RC3225F1183CS Equivalent & Substitute Parts

Part Overview

The RC3225F1183CS is a 118 kOhms ±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 core performance parameters. The primary substitute identified for this resistor is the ERJ-14NF1183U from Panasonic Electronic Components, which shares identical resistance value, tolerance, and package dimensions while offering enhanced power handling capability.

Substiute Parts

RC3225F1183CS

Samsung Electro-MechanicsIn Stock: 1012RC3225F1183CS Datasheet

Current PartRFQ

ERJ-14NF1183U

Panasonic Electronic ComponentsIn Stock: 33784ERJ-14NF1183U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F1183CS is determined by strict adherence to the following core parameters:

Mandatory Matching Parameters:

• Resistance value: 118 kOhms
• Tolerance: ±1%
• Package format: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Number of terminations: 2
• RoHS3 compliance

Allowable Variation Parameters:

• Power rating: Substitute parts may have equal or higher power ratings than the main part (0.333W minimum)
• Physical dimensions: Minor variations within supplier device package specifications are acceptable
• Packaging format: Original packaging may differ (bulk vs. Tape & Reel)
• Product status: Substitutes may have different lifecycle classifications
• Certifications: Additional certifications (such as AEC-Q200) are acceptable enhancements

The ERJ-14NF1183U meets all mandatory matching parameters and exceeds the power rating specification, making it a valid electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

RC3225F1183CS (Main Part): The RC3225F1183CS maintains Active product status, indicating continued manufacturing and support from Samsung Electro-Mechanics. This part is suitable for new design implementations and ongoing production applications. The component meets RoHS3 compliance requirements and carries unlimited moisture sensitivity rating.

ERJ-14NF1183U (Substitute): The ERJ-14NF1183U is classified as Not For New Designs, indicating that Panasonic Electronic Components has transitioned this part to end-of-life status. However, the part remains electrically and mechanically compatible with the RC3225F1183CS for existing applications requiring component replacement or inventory supplementation. The ERJ-14NF1183U includes AEC-Q200 automotive qualification, providing enhanced reliability certification for applications requiring automotive-grade components. The higher power rating (0.5W vs. 0.333W) provides additional thermal margin in applications where the main part is thermally constrained.

Selection Criteria:

• For new designs: Prioritize RC3225F1183CS (Active status)
• For replacement or supplementation: ERJ-14NF1183U is electrically and mechanically compatible
• For automotive applications: ERJ-14NF1183U provides AEC-Q200 certification
• For thermal margin requirements: ERJ-14NF1183U offers higher power dissipation capability

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF1183U be used as a direct replacement for the RC3225F1183CS?

A: Yes. The ERJ-14NF1183U is electrically and mechanically compatible with the RC3225F1183CS. Both components share identical resistance value (118 kOhms), tolerance (±1%), package format (1210/3225 Metric), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). Physical dimensions are within acceptable tolerance for PCB footprint compatibility.

Q: What is the significance of the higher power rating on the ERJ-14NF1183U?

A: The ERJ-14NF1183U is rated for 0.5W (1/2W) compared to the RC3225F1183CS at 0.333W (1/3W). This higher power rating indicates greater thermal dissipation capability. In applications where the RC3225F1183CS operates near its power limit, the ERJ-14NF1183U provides additional thermal margin and reduced junction temperature rise.

Q: Why is the ERJ-14NF1183U marked as "Not For New Designs"?

A: The "Not For New Designs" status indicates that Panasonic Electronic Components has discontinued active development and marketing of this part. However, the component remains available for existing applications and replacement purposes. For new design implementations, the RC3225F1183CS (Active status) is the recommended choice.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist within supplier specifications. The RC3225F1183CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with maximum seated height of 0.026" (0.66mm). The ERJ-14NF1183U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with maximum seated height of 0.028" (0.70mm). These variations remain within the 1210 package specification and do not affect PCB footprint compatibility.

Q: Does the AEC-Q200 certification on the ERJ-14NF1183U affect compatibility?

A: No. AEC-Q200 is an automotive qualification standard that indicates enhanced reliability testing and quality assurance. This certification is an additional benefit and does not create incompatibility. The ERJ-14NF1183U can be used in non-automotive applications without restriction.

Q: What is the moisture sensitivity level, and why is it important?

A: Both components carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related handling restrictions during storage, transport, or assembly. This classification simplifies supply chain management and eliminates the need for specialized moisture-barrier packaging or baking procedures prior to soldering.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the RC3225F1183CS and ERJ-14NF1183U are RoHS3 compliant, meeting European Union Restriction of Hazardous Substances regulations. Both components are also REACH Unaffected and classified under ECCN EAR99 for export control purposes.