RC5025F8663CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F8663CS is a 866 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated for 0.667W (2/3W) power dissipation in a 2010 (5025 Metric) surface mount 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 performance and mechanical compatibility can be maintained across the critical parameters that define this resistor category. The primary substitute ERJ-12SF8663U from Panasonic Electronic Components carries a higher power rating (0.75W) and automotive-grade qualification, though it is designated as Not For New Designs.

Substiute Parts

RC5025F8663CS

Samsung Electro-MechanicsIn Stock: 1034RC5025F8663CS Datasheet

Current PartRFQ

ERJ-12SF8663U

Panasonic Electronic ComponentsIn Stock: 7737ERJ-12SF8663U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F8663CS is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 866 kOhms (exact match required)
• Tolerance: ±1% (precision class must be maintained)
• Package: 2010 (5025 Metric) (physical footprint compatibility)
• Composition: Thick Film (manufacturing process)
• Temperature Coefficient: ±100ppm/°C (stability specification)
• Operating Temperature Range: -55°C to 155°C (environmental envelope)
• Moisture Sensitivity Level: MSL 1 (handling compatibility)
• RoHS Status: ROHS3 Compliant (regulatory alignment)

Allowable Variation Parameters:

• Power Rating: Substitutes with equal or higher power rating (0.667W minimum) are acceptable, as higher ratings provide equivalent or superior thermal performance
• Packaging Format: Tape & Reel (TR) is compatible with bulk or alternative packaging formats for the same component footprint
• Product Status: Active or Not For New Designs status does not disqualify substitution based on electrical and mechanical parameters

The ERJ-12SF8663U meets all mandatory parameters and exceeds the power rating specification at 0.75W, making it a valid electrical and mechanical substitute despite its Not For New Designs designation.

Parameter Comparison

Engineering Selection Recommendations

Primary Component (RC5025F8663CS): The Samsung Electro-Mechanics RC5025F8663CS is the specified component with Active product status, indicating ongoing manufacturer support and availability. This part is suitable for new designs and production applications requiring 866 kOhms ±1% resistance with 0.667W power dissipation in a 2010 package format.

Substitute Component (ERJ-12SF8663U): The Panasonic ERJ-12SF8663U provides electrical and mechanical equivalence with a higher power rating (0.75W) and automotive-grade AEC-Q200 qualification. This part is designated as Not For New Designs, indicating that Panasonic is not recommending it for new product development. However, it remains a valid substitute for existing designs, maintenance, or applications where the higher power rating and automotive qualification provide additional margin or compliance benefit.

Selection between these components should be based on:

• Availability and lead time requirements
• Existing supply chain qualification
• Automotive or industrial application requirements (AEC-Q200 qualification available with ERJ-12SF8663U)
• Power dissipation margin requirements (0.75W vs. 0.667W)

Frequently Asked Questions (FAQ)

Q: Can ERJ-12SF8663U be used as a direct replacement for RC5025F8663CS?

A: Yes. Both components share identical resistance value (866 kOhms), tolerance (±1%), package footprint (2010/5025 Metric), composition (Thick Film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and regulatory compliance (ROHS3, REACH Unaffected). The ERJ-12SF8663U has a higher power rating (0.75W vs. 0.667W), which is compatible with applications designed for the lower rating.

Q: What is the significance of the "Not For New Designs" status on ERJ-12SF8663U?

A: This designation indicates that Panasonic is not actively promoting this part for new product development. However, it does not affect the electrical or mechanical compatibility of the component. The part remains available and suitable for replacement, maintenance, or applications where existing qualification has been established.

Q: Are there dimensional compatibility concerns between these two parts?

A: Both parts conform to the 2010 (5025 Metric) package standard with identical length (0.197" / 5.00mm) and width (0.098" / 2.50mm). The seated height differs slightly (0.026" vs. 0.028"), a variance of 0.002" (0.04mm) that is within standard PCB assembly tolerances and does not affect mechanical compatibility or mounting.

Q: Does the higher power rating of ERJ-12SF8663U affect circuit performance?

A: No. A higher power rating indicates greater thermal dissipation capacity and does not alter electrical performance. The component will operate identically in the circuit while providing additional thermal margin. This is beneficial in applications with elevated ambient temperatures or higher current conditions.

Q: What packaging formats are available for these components?

A: RC5025F8663CS is available in standard packaging formats (specific format not detailed in provided specifications). ERJ-12SF8663U is supplied in Tape & Reel (TR) format. Both formats are compatible with standard SMD assembly processes.

Q: Are there any compliance or certification differences?

A: ERJ-12SF8663U carries AEC-Q200 automotive qualification, which RC5025F8663CS does not specify. Both components are ROHS3 compliant and REACH Unaffected. The automotive qualification of the Panasonic part provides additional assurance for applications requiring automotive-grade component reliability.