RC2012J243CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012J243CS is a 24 kOhms ±5% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). The RC2012J243CS serves as a standard general-purpose resistor element in consumer and industrial electronic applications requiring moisture-resistant thick film construction.

Equivalent and substitute parts are identified based on matching or exceeding the electrical and mechanical specifications of the original component. Substitutes are categorized by tolerance grade and feature enhancements while maintaining package compatibility and thermal operating range.

Substiute Parts

RC2012J243CS

Samsung Electro-MechanicsIn Stock: 1195RC2012J243CS Datasheet

Current PartRFQ

RC0805JR-0724KL

YAGEOIn Stock: 21567RC0805JR-0724KL Datasheet

DirectRFQ

AC0805FR-0724KL

YAGEOIn Stock: 59043AC0805FR-0724KL Datasheet

UpgradeRFQ

CR0805-FX-2402ELF

Bourns Inc.In Stock: 30148CR0805-FX-2402ELF Datasheet

UpgradeRFQ

CRG0805F24K

TE Connectivity Passive ProductIn Stock: 56858CRG0805F24K Datasheet

UpgradeRFQ

ERJ-6ENF2402V

Panasonic Electronic ComponentsIn Stock: 43053ERJ-6ENF2402V Datasheet

UpgradeRFQ

KTR10EZPF2402

Rohm SemiconductorIn Stock: 9041KTR10EZPF2402 Datasheet

UpgradeRFQ

RC0805FR-0724KL

YAGEOIn Stock: 109380RC0805FR-0724KL Datasheet

UpgradeRFQ

RMCF0805FT24K0

Stackpole Electronics IncIn Stock: 83008RMCF0805FT24K0 Datasheet

UpgradeRFQ

CRCW080524K0FKEA

Vishay DaleIn Stock: 47069CRCW080524K0FKEA Datasheet

SimilarRFQ

CRCW080524K0FKEAHP

Vishay DaleIn Stock: 4405CRCW080524K0FKEAHP Datasheet

SimilarRFQ

RCS080524K0FKEA

Vishay DaleIn Stock: 5858RCS080524K0FKEA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC2012J243CS are classified into three categories based on electrical and mechanical compatibility:

Direct Equivalent (Tolerance ±5%): The RC0805JR-0724KL from YAGEO maintains identical tolerance (±5%) and power rating (0.125W) with matching 0805 package dimensions. This part provides direct functional equivalence with no performance trade-offs.

Upgrade Parts (Tolerance ±1%): Seven substitute parts feature improved tolerance specification (±1% versus ±5%) while maintaining the same 24 kOhms resistance, 0.125W power rating, 0805 package, and -55°C to 155°C operating range. These upgrades include:

• AC0805FR-0724KL (YAGEO) with Automotive AEC-Q200 certification
• CR0805-FX-2402ELF (Bourns Inc.)
• CRG0805F24K (TE Connectivity Passive Product)
• ERJ-6ENF2402V (Panasonic Electronic Components) with Automotive AEC-Q200 certification
• KTR10EZPF2402 (Rohm Semiconductor) with Automotive AEC-Q200 and High Voltage features
• RC0805FR-0724KL (YAGEO)
• RMCF0805FT24K0 (Stackpole Electronics Inc) with Automotive AEC-Q200 certification

Similar Parts (Tolerance ±1%, Variant Features): Two CRCW series parts from Vishay Dale provide ±1% tolerance with automotive qualification:

• CRCW080524K0FKEA: Standard 0.125W rating, 0805 package
• CRCW080524K0FKEAHP: Enhanced 0.5W power rating with pulse withstanding capability, same 0805 package

All substitute parts maintain thick film composition, RoHS3 compliance, MSL 1 rating, and identical thermal coefficient (±100ppm/°C).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No Design Changes Required): The RC0805JR-0724KL from YAGEO serves as the primary direct equivalent, matching the RC2012J243CS in tolerance (±5%), power rating (0.125W), and package specifications. Both components maintain RoHS3 compliance and MSL 1 rating. This part is suitable for applications where the original tolerance specification is acceptable and no performance enhancement is required.

