RC5025F6490CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F6490CS is a 649 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.667W (2/3W) in a 2010 (5025 Metric) package. This component is classified as Active product status with moisture-resistant construction and unlimited moisture sensitivity level (MSL 1). The part is RoHS3 compliant and REACH unaffected, suitable for general industrial and commercial applications requiring precision resistive elements with stable temperature characteristics across the -55°C to 155°C operating range.

Equivalent and substitute parts are identified based on matching electrical specifications (649 Ohms ±1% resistance and tolerance), identical package geometry (2010/5025 Metric), compatible thermal performance (±100ppm/°C temperature coefficient), and overlapping operating temperature ranges. Substitutes may include higher power ratings or automotive-grade certifications while maintaining core electrical and mechanical compatibility.

Substiute Parts

RC5025F6490CS

Samsung Electro-MechanicsIn Stock: 1061RC5025F6490CS Datasheet

Current PartRFQ

CRCW2010649RFKEF

Vishay DaleIn Stock: 12679CRCW2010649RFKEF Datasheet

SimilarRFQ

ERJ-12SF6490U

Panasonic Electronic ComponentsIn Stock: 5076ERJ-12SF6490U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC5025F6490CS is based on the following allowed parameters:

Electrical Matching Criteria:

• Resistance value must be 649 Ohms
• Tolerance must be ±1% or tighter
• Power rating must be equal to or greater than 0.667W
• Temperature coefficient must be ±100ppm/°C or better (lower absolute value)
• Operating temperature range must encompass -55°C to 155°C

Mechanical Matching Criteria:

• Package must be 2010 (5025 Metric) for PCB footprint compatibility
• Composition must be thick film
• Number of terminations must be 2

Compliance Matching Criteria:

• RoHS3 compliance required
• MSL 1 (Unlimited) acceptable
• REACH unaffected status acceptable

Identified Substitute Parts:

Two substitute parts meet all substitution criteria with the following distinctions:

1. CRCW2010649RFKEF (Vishay Dale) - Higher power rating (0.75W), automotive AEC-Q200 certified, active product status
2. ERJ-12SF6490U (Panasonic Electronic Components) - Higher power rating (0.75W), automotive AEC-Q200 certified, not for new designs status

Both substitutes exceed the power requirement while maintaining all other electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CRCW2010649RFKEF (Vishay Dale)

The CRCW2010649RFKEF is the preferred substitute for the RC5025F6490CS. This part maintains active product status, ensuring continued availability and manufacturer support. The higher power rating (0.75W versus 0.667W) provides additional thermal margin without affecting circuit performance. AEC-Q200 automotive certification indicates enhanced reliability testing and quality assurance. The identical package geometry (2010/5025 Metric) and electrical specifications (649 Ohms ±1%, ±100ppm/°C, -55°C to 155°C) ensure direct PCB compatibility and functional equivalence.

Secondary Substitute: ERJ-12SF6490U (Panasonic Electronic Components)

The ERJ-12SF6490U meets all electrical and mechanical substitution criteria with equivalent power rating upgrade (0.75W) and AEC-Q200 certification. However, this part carries "Not For New Designs" product status, indicating Panasonic has discontinued active development and may limit long-term availability. This substitute is suitable only for legacy system maintenance, repair, or applications where existing design validation has already been completed with this component.

Selection Basis:

• Both substitutes provide equal or superior power dissipation capability
• Both maintain identical electrical performance within specified tolerances
• Both comply with RoHS3 and REACH requirements
• CRCW2010649RFKEF is recommended for new designs due to active product status
• ERJ-12SF6490U is acceptable for existing designs already qualified with this part

Frequently Asked Questions (FAQ)

Q1: Can CRCW2010649RFKEF or ERJ-12SF6490U be used as direct replacements for RC5025F6490CS on existing PCBs?

A: Yes. Both substitute parts are mechanically and electrically compatible. The 2010 (5025 Metric) package geometry is identical, and the footprint spacing matches exactly. The higher power ratings (0.75W versus 0.667W) do not affect circuit operation and provide additional thermal safety margin.

Q2: What is the significance of the higher power rating in the substitute parts?

A: The substitute parts are rated at 0.75W (3/4W) compared to the original 0.667W (2/3W). This higher rating indicates greater power dissipation capability and thermal stability. In circuit applications, the substitute will operate at lower junction temperature under identical load conditions, extending component life and improving reliability margins.

Q3: Why does ERJ-12SF6490U have "Not For New Designs" status?

A: "Not For New Designs" status indicates that Panasonic has transitioned this product line and is no longer recommending it for new circuit designs. While existing inventory remains available and the part functions identically to the original, long-term supply cannot be guaranteed. This status does not affect performance or reliability for existing applications.

Q4: Are there any height differences that could affect PCB assembly?

A: The original RC5025F6490CS has a maximum seated height of 0.026" (0.66mm), while both substitutes have a maximum seated height of 0.028" (0.70mm). This 0.002" (0.04mm) difference is negligible for standard PCB assembly processes and does not affect component placement, soldering, or clearance in typical applications.

Q5: Do the substitute parts require different handling or storage procedures?

A: No. All three parts share identical Moisture Sensitivity Level (MSL 1 - Unlimited), meaning they do not require special moisture-controlled storage or baking procedures prior to soldering. Standard handling practices for surface-mount components apply equally to all three parts.

Q6: Are the substitute parts suitable for automotive applications?

A: Both CRCW2010649RFKEF and ERJ-12SF6490U carry AEC-Q200 automotive certification, indicating they meet automotive industry reliability and quality standards. The original RC5025F6490CS does not specify automotive certification. If automotive qualification is required, the substitute parts provide this additional assurance.

Q7: What is the temperature coefficient significance for these parts?

A: All three parts share an identical temperature coefficient of ±100ppm/°C. This specification defines how the resistance value changes across the operating temperature range (-55°C to 155°C). The matching coefficient ensures that resistance drift characteristics are identical across all three parts, maintaining circuit performance consistency.

Q8: Can these parts be used interchangeably in the same design revision?

A: Yes, within the constraints of product status. CRCW2010649RFKEF can be substituted for RC5025F6490CS in any application. ERJ-12SF6490U can be used in existing designs already qualified with this part, but should not be selected for new designs due to its discontinued status.