RC3225F3163CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F3163CS is a 316 kOhms ±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 full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit higher power ratings or alternative certifications. The RC3225F3163CS maintains critical electrical parameters—resistance value, tolerance, temperature coefficient, and operating temperature range—that define substitution eligibility across equivalent alternatives.

Substiute Parts

RC3225F3163CS

Samsung Electro-MechanicsIn Stock: 965RC3225F3163CS Datasheet

Current PartRFQ

ERJ-14NF3163U

Panasonic Electronic ComponentsIn Stock: 10115ERJ-14NF3163U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F3163CS is determined by strict adherence to the following criteria:

Mandatory Matching Parameters:

• Resistance value: 316 kOhms (exact match required)
• Tolerance: ±1% (substitute tolerance must not exceed this value)
• Package / Case: 1210 (3225 Metric) (physical and electrical footprint compatibility)
• Composition: Thick Film (ensures consistent electrical behavior)
• Temperature Coefficient: ±100ppm/°C (substitute must not exceed this specification)
• Operating Temperature Range: -55°C ~ 155°C (substitute must support this full range)

Allowable Variations:

• Power Rating: Substitute may equal or exceed 0.333W. Higher power ratings provide additional thermal margin without affecting circuit function.
• Certifications: Substitute may include additional certifications (such as AEC-Q200 automotive qualification) beyond the base RoHS3 requirement.
• Packaging Format: Tape & Reel (TR) or bulk packaging is acceptable provided component specifications remain identical.

The identified substitute ERJ-14NF3163U meets all mandatory parameters while offering increased power rating (0.5W vs. 0.333W) and automotive-grade certification.

Parameter Comparison

Engineering Selection Recommendations

Primary Component (RC3225F3163CS): Select the RC3225F3163CS when Active product status and Samsung Electro-Mechanics supply chain integration are required. This component is in active production with 882 pieces currently in stock, ensuring immediate availability for new designs and production builds.

Substitute Component (ERJ-14NF3163U): The ERJ-14NF3163U is electrically and mechanically equivalent to the RC3225F3163CS. This substitute is suitable for applications where:

• Supply of the primary component is unavailable or subject to extended lead times
• Higher power dissipation margin (0.5W vs. 0.333W) provides additional thermal headroom
• Automotive-grade AEC-Q200 certification is beneficial or required by application standards

Note that ERJ-14NF3163U carries "Not For New Designs" status from Panasonic, indicating this part is in mature production phase. For new design initiatives with long-term production horizons, the Active-status RC3225F3163CS is the preferred selection.

Compliance Verification: Both components satisfy RoHS3 and REACH requirements. No additional regulatory screening is necessary for either part in standard commercial or industrial applications.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF3163U be used as a direct replacement for RC3225F3163CS?

A: Yes. Both components share identical resistance value (316 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and 1210 package footprint. The ERJ-14NF3163U provides higher power rating (0.5W vs. 0.333W), which is an allowable variation that does not compromise circuit function.

Q: What is the significance of the "Not For New Designs" status on ERJ-14NF3163U?

A: This designation indicates the part is in mature production phase and Panasonic does not recommend its use in newly initiated designs. However, it remains fully functional and available for existing designs, production continuity, or applications where supply of the primary component is constrained. For projects with multi-year production timelines, the Active-status RC3225F3163CS is the recommended choice.

Q: Are there physical dimension differences between these parts?

A: Minor dimensional variations exist. RC3225F3163CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with 0.026" maximum seated height. ERJ-14NF3163U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with 0.028" maximum seated height. These differences are within standard PCB assembly tolerances and do not affect interchangeability on standard 1210 footprints.

Q: Does the higher power rating of ERJ-14NF3163U affect circuit behavior?

A: No. Power rating defines the maximum power the component can safely dissipate without exceeding temperature limits. A higher power rating (0.5W vs. 0.333W) provides additional thermal margin but does not alter resistance value, tolerance, or electrical performance at normal operating power levels. The component will function identically in the circuit.

Q: Are both parts RoHS3 compliant?

A: Yes. Both RC3225F3163CS and ERJ-14NF3163U are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for commercial and industrial applications.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life under standard storage conditions (typically 30°C / 85% relative humidity). No special moisture-control packaging or baking procedures are required before assembly. Both parts carry this classification.