Current PartRFQ

CRCW08051M24FKEA

Vishay DaleIn Stock: 49619CRCW08051M24FKEA Datasheet

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ERJ-6ENF1244V

Panasonic Electronic ComponentsIn Stock: 50740ERJ-6ENF1244V Datasheet

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RC0805FR-071M24L

YAGEOIn Stock: 10765RC0805FR-071M24L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RCS2012F1244CS is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Resistance value (1.24 MOhms), tolerance (±1%), and power rating (0.125W) must be identical. Temperature coefficient (±100ppm/°C) and operating temperature range (-55°C to 155°C) establish the thermal performance envelope.

Mechanical Compatibility: Package designation (0805 / 2012 Metric) and number of terminations (2) ensure physical and electrical interface compatibility. Dimensional specifications (0.079" L x 0.049" W / 2.00mm x 1.25mm) confirm footprint equivalence.

Regulatory Compliance: All substitute parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 rating, ensuring environmental and handling requirements are preserved.

Composition and Construction: Thick film construction is maintained across all substitutes. Protective features (anti-sulfur, moisture-resistant, or automotive AEC-Q200 qualification) represent functional enhancements that do not preclude substitution.

Parameter Comparison

Engineering Selection Recommendations

All four components listed satisfy the core electrical and mechanical requirements for direct substitution. Selection among these parts is determined by application-specific requirements and compliance certifications:

General-Purpose Applications: The RCS2012F1244CS (Samsung), RC0805FR-071M24L (YAGEO), CRCW08051M24FKEA (Vishay Dale), and ERJ-6ENF1244V (Panasonic) are functionally equivalent for non-automotive circuits. All maintain ROHS3 compliance and identical electrical performance.

Automotive Applications: The CRCW08051M24FKEA (Vishay Dale) and ERJ-6ENF1244V (Panasonic) carry AEC-Q200 automotive qualification, meeting industry standards for automotive-grade component reliability and performance. These parts are specified for applications requiring automotive-level quality assurance.

Height Constraints: Seated height varies across substitutes (0.020" to 0.028"). Applications with strict PCB clearance requirements should reference the specific height specification. The CRCW08051M24FKEA offers the lowest profile at 0.020" (0.50mm).

Product Status: All substitute parts maintain Active product status, ensuring continued availability and manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can CRCW08051M24FKEA or ERJ-6ENF1244V be used in place of RCS2012F1244CS in non-automotive applications?

A: Yes. All electrical parameters, package dimensions, and regulatory compliance specifications are identical. The AEC-Q200 automotive qualification present in these parts does not restrict their use in general-purpose circuits.

Q: What is the significance of the AEC-Q200 rating on substitute parts?

A: AEC-Q200 is an automotive industry qualification standard that certifies component reliability under automotive operating conditions. Parts bearing this certification meet additional quality and performance requirements. This qualification does not preclude use in non-automotive applications.

Q: Are there dimensional differences that affect PCB layout?

A: The 0805 (2012 Metric) package footprint is identical across all parts (0.079" L x 0.049" W / 2.00mm x 1.25mm). Seated height varies between 0.020" and 0.028". Applications with tight vertical clearance constraints should confirm the specific height specification of the selected part.

Q: Do all substitute parts maintain the same moisture resistance properties?

A: All parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. The RCS2012F1244CS specifies anti-sulfur and moisture-resistant construction. Substitute parts either specify equivalent moisture-resistant features or carry AEC-Q200 qualification, which includes environmental durability requirements.

Q: What is the basis for substitution compatibility?

A: Substitution is based on identical resistance value (1.24 MOhms), tolerance (±1%), power rating (0.125W), package type (0805), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and regulatory compliance (ROHS3, REACH unaffected, MSL 1).

Q: Can these parts be used interchangeably in existing designs?

A: Yes, provided the design does not impose specific height constraints or require non-automotive-grade components. All parts are electrically and mechanically equivalent within the 0805 package specification.