RC5025F1741CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F1741CS is a 1.74 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2010 (5025 Metric) package format. This component is rated for 0.667W (2/3W) power dissipation and operates across the temperature range of -55°C to 155°C. The part is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). This resistor is designed for general-purpose applications requiring moisture-resistant thick film construction. Equivalent and substitute parts are identified to provide procurement flexibility, support supply chain continuity, and accommodate specific application requirements such as automotive qualification or alternative packaging formats.

Substiute Parts

RC5025F1741CS

Samsung Electro-MechanicsIn Stock: 1136RC5025F1741CS Datasheet

Current PartRFQ

RMCF2010FT1K74

Stackpole Electronics IncIn Stock: 9080RMCF2010FT1K74 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F1741CS is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 1.74 kOhms (exact match required)
• Tolerance: ±1% (precision class must be maintained)
• Package / Case: 2010 (5025 Metric) (physical compatibility required)
• Composition: Thick Film (construction method must be identical)
• Temperature Coefficient: ±100ppm/°C (stability specification must match)
• Operating Temperature Range: -55°C to 155°C (environmental envelope must be met or exceeded)

Allowable Variation Parameters:

• Power Rating: Substitute parts may have equal or higher power dissipation capacity (0.667W or greater)
• Packaging Format: Original packaging format (-) may differ from substitute packaging (e.g., Tape & Reel)
• Manufacturer: Different manufacturers permitted provided all electrical and mechanical specifications align
• Additional Features: Substitute parts may include additional certifications (e.g., AEC-Q200 automotive qualification) without compromising base specifications
• Regulatory Compliance: Substitute parts must maintain or exceed RoHS and REACH compliance status

The RMCF2010FT1K74 manufactured by Stackpole Electronics Inc qualifies as a direct substitute based on identical resistance, tolerance, package, composition, and temperature coefficient specifications, with the allowable variation of increased power rating (0.75W vs. 0.667W) and automotive AEC-Q200 qualification.

Parameter Comparison

Engineering Selection Recommendations

RC5025F1741CS (Samsung Electro-Mechanics) is the primary specification part. Selection is appropriate for applications requiring the exact 0.667W power rating specification and Samsung manufacturer sourcing. This part maintains Active product status with full regulatory compliance (RoHS3, REACH Unaffected).

RMCF2010FT1K74 (Stackpole Electronics Inc) is a qualified substitute with the following engineering basis:

1. Electrical Equivalence: Identical resistance (1.74 kOhms), tolerance (±1%), and temperature coefficient (±100ppm/°C) ensure functional interchangeability in circuit applications.

2. Mechanical Compatibility: Identical 2010 (5025 Metric) package dimensions (0.197" L x 0.098" W) and termination count (2) ensure PCB layout compatibility. Maximum seated height difference (0.028" vs. 0.026") is within typical PCB assembly tolerances.

3. Thermal Capability: The substitute's 0.75W power rating exceeds the original 0.667W specification, providing thermal margin in applications operating at or near the original power limit.

4. Environmental Compliance: Both parts maintain identical operating temperature range (-55°C to 155°C), RoHS3 compliance, and unlimited moisture sensitivity rating (MSL 1).

5. Additional Qualification: The RMCF2010FT1K74 carries AEC-Q200 automotive qualification, making it suitable for automotive and high-reliability applications where the original part may not be specified.

6. Product Status: Both parts are Active with established supply availability.

Selection between these parts should be based on: (1) manufacturer preference or supply chain requirements, (2) automotive qualification necessity (AEC-Q200), (3) packaging format preference (bulk vs. Tape & Reel), and (4) power dissipation margin requirements.

Frequently Asked Questions (FAQ)

Q: Can RMCF2010FT1K74 be used as a direct replacement for RC5025F1741CS in all applications?

A: Yes, the RMCF2010FT1K74 is electrically and mechanically equivalent for all applications where the RC5025F1741CS is specified. The substitute maintains identical resistance (1.74 kOhms), tolerance (±1%), package (2010), composition (thick film), and temperature coefficient (±100ppm/°C). The higher power rating (0.75W vs. 0.667W) provides additional thermal capability without affecting circuit performance.

Q: What is the significance of the power rating difference (0.667W vs. 0.75W)?

A: The power rating indicates maximum continuous power dissipation capability. The substitute's 0.75W rating is higher than the original 0.667W specification, meaning it can safely dissipate more heat. In applications where the resistor operates below the original 0.667W limit, this difference is not functionally significant. In applications approaching the 0.667W limit, the substitute provides thermal margin and improved reliability.

Q: Are there any PCB layout considerations due to the height difference (0.66mm vs. 0.70mm)?

A: The maximum seated height difference of 0.04mm (0.70mm - 0.66mm) is negligible for standard PCB assembly processes. This variation falls within typical component height tolerances and does not require PCB layout modifications. Both parts are compatible with standard pick-and-place assembly equipment and reflow soldering processes.

Q: What does AEC-Q200 qualification on the substitute part mean?

A: AEC-Q200 is an automotive industry standard qualification for passive components. The RMCF2010FT1K74's AEC-Q200 rating indicates it has been tested and validated for automotive applications, including enhanced reliability testing for temperature cycling, moisture resistance, and long-term stability. This qualification is not required for general-purpose applications but is beneficial for automotive, industrial, and high-reliability environments.

Q: Can I mix RC5025F1741CS and RMCF2010FT1K74 parts in the same production batch?

A: Yes, both parts are electrically and mechanically equivalent and can be used interchangeably in the same circuit design and PCB layout. However, from a manufacturing and traceability perspective, it is recommended to maintain consistent part sourcing within a single production batch to simplify documentation and supply chain management.

Q: What is the difference between the packaging formats (bulk vs. Tape & Reel)?

A: The RC5025F1741CS is supplied in bulk packaging format (indicated by "-"), while the RMCF2010FT1K74 is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated assembly processes and provides better component protection during storage and handling. Bulk packaging may be used for manual assembly or smaller volume applications. The electrical and mechanical specifications are identical regardless of packaging format.

Q: Are both parts RoHS3 compliant?

A: Yes, both the RC5025F1741CS and RMCF2010FT1K74 are RoHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic components in the European Union and other regulated markets.