RC3225F30R9CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F30R9CS is a 30.9 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.333W (1/3W) power dissipation in a 1210 (3225 Metric) surface mount package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and performance envelope. The primary substitute identified is the ERJ-14NF30R9U from Panasonic Electronic Components, which shares identical resistance, tolerance, and package dimensions while offering increased power rating and automotive qualification.

Substiute Parts

RC3225F30R9CS

Samsung Electro-MechanicsIn Stock: 1057RC3225F30R9CS Datasheet

Current PartRFQ

ERJ-14NF30R9U

Panasonic Electronic ComponentsIn Stock: 10541ERJ-14NF30R9U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F30R9CS is determined by strict adherence to the following criteria:

Mandatory Matching Parameters:

• Resistance value: 30.9 Ohms
• Tolerance: ±1%
• Package / Case: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C to 155°C minimum
• Moisture Sensitivity Level: MSL 1 or better
• RoHS3 Compliance: Required

Allowable Variation Parameters:

• Power Rating: Equal to or greater than 0.333W (1/3W)
• Product Status: Active or Not For New Designs
• Packaging format: May differ (bulk, tape & reel, etc.)
• Supplier Device Package designation: May vary by manufacturer

The ERJ-14NF30R9U from Panasonic meets all mandatory parameters while providing a higher power rating of 0.5W (1/2W) and automotive AEC-Q200 qualification. This represents a direct functional upgrade within the same mechanical footprint.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: ERJ-14NF30R9U (Panasonic Electronic Components)

The ERJ-14NF30R9U is electrically and mechanically compatible with the RC3225F30R9CS. Both components share identical resistance, tolerance, temperature coefficient, and operating temperature specifications. The 1210 package footprint is functionally equivalent with negligible dimensional variance (width difference of 0.05mm, height difference of 0.02mm) that does not impact PCB layout or assembly processes.

The ERJ-14NF30R9U provides a higher power dissipation rating (0.5W versus 0.333W), which represents a functional upgrade and increases design margin in thermal-constrained applications. The component carries AEC-Q200 automotive qualification, which is an additional certification benefit for applications requiring automotive-grade reliability.

Product Status Consideration:

The RC3225F30R9CS maintains Active status, indicating continued manufacturer support and availability. The ERJ-14NF30R9U is designated as Not For New Designs, indicating Panasonic has transitioned this part to mature lifecycle status. For new product development, the RC3225F30R9CS is the preferred choice. For legacy system support or replacement applications, the ERJ-14NF30R9U remains a valid functional equivalent.

Compliance Verification:

Both components are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS code 8533.21.0030. No additional compliance documentation is required for substitution.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF30R9U directly replace the RC3225F30R9CS on an existing PCB?

A: Yes. Both components use the 1210 (3225 Metric) package with compatible footprints. The dimensional variance (0.05mm width, 0.02mm height) is within standard PCB assembly tolerances and does not require layout modification.

Q: What is the significance of the higher power rating on the ERJ-14NF30R9U?

A: The ERJ-14NF30R9U is rated at 0.5W (1/2W) compared to the RC3225F30R9CS at 0.333W (1/3W). This higher rating allows the Panasonic component to dissipate more power without exceeding temperature limits. In applications where the RC3225F30R9CS operates near its power limit, the ERJ-14NF30R9U provides additional thermal margin.

Q: Why is the ERJ-14NF30R9U marked as "Not For New Designs"?

A: This designation indicates that Panasonic has moved the ERJ-14NF30R9U to mature lifecycle status and is not actively promoting it for new product development. However, the component remains available and fully functional. For new designs, Samsung's RC3225F30R9CS (Active status) is the recommended choice.

Q: Are there any electrical performance differences between these two resistors?

A: No. Both components have identical resistance (30.9 Ohms), tolerance (±1%), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). The only electrical difference is the power rating, where the ERJ-14NF30R9U provides higher capacity.

Q: Do both components have the same moisture sensitivity rating?

A: Yes. Both the RC3225F30R9CS and ERJ-14NF30R9U are rated MSL 1 (Unlimited), indicating they have unlimited shelf life and do not require special moisture control during storage or handling.

Q: What packaging formats are available for each part?

A: The RC3225F30R9CS is available in standard packaging (format not specified in inventory data). The ERJ-14NF30R9U is supplied in Tape & Reel (TR) format. Packaging format does not affect electrical or mechanical compatibility; it only impacts procurement and assembly logistics.

Q: Are both components RoHS3 compliant?

A: Yes. Both the RC3225F30R9CS and ERJ-14NF30R9U are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.