RC5025F681CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F681CS is a 680 Ohm ±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) continuous power dissipation and features moisture-resistant construction suitable for general industrial and commercial applications. The part maintains Active product status with 946 units currently in stock.

Equivalent and substitute parts are identified to address supply chain requirements, inventory availability, or application-specific performance needs while maintaining electrical and mechanical compatibility within the 2010 package class.

Substiute Parts

RC5025F681CS

Samsung Electro-MechanicsIn Stock: 979RC5025F681CS Datasheet

Current PartRFQ

RC2010FK-07680RL

YAGEOIn Stock: 9204RC2010FK-07680RL Datasheet

UpgradeRFQ

ERJ-12SF6800U

Panasonic Electronic ComponentsIn Stock: 13896ERJ-12SF6800U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F681CS is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Resistance value: 680 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Package format: 2010 (5025 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C to 155°C (exact match or superior range required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match or superior required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

Secondary Consideration:

• Power Rating: Substitute parts rated at 0.75W (3/4W) or higher are acceptable as they provide equal or greater power dissipation capability within the same physical package footprint.

Identified substitutes meet all primary criteria and maintain full electrical and mechanical compatibility with the original RC5025F681CS specification.

Parameter Comparison

Engineering Selection Recommendations

RC2010FK-07680RL (YAGEO) - Upgrade Substitute:

The RC2010FK-07680RL is the primary recommended substitute for the RC5025F681CS. This part maintains Active product status and provides identical electrical specifications with increased power rating (0.75W versus 0.667W). The higher power rating offers improved thermal margin within the same 2010 package footprint. Physical dimensions and height are equivalent, ensuring direct PCB layout compatibility. ROHS3 compliance and MSL 1 rating match the original specification. Tape & Reel packaging is standard for production volume applications.

ERJ-12SF6800U (Panasonic) - Alternative Substitute:

The ERJ-12SF6800U is an alternative substitute with identical electrical parameters and equivalent physical dimensions. This part carries Automotive AEC-Q200 qualification, indicating enhanced reliability screening and qualification for automotive-grade applications. However, the product status is listed as "Not For New Designs," restricting its use to legacy system support or replacement applications only. The seated height is marginally higher (0.70mm versus 0.66mm), requiring verification of PCB clearance in space-constrained layouts. This substitute is suitable only when automotive-grade qualification is required or when legacy component continuity is necessary.

Frequently Asked Questions (FAQ)

Q: Can RC2010FK-07680RL (YAGEO) be used as a direct replacement for RC5025F681CS (Samsung)?

A: Yes. The RC2010FK-07680RL meets all primary substitution criteria: identical 680 Ohm resistance, ±1% tolerance, 2010 package format, thick film composition, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, MSL 1 rating, and ROHS3 compliance. The increased power rating (0.75W versus 0.667W) provides additional thermal capability within the same package. Physical dimensions are equivalent, ensuring PCB compatibility.

Q: What is the difference between the 0.667W and 0.75W power ratings?

A: Both substitute parts are rated for higher power dissipation than the original RC5025F681CS. The 0.75W rating provides approximately 12% additional power handling capacity. In applications where the RC5025F681CS operates below its rated power, the higher-rated substitutes offer improved thermal margin and extended component life. The physical package dimensions remain identical, so no PCB layout changes are required.

Q: Why is ERJ-12SF6800U marked "Not For New Designs"?

A: The "Not For New Designs" status indicates that Panasonic has designated this part for legacy support and replacement applications only. New product designs should utilize the RC2010FK-07680RL (YAGEO) or equivalent active-status alternatives. The ERJ-12SF6800U remains available for existing system maintenance and repair where component continuity is required.

Q: Are there packaging differences between these substitutes?

A: The RC5025F681CS is supplied in standard packaging format. Both RC2010FK-07680RL and ERJ-12SF6800U are supplied in Tape & Reel (TR) format, which is standard for production volume assembly. Tape & Reel packaging is compatible with automated pick-and-place equipment and offers no functional difference from bulk packaging in terms of component performance or reliability.

Q: What is the significance of AEC-Q200 qualification on the ERJ-12SF6800U?

A: AEC-Q200 is an automotive industry qualification standard that specifies enhanced reliability testing, temperature cycling, and failure rate screening. Components with AEC-Q200 qualification are suitable for automotive and high-reliability applications. The RC5025F681CS and RC2010FK-07680RL do not carry this designation. Use ERJ-12SF6800U only when automotive-grade qualification is explicitly required by application specifications.

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

A: Yes, with one exception. The RC2010FK-07680RL and RC5025F681CS are fully interchangeable with no design modifications required. The ERJ-12SF6800U has a maximum seated height of 0.70mm compared to 0.66mm for the original part. Verify PCB clearance in designs with tight vertical spacing constraints before substituting ERJ-12SF6800U.

Q: What compliance certifications apply to all three parts?

A: All three parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. All carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no special moisture protection requirements during storage or handling. HTSUS classification is identical across all parts (8533.21.0030).