RC3225F11R5CS Equivalent & Substitute Parts

Part Overview

The RC3225F11R5CS is a 11.5 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package format with a power rating of 0.333W (1/3W). This component is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and resistance value. Alternative sources become necessary for inventory availability, supply chain continuity, or specific application requirements such as automotive qualification.

Substiute Parts

RC3225F11R5CS

Samsung Electro-MechanicsIn Stock: 1104RC3225F11R5CS Datasheet

Current PartRFQ

ERJ-14NF11R5U

Panasonic Electronic ComponentsIn Stock: 21591ERJ-14NF11R5U Datasheet

SimilarRFQ

RMCF1210FT11R5

Stackpole Electronics IncIn Stock: 8432RMCF1210FT11R5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F11R5CS is determined by the following critical parameters:

Mandatory Matching Criteria:

• Resistance value: 11.5 Ohms
• Tolerance: ±1%
• Package / Case: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• RoHS3 Compliance
• MSL Rating: 1 (Unlimited)

Allowable Variation:

• Power rating may exceed the original specification (0.333W minimum required)
• Dimensional tolerances within supplier specifications for the 1210 package
• Product status may differ (Active or Not For New Designs)
• Additional certifications (such as AEC-Q200) do not disqualify substitution

The identified substitute parts meet all mandatory criteria while offering equal or superior power handling capability.

Parameter Comparison

Engineering Selection Recommendations

RMCF1210FT11R5 (Stackpole Electronics Inc) is the primary substitute for the RC3225F11R5CS. This part maintains Active product status, meets all electrical and mechanical specifications, and provides increased power handling capability (0.5W versus 0.333W). The AEC-Q200 automotive qualification adds design margin for applications requiring automotive-grade reliability. This part is suitable for new designs and ongoing production.

ERJ-14NF11R5U (Panasonic Electronic Components) is a secondary substitute that meets all electrical and mechanical requirements with equivalent 0.5W power rating and AEC-Q200 qualification. However, this part carries Not For New Designs status, limiting its application to legacy system support or inventory replacement scenarios only.

Both substitute parts are electrically and mechanically compatible with the original RC3225F11R5CS specification. Selection between them depends on product lifecycle requirements and supply chain strategy.

Frequently Asked Questions (FAQ)

Q: Can the RMCF1210FT11R5 be used as a direct replacement for the RC3225F11R5CS?

A: Yes. Both parts share identical resistance (11.5 Ohms), tolerance (±1%), package (1210), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The RMCF1210FT11R5 provides higher power handling (0.5W versus 0.333W), which is compatible with the original application requirements.

Q: What is the difference between the 0.333W and 0.5W power ratings?

A: The power rating indicates maximum continuous power dissipation capability. The substitute parts with 0.5W rating can safely dissipate up to 50% more power than the original 0.333W specification. This provides additional thermal margin and does not affect electrical performance in applications operating within the original power budget.

Q: Why is the ERJ-14NF11R5U marked as "Not For New Designs"?

A: Product status reflects manufacturer lifecycle decisions. Parts marked "Not For New Designs" remain available for existing applications but are not recommended for new product development. The RMCF1210FT11R5 with Active status is preferred for new designs.

Q: Are the physical dimensions compatible between these parts?

A: Yes. All three parts use the 1210 (3225 Metric) package with compatible footprints. Dimensional variations (length 0.126", width 0.098"-0.100", height 0.026"-0.028") fall within standard 1210 package tolerances and do not affect PCB assembly or thermal performance.

Q: Do the substitute parts maintain RoHS3 compliance?

A: Yes. Both RMCF1210FT11R5 and ERJ-14NF11R5U are RoHS3 compliant with MSL 1 (Unlimited) rating, matching the original RC3225F11R5CS specification.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive industry standard qualification for passive components. Parts meeting this standard have undergone additional reliability testing for automotive applications. This certification is optional for general-purpose applications but provides design assurance for automotive or high-reliability environments.