RC3225F2803CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F2803CS is a 280 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 with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status and carries ROHS3 compliance certification.

Substitute parts become necessary when the original component experiences supply constraints, inventory limitations, or when design requirements permit alternative specifications within acceptable electrical and mechanical tolerances. The parts listed below share the core electrical characteristics (resistance value, tolerance, and temperature coefficient) while offering variations in power rating, automotive qualification, and compliance certifications.

Substiute Parts

RC3225F2803CS

Samsung Electro-MechanicsIn Stock: 764RC3225F2803CS Datasheet

Current PartRFQ

ERJ-14NF2803U

Panasonic Electronic ComponentsIn Stock: 10763ERJ-14NF2803U Datasheet

SimilarRFQ

ERJ-P14F2803U

Panasonic Electronic ComponentsIn Stock: 7174ERJ-P14F2803U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F2803CS is determined by strict adherence to the following parameters:

Mandatory Matching Parameters:

• Resistance Value: 280 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package / Case: 1210 (3225 Metric) (exact match required for PCB compatibility)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C to 155°C (exact match required)
• Moisture Sensitivity Level: MSL 1 (Unlimited) (exact match required)

Allowable Variation Parameters:

• Power Rating: Substitute parts may have equal or higher power ratings (0.333W minimum acceptable)
• Product Status: Active or Not For New Designs both acceptable for substitution purposes
• RoHS Status: ROHS3 Compliant preferred; RoHS non-compliant parts acceptable if regulatory requirements permit
• Automotive Qualification: AEC-Q200 certification is an additional feature, not a requirement for substitution

The two substitute parts identified below meet all mandatory matching criteria while offering enhanced power ratings and automotive-grade certifications.

Parameter Comparison

Engineering Selection Recommendations

ERJ-P14F2803U (Primary Substitute): This Panasonic component is the preferred substitute for the RC3225F2803CS. It maintains Active product status, carries ROHS3 compliance matching the original part, and provides enhanced power rating (0.5W versus 0.333W). The inclusion of AEC-Q200 automotive qualification and pulse withstanding capability offers additional reliability margins. Dimensional compatibility is confirmed within acceptable PCB layout tolerances. This part is suitable for new design implementations.

ERJ-14NF2803U (Secondary Substitute): This Panasonic component meets all mandatory electrical and mechanical substitution criteria and provides the same enhanced power rating (0.5W) as the primary substitute. However, it carries Not For New Designs product status and RoHS non-compliant certification. This part is acceptable for legacy system maintenance or applications where RoHS compliance is not required. The AEC-Q200 automotive qualification provides equivalent reliability to the primary substitute.

Both substitute parts accommodate the original 0.333W power requirement with higher ratings, ensuring thermal performance margins in the application circuit.

Frequently Asked Questions (FAQ)

Q: Can ERJ-P14F2803U and ERJ-14NF2803U be used interchangeably with RC3225F2803CS?

A: Both parts meet the mandatory electrical parameters (280 kOhms ±1%, ±100ppm/°C, -55°C to 155°C operating range) and package specifications (1210 / 3225 Metric). The higher power ratings (0.5W versus 0.333W) are acceptable for substitution. Dimensional variations (height 0.028" versus 0.026") fall within standard PCB assembly tolerances. Substitution is electrically and mechanically valid.

Q: What is the significance of the power rating difference between 0.333W and 0.5W?

A: The RC3225F2803CS is rated for 0.333W (1/3W) power dissipation. Both substitute parts are rated for 0.5W (1/2W), representing a 50% increase in thermal capability. This higher rating provides additional safety margin in the application circuit and does not create compatibility issues. The substitute parts will operate at lower temperatures under identical power dissipation conditions.

Q: Why does ERJ-14NF2803U have "Not For New Designs" status?

A: Product status indicates manufacturer recommendations for design implementation. "Not For New Designs" designation suggests the part may have limited long-term availability or the manufacturer recommends newer alternatives for future projects. However, this status does not affect the part's electrical or mechanical suitability for substitution in existing designs or legacy system maintenance.

Q: What is the difference between ERJ-P14F2803U and ERJ-14NF2803U?

A: Both parts share identical electrical specifications (280 kOhms ±1%, 0.5W, ±100ppm/°C) and package format (1210). The primary differences are: ERJ-P14F2803U includes pulse withstanding capability, carries Active product status, and is ROHS3 compliant. ERJ-14NF2803U has Not For New Designs status and is RoHS non-compliant. For new applications, ERJ-P14F2803U is the recommended choice.

Q: Are there any PCB layout considerations when substituting these parts?

A: Dimensional compatibility is confirmed. The substitute parts measure 0.126" L x 0.098" W (3.20mm x 2.50mm) compared to the original 0.126" L x 0.100" W (3.20mm x 2.55mm). The 0.05mm width difference and 0.002" height difference (0.028" versus 0.026") are within standard PCB assembly tolerances and do not require layout modifications. Footprint compatibility is maintained for 1210 package designations.

Q: Which substitute part should be selected for new designs?

A: ERJ-P14F2803U is the recommended selection for new designs. It maintains Active product status, carries ROHS3 compliance, includes AEC-Q200 automotive qualification, and provides pulse withstanding capability. These characteristics ensure long-term availability and regulatory compliance for production implementations.

Q: Is RoHS compliance a critical factor for substitution?

A: RoHS compliance depends on application requirements and regulatory jurisdiction. The original RC3225F2803CS is ROHS3 compliant. ERJ-P14F2803U maintains this compliance, while ERJ-14NF2803U is RoHS non-compliant. For applications subject to RoHS regulations, ERJ-P14F2803U is the appropriate substitute. For applications without RoHS requirements, both substitutes are electrically and mechanically valid.