RC3225F6493CS Equivalent & Substitute Parts

Part Overview

The RC3225F6493CS is a 649 kOhm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.333W (1/3W) in a 1210 (3225 Metric) package. This component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Substiute Parts

RC3225F6493CS

Samsung Electro-MechanicsIn Stock: 1044RC3225F6493CS Datasheet

Current PartRFQ

ERJ-14NF6493U

Panasonic Electronic ComponentsIn Stock: 6089ERJ-14NF6493U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F6493CS is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 649 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package: 1210 (3225 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)
• Number of Terminations: 2 (exact match required)

Allowable Variation Parameters:

• Power Rating: Equal to or greater than 0.333W
• Physical dimensions: Within standard 1210 package tolerances
• Moisture Sensitivity Level: MSL 1 or equivalent
• Compliance certifications: May differ based on application requirements

The identified substitute ERJ-14NF6493U meets all mandatory matching parameters. The power rating of 0.5W (1/2W) exceeds the minimum requirement of 0.333W, making it electrically compatible for applications where the RC3225F6493CS is specified.

Parameter Comparison

Engineering Selection Recommendations

RC3225F6493CS (Primary Selection):

• Active product status ensures ongoing manufacturer support and availability
• ROHS3 compliance meets current environmental regulations
• Moisture Resistant feature provides standard environmental protection
• Recommended for new designs and applications requiring long-term component availability

ERJ-14NF6493U (Substitute Selection):

• Electrical and mechanical parameters are fully compatible with RC3225F6493CS
• Higher power rating (0.5W vs. 0.333W) provides additional thermal margin
• Product status is "Not For New Designs," indicating limited future availability
• RoHS non-compliant status may restrict use in regulated applications
• Automotive AEC-Q200 qualification provides enhanced reliability for automotive applications
• Suitable for legacy system maintenance, repair, or applications where automotive-grade components are required

Compliance Considerations:

• RC3225F6493CS is preferred for applications requiring ROHS3 compliance
• ERJ-14NF6493U is suitable only for applications where RoHS non-compliance is acceptable
• Both components meet REACH Unaffected and EAR99 export classification requirements

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF6493U directly replace RC3225F6493CS in all applications?

A: ERJ-14NF6493U is electrically and mechanically compatible with RC3225F6493CS. However, compliance requirements must be evaluated. RC3225F6493CS is ROHS3 compliant while ERJ-14NF6493U is RoHS non-compliant. Substitution is valid only when RoHS compliance is not a design requirement.

Q: What is the significance of the higher power rating on ERJ-14NF6493U?

A: The ERJ-14NF6493U is rated at 0.5W (1/2W) compared to the RC3225F6493CS at 0.333W (1/3W). A higher power rating indicates greater thermal dissipation capability. This substitution is valid because the substitute can handle equal or greater power levels than the original specification.

Q: Are the physical dimensions identical between these two parts?

A: Physical dimensions are within standard 1210 package tolerances. RC3225F6493CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with 0.026" max height. ERJ-14NF6493U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with 0.028" max height. These minor variations are within acceptable mechanical compatibility for 1210 package applications.

Q: Why is ERJ-14NF6493U marked "Not For New Designs"?

A: "Not For New Designs" status indicates the manufacturer is phasing out this component. While it remains available for existing applications and repairs, it is not recommended for new product development. RC3225F6493CS, with Active status, is the preferred choice for new designs.

Q: What does Moisture Sensitivity Level 1 mean?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. Both RC3225F6493CS and ERJ-14NF6493U carry this rating, eliminating moisture-related compatibility concerns.

Q: Are there any temperature-related differences between these resistors?

A: Both components operate across the identical temperature range of -55°C to 155°C with matching temperature coefficient of ±100ppm/°C. No temperature-related substitution limitations exist.

Q: What packaging format is ERJ-14NF6493U supplied in?

A: ERJ-14NF6493U is supplied in Tape & Reel (TR) format, suitable for automated assembly processes. RC3225F6493CS packaging format is not specified in the provided data.