RC3225F1431CS Equivalent & Substitute Parts

Part Overview

The RC3225F1431CS is a 1.43 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package format. This component is rated for 0.333W (1/3W) power dissipation and operates across the temperature range of -55°C to 155°C. The part maintains Active product status and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Equivalent and substitute parts are identified when components share identical or compatible electrical specifications, mechanical dimensions, and compliance certifications. Substitution becomes necessary when the primary part experiences supply constraints, inventory limitations, or when design requirements permit higher power ratings or alternative qualification standards.

Substiute Parts

RC3225F1431CS

Samsung Electro-MechanicsIn Stock: 872RC3225F1431CS Datasheet

Current PartRFQ

ERJ-14NF1431U

Panasonic Electronic ComponentsIn Stock: 8918ERJ-14NF1431U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC3225F1431CS is based on the following critical parameters that must remain constant or compatible:

Mandatory Matching Parameters:

• Resistance value: 1.43 kOhms
• Tolerance: ±1%
• Package format: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• RoHS3 Compliance
• MSL 1 rating

Compatible Variation Parameters:

• Power rating may be equal or higher (0.333W minimum)
• Physical dimensions may vary within package specification tolerances
• Packaging format (bulk vs. Tape & Reel) does not affect electrical compatibility
• Product status and qualification standards (automotive AEC-Q200) do not prevent substitution

The ERJ-14NF1431U from Panasonic Electronic Components qualifies as a substitute part. It maintains identical resistance, tolerance, package, composition, and temperature specifications while offering a higher power rating of 0.5W (1/2W). The part carries AEC-Q200 automotive qualification and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

RC3225F1431CS Selection Criteria: The Samsung RC3225F1431CS is appropriate for applications where Active product status and ongoing manufacturer support are required. This part is suitable for new design implementations and provides standard thick film resistor performance with unlimited moisture sensitivity tolerance.

ERJ-14NF1431U Selection Criteria: The Panasonic ERJ-14NF1431U serves as a functional substitute when higher power dissipation capability (0.5W vs. 0.333W) is beneficial or when AEC-Q200 automotive qualification is required. Although marked as "Not For New Designs," this part maintains full electrical and mechanical compatibility with the RC3225F1431CS and remains suitable for replacement in existing designs or when supply of the primary part is constrained.

Both parts satisfy RoHS3 compliance and MSL 1 requirements. Selection between these parts should be based on design power budget requirements and supply chain availability rather than electrical performance differences.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF1431U replace the RC3225F1431CS in existing designs?

A: Yes. The ERJ-14NF1431U maintains identical resistance (1.43 kOhms), tolerance (±1%), package format (1210), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The higher power rating (0.5W vs. 0.333W) does not prevent substitution and may provide additional thermal margin in the application.

Q: What is the significance of the "Not For New Designs" status on the ERJ-14NF1431U?

A: This designation indicates that Panasonic does not recommend the ERJ-14NF1431U for new product development. However, it remains electrically and mechanically compatible with the RC3225F1431CS and is suitable for replacement applications or when supply constraints require substitution.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist within package specification tolerances. The RC3225F1431CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with a maximum seated height of 0.026" (0.66mm). The ERJ-14NF1431U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with a maximum seated height of 0.028" (0.70mm). Both dimensions remain within the 1210 package specification and do not affect PCB layout or assembly compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RC3225F1431CS and ERJ-14NF1431U are RoHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. The ERJ-14NF1431U additionally carries AEC-Q200 automotive qualification, which represents a higher qualification standard but does not prevent use in non-automotive applications.

Q: What packaging formats are available for these parts?

A: The RC3225F1431CS is available in standard packaging. The ERJ-14NF1431U is supplied in Tape & Reel (TR) format. Packaging format does not affect electrical performance or substitution compatibility; it relates only to order quantity and handling requirements.

Q: Can the RC3225F1431CS be used in applications requiring AEC-Q200 qualification?

A: No. The RC3225F1431CS does not carry AEC-Q200 automotive qualification. Applications requiring this certification must use the ERJ-14NF1431U or equivalent AEC-Q200 qualified components.