RC3225F4643CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F4643CS is a 464 kOhms ±1% 1/3W (0.333W) thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package. This component is classified as Active product status and features moisture-resistant construction with ROHS3 compliance. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Substiute Parts

RC3225F4643CS

Samsung Electro-MechanicsIn Stock: 1015RC3225F4643CS Datasheet

Current PartRFQ

ERJ-14NF4643U

Panasonic Electronic ComponentsIn Stock: 15435ERJ-14NF4643U Datasheet

SimilarRFQ

RMCF1210FT464K

Stackpole Electronics IncIn Stock: 8716RMCF1210FT464K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC3225F4643CS are qualified based on the following criteria:

Mandatory Matching Parameters:

• Resistance value: 464 kOhms
• Tolerance: ±1%
• Package / Case: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Sensitivity Level: 1 (Unlimited)
• Number of Terminations: 2

Allowable Variation:

• Power Rating: Substitute parts may have equal or higher power ratings (0.5W or greater) while maintaining the same package dimensions and electrical characteristics.

Compliance Considerations:

• RoHS and REACH compliance status may differ between main part and substitutes.
• Product status (Active vs. Not For New Designs) is noted for design planning purposes.

Parameter Comparison

Engineering Selection Recommendations

RMCF1210FT464K (Stackpole Electronics Inc) is the primary substitute for RC3225F4643CS. Both components maintain Active product status, ROHS3 compliance, and identical electrical specifications. The RMCF1210FT464K provides higher power rating (0.5W vs. 0.333W) within the same 1210 package footprint, offering enhanced thermal margin. Stackpole's AEC-Q200 automotive qualification provides additional reliability assurance for applications requiring automotive-grade components.

ERJ-14NF4643U (Panasonic Electronic Components) is a secondary substitute with equivalent electrical and mechanical specifications. This part carries AEC-Q200 automotive qualification and identical operating temperature range. However, ERJ-14NF4643U is designated as Not For New Designs, limiting its application to legacy system support or maintenance scenarios. Additionally, this part does not meet ROHS3 compliance, which may restrict use in applications with RoHS requirements.

For new design implementations, RMCF1210FT464K is the recommended substitute. For legacy or maintenance applications where RoHS compliance is not mandated, ERJ-14NF4643U remains functionally compatible.

Frequently Asked Questions (FAQ)

Q: Can RMCF1210FT464K replace RC3225F4643CS in existing designs?

A: Yes. Both components share identical resistance (464 kOhms), tolerance (±1%), package (1210), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The RMCF1210FT464K provides higher power rating (0.5W vs. 0.333W), which is compatible with applications designed for the lower-rated part. Mechanical dimensions are within acceptable tolerance for PCB footprint compatibility.

Q: What is the difference between 1/3W and 1/2W power ratings?

A: Power rating indicates the maximum continuous power dissipation the resistor can handle. The RMCF1210FT464K (1/2W) can dissipate more heat than the RC3225F4643CS (1/3W) while maintaining the same physical package size. A higher-rated substitute is acceptable for applications designed with the lower rating, as it provides additional thermal headroom.

Q: Why is ERJ-14NF4643U marked as Not For New Designs?

A: This designation indicates the manufacturer has discontinued active development and recommends alternative parts for new product designs. While ERJ-14NF4643U remains functionally equivalent and available in inventory, it is suitable only for legacy system maintenance or replacement applications.

Q: Does RoHS compliance affect substitution?

A: RoHS compliance is a regulatory requirement dependent on application and market. RC3225F4643CS and RMCF1210FT464K are both ROHS3 compliant, making them interchangeable for applications with RoHS mandates. ERJ-14NF4643U is RoHS non-compliant and cannot be used in applications requiring RoHS certification.

Q: Are the physical dimensions identical across all three parts?

A: Dimensions are within acceptable tolerance. RC3225F4643CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with 0.026" max height. RMCF1210FT464K and ERJ-14NF4643U measure 0.126" L x 0.098" W (3.20mm x 2.50mm) with 0.028" max height. These minor variations remain within standard PCB footprint tolerances for 1210 package components.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive industry standard qualification for passive components. RMCF1210FT464K and ERJ-14NF4643U both carry this rating, indicating compliance with automotive reliability and performance requirements. RC3225F4643CS does not specify AEC-Q200 qualification.