RC5025F66R5CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F66R5CS is a 66.5 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated for 0.667W (2/3W) power dissipation in a 2010 (5025 Metric) package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, supply chain considerations, or application-specific certifications.

Substiute Parts

RC5025F66R5CS

Samsung Electro-MechanicsIn Stock: 781RC5025F66R5CS Datasheet

Current PartRFQ

RMCF2010FT66R5

Stackpole Electronics IncIn Stock: 9061RMCF2010FT66R5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F66R5CS is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 66.5 Ohms (exact match required)
• Tolerance: ±1% (substitute tolerance must not exceed this specification)
• Package designation: 2010 (5025 Metric) (physical and electrical footprint compatibility)
• Composition: Thick Film (ensures consistent electrical behavior)
• Temperature Coefficient: ±100ppm/°C (temperature stability requirement)
• Operating Temperature Range: -55°C ~ 155°C (environmental operating limits)
• RoHS3 Compliance: Required for regulatory conformance

Allowable Variation:

• Power Rating: Substitute must equal or exceed 0.667W (higher power rating is acceptable and provides design margin)
• Packaging Format: Original part uses bulk packaging; substitute may use Tape & Reel (TR) format without affecting electrical or mechanical compatibility

The identified substitute RMCF2010FT66R5 meets all mandatory parameters while providing enhanced power rating (0.75W) and automotive-grade certification (AEC-Q200).

Parameter Comparison

Engineering Selection Recommendations

Primary Part: RC5025F66R5CS

• Active product status with established supply chain
• Samsung Electro-Mechanics manufacturing
• RoHS3 compliant and MSL 1 rated
• Suitable for general industrial and consumer applications

Substitute Part: RMCF2010FT66R5

• Active product status with higher inventory availability (8989 Pcs vs 696 Pcs)
• Stackpole Electronics Inc manufacturing
• RoHS3 compliant and MSL 1 rated
• AEC-Q200 automotive qualification provides additional reliability assurance
• Enhanced power rating (0.75W vs 0.667W) offers design margin
• Tape & Reel packaging suitable for automated assembly processes
• Identical electrical and mechanical specifications for direct substitution

Both parts satisfy all regulatory requirements (RoHS3, REACH Unaffected, EAR99 classification) and are suitable for applications requiring 66.5 Ohm ±1% resistors in 2010 package format with -55°C to 155°C operating range.

Frequently Asked Questions (FAQ)

Q: Can RMCF2010FT66R5 be used as a direct replacement for RC5025F66R5CS?

A: Yes. Both parts share identical resistance value (66.5 Ohms), tolerance (±1%), package type (2010/5025 Metric), composition (Thick Film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute provides equal or superior performance with higher power rating (0.75W vs 0.667W).

Q: What is the significance of the higher power rating in the substitute part?

A: The RMCF2010FT66R5 is rated for 0.75W compared to the main part's 0.667W. This higher rating provides additional thermal margin and allows the component to dissipate more power without exceeding temperature limits. Applications requiring the full 0.667W specification will operate with increased safety margin using the substitute.

Q: Are there packaging differences between these parts?

A: The RC5025F66R5CS is supplied in bulk packaging, while the RMCF2010FT66R5 is supplied in Tape & Reel (TR) format. This difference affects handling and assembly processes but does not impact electrical or mechanical compatibility. Tape & Reel format is standard for automated pick-and-place assembly.

Q: Does the AEC-Q200 certification on the substitute part affect compatibility?

A: No. AEC-Q200 is an automotive-grade qualification that indicates additional reliability testing and quality assurance. This certification does not alter electrical specifications and is compatible with all applications requiring the base specification. It represents an enhancement rather than a modification.

Q: What is the maximum seated height difference between these parts?

A: The main part has a maximum seated height of 0.66mm, while the substitute has 0.70mm. This 0.04mm difference is within standard PCB assembly tolerances and does not affect component placement or functionality.

Q: Are both parts RoHS3 compliant?

A: Yes. Both RC5025F66R5CS and RMCF2010FT66R5 are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting current regulatory requirements for lead-free and hazardous substance restrictions.