RC3225F9761CS Equivalent & Substitute Parts

Part Overview

The RC3225F9761CS is a 9.76 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 a moisture-resistant design 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 rating.

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 such as automotive qualification.

Substiute Parts

RC3225F9761CS

Samsung Electro-MechanicsIn Stock: 976RC3225F9761CS Datasheet

Current PartRFQ

ERJ-14NF9761U

Panasonic Electronic ComponentsIn Stock: 3494ERJ-14NF9761U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC3225F9761CS is based on the following criteria:

Mandatory Matching Parameters:

• Resistance value: 9.76 kOhms (exact match required)
• Tolerance: ±1% (equal or tighter tolerance acceptable)
• Package / Case: 1210 (3225 Metric) (physical compatibility)
• Composition: Thick Film (technology consistency)
• Temperature Coefficient: ±100ppm/°C (performance stability)
• Operating Temperature Range: -55°C to 155°C (minimum coverage required)
• Moisture Sensitivity Level: MSL 1 or better (handling compatibility)
• RoHS Status: ROHS3 Compliant (regulatory requirement)

Acceptable Variation Parameters:

• Power Rating: Substitutes with equal or higher power ratings (0.333W or greater) are acceptable, as thermal capability can be increased without affecting circuit function
• Packaging Format: Tape & Reel (TR) or other standard packaging formats are acceptable if component specifications remain identical

The identified substitute ERJ-14NF9761U meets all mandatory parameters while offering increased power rating (0.5W vs. 0.333W) and automotive AEC-Q200 qualification.

Parameter Comparison

Engineering Selection Recommendations

Primary Component Selection: The RC3225F9761CS maintains Active product status and is recommended for new designs requiring standard industrial-grade thick film resistors with the specified electrical characteristics.

Substitute Component Consideration: The ERJ-14NF9761U from Panasonic is electrically and mechanically compatible with the RC3225F9761CS. The substitute provides identical resistance, tolerance, temperature coefficient, and operating range. The increased power rating (0.5W vs. 0.333W) presents no compatibility issues and may provide thermal margin in power-dissipation-sensitive applications.

The ERJ-14NF9761U carries AEC-Q200 automotive qualification, making it suitable for applications requiring automotive-grade components. However, this part is designated "Not For New Designs," indicating Panasonic's intent to phase out this model. Selection of this substitute should be limited to applications where automotive qualification is a specific requirement or where supply of the primary component is unavailable.

Compliance Considerations: Both components satisfy ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across standard industrial and consumer applications.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF9761U replace the RC3225F9761CS in existing designs?

A: Yes. The ERJ-14NF9761U is electrically and mechanically compatible. All critical parameters—resistance value, tolerance, temperature coefficient, operating temperature range, and package dimensions—are identical. The higher power rating (0.5W vs. 0.333W) does not create compatibility issues.

Q: What is the significance of the "Not For New Designs" status on the ERJ-14NF9761U?

A: This designation indicates that Panasonic is discontinuing this model for new product development. While the part remains available and functional, it should not be selected for new designs unless automotive AEC-Q200 qualification is a mandatory requirement. For new designs, the RC3225F9761CS is the preferred choice.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist. The RC3225F9761CS 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-14NF9761U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with a maximum seated height of 0.028" (0.70mm). Both fit the 1210 (3225 Metric) package specification and are PCB-compatible.

Q: Does the increased power rating of the ERJ-14NF9761U affect circuit performance?

A: No. Power rating represents the maximum thermal capability of the component. A higher power rating does not change electrical performance, resistance value, or tolerance. The substitute will function identically in circuits designed for the 0.333W component.

Q: What packaging formats are available for these parts?

A: The RC3225F9761CS is available in standard packaging. The ERJ-14NF9761U is supplied in Tape & Reel (TR) format. Both formats are compatible with standard PCB assembly processes.

Q: Are both parts suitable for the -55°C to 155°C temperature range?

A: Yes. Both components are rated for identical operating temperature ranges of -55°C to 155°C with ±100ppm/°C temperature coefficient, ensuring consistent performance across the full environmental specification.