For Tolerance Upgrade Applications: When circuit design permits or requires improved tolerance performance, any of the seven ±1% tolerance upgrade parts are electrically compatible. Selection among upgrade parts depends on application-specific requirements:

• General industrial applications: CR0805-FX-2402ELF (Bourns Inc.) or RC0805FR-0724KL (YAGEO) provide ±1% tolerance without additional feature requirements.

• Automotive applications: AC0805FR-0724KL, ERJ-6ENF2402V, KTR10EZPF2402, RMCF0805FT24K0, or CRCW080524K0FKEA all carry Automotive AEC-Q200 certification, meeting automotive qualification standards.

• High-voltage circuit applications: KTR10EZPF2402 from Rohm Semiconductor includes high-voltage feature designation alongside AEC-Q200 certification.

• Pulse-withstanding applications: CRCW080524K0FKEAHP provides enhanced 0.5W power rating with pulse withstanding capability, suitable for circuits experiencing transient overvoltage conditions. This part maintains 0805 package compatibility despite increased power rating.

All substitute parts maintain identical operating temperature range (-55°C to 155°C), thermal coefficient (±100ppm/°C), and RoHS3 compliance with the original component.

Frequently Asked Questions (FAQ)

Q: Can RC0805JR-0724KL directly replace RC2012J243CS without PCB layout modifications?

A: Yes. The RC0805JR-0724KL maintains identical 0805 (2012 Metric) package dimensions (2.00mm L x 1.25mm W) and footprint compatibility. Maximum seated height differs by 0.05mm (0.60mm versus 0.65mm), which does not affect PCB assembly or clearance requirements. No design changes are required.

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

A: Tolerance specification defines the maximum allowable deviation from the nominal 24 kOhms resistance value. The RC2012J243CS (±5%) allows resistance between 22.8 kOhms and 25.2 kOhms. Upgrade parts with ±1% tolerance (such as RC0805FR-0724KL) restrict resistance to 23.76 kOhms to 24.24 kOhms. Applications requiring tighter resistance control benefit from ±1% parts; general-purpose circuits typically function identically with either tolerance grade.

Q: Are automotive-qualified parts (AEC-Q200) compatible with non-automotive applications?

A: Yes. Automotive AEC-Q200 certification indicates compliance with automotive reliability and qualification standards. These parts exceed general industrial requirements and function in non-automotive applications without restriction. AEC-Q200 parts are suitable for any application accepting the original RC2012J243CS.

Q: Can CRCW080524K0FKEAHP (0.5W) replace the 0.125W original part?

A: Yes, from an electrical standpoint. The CRCW080524K0FKEAHP maintains 24 kOhms resistance, ±1% tolerance, and 0805 package compatibility. The 0.5W power rating is a performance enhancement that does not create incompatibility. However, verify that circuit design does not depend on the original 0.125W thermal dissipation characteristics. In most applications, the higher power rating presents no disadvantage.

Q: What does MSL 1 (Unlimited) moisture sensitivity level mean?

A: MSL 1 indicates the component requires no special moisture protection during storage, handling, or assembly. All listed substitute parts maintain MSL 1 rating, ensuring identical moisture sensitivity characteristics and eliminating the need for bake-out procedures or dry-pack storage.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry RoHS3 compliance certification, matching the original RC2012J243CS. This ensures compatibility with RoHS3-regulated supply chains and end-use applications.

Q: Which substitute part offers the lowest profile for space-constrained PCB designs?

A: The CRCW080524K0FKEA and CRCW080524K0FKEAHP from Vishay Dale both feature maximum seated height of 0.50mm, compared to 0.60mm to 0.70mm for other substitutes. These parts are optimal for applications requiring minimal component height while maintaining 0805 package footprint.