RC3225F4642CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F4642CS is a 46.4 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package format with 0.333W (1/3W) power rating. This component is classified as Active product status and is RoHS3 compliant with Moisture Sensitivity Level 1 (unlimited shelf life). The RC3225F4642CS features moisture-resistant construction suitable for general industrial and consumer applications. Equivalent and substitute parts are identified based on matching electrical specifications, package dimensions, and environmental compliance ratings to ensure direct functional replacement in circuit designs.

Substiute Parts

RC3225F4642CS

Samsung Electro-MechanicsIn Stock: 1112RC3225F4642CS Datasheet

Current PartRFQ

CRCW121046K4FKEA

Vishay DaleIn Stock: 3928CRCW121046K4FKEA Datasheet

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ERJ-14NF4642U

Panasonic Electronic ComponentsIn Stock: 10468ERJ-14NF4642U Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC3225F4642CS are qualified based on the following criteria:

Electrical Parameters (Mandatory Match):

• Resistance value: 46.4 kOhms
• Tolerance: ±1%
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Package Parameters (Mandatory Match):

• Package type: 1210 (3225 Metric)
• Number of terminations: 2
• Composition: Thick Film

Compliance Parameters (Mandatory Match):

• RoHS3 compliance
• Moisture Sensitivity Level 1
• REACH Unaffected status

Power Rating Consideration: Substitute parts may have equal or higher power ratings (0.333W or greater) while maintaining identical physical dimensions and electrical characteristics. Higher power ratings do not affect substitution validity in applications requiring 0.333W or less.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CRCW121046K4FKEA (Vishay Dale)

The CRCW121046K4FKEA is the recommended substitute for the RC3225F4642CS. Both components share identical electrical specifications, package dimensions, and compliance certifications. The Vishay Dale part carries Active product status and includes automotive AEC-Q200 qualification, providing additional reliability assurance. The 0.5W power rating exceeds the original 0.333W specification, ensuring adequate thermal margin in all applications. This part is available in Tape & Reel packaging format.

Secondary Substitute: ERJ-14NF4642U (Panasonic Electronic Components)

The ERJ-14NF4642U meets all electrical and package requirements with identical resistance, tolerance, temperature coefficient, and operating range. This Panasonic component also carries AEC-Q200 automotive qualification. However, the product status is classified as "Not For New Designs," indicating this part is in mature/legacy phase. The ERJ-14NF4642U is suitable for replacement and maintenance applications but should not be selected for new circuit designs where long-term availability is required.

Compliance Verification:

All substitute parts maintain ROHS3 compliance, Moisture Sensitivity Level 1 rating, and REACH Unaffected status, ensuring regulatory compatibility with the original RC3225F4642CS across all markets and applications.

Frequently Asked Questions (FAQ)

Q: Can the CRCW121046K4FKEA replace the RC3225F4642CS in existing designs?

A: Yes. The CRCW121046K4FKEA is a direct functional equivalent. Both components have identical resistance (46.4 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and package format (1210/3225 Metric). The higher power rating (0.5W vs. 0.333W) does not prevent substitution and provides additional thermal headroom.

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

A: The power rating indicates the maximum continuous power dissipation the resistor can handle without exceeding temperature limits. The CRCW121046K4FKEA (1/2W) can safely dissipate up to 0.5W, while the RC3225F4642CS (1/3W) is rated to 0.333W. In applications requiring 0.333W or less, either part functions identically. The higher-rated substitute provides design margin.

Q: Are there dimensional compatibility concerns between these parts?

A: The three parts share the same 1210 (3225 Metric) package designation. Length and width dimensions are identical (3.20mm x 3.20mm nominal). Height variations are minimal (0.60mm to 0.70mm maximum seated height), which do not affect PCB assembly or circuit performance in standard applications.

Q: Why is the ERJ-14NF4642U marked "Not For New Designs"?

A: This designation indicates the part is in mature production phase with limited future availability. Panasonic continues to supply existing inventory but does not recommend this part for new circuit designs. For new applications, the CRCW121046K4FKEA (Active status) is the preferred choice.

Q: Do all substitute parts have the same compliance certifications?

A: Yes. The RC3225F4642CS, CRCW121046K4FKEA, and ERJ-14NF4642U are all ROHS3 compliant, carry Moisture Sensitivity Level 1 (unlimited shelf life), and are REACH Unaffected. The Vishay Dale and Panasonic parts include additional AEC-Q200 automotive qualification, which exceeds the original specification.

Q: What packaging formats are available for substitute parts?

A: The CRCW121046K4FKEA is supplied in Tape & Reel (TR) and Cut Tape (CT) formats. The ERJ-14NF4642U is supplied in Tape & Reel format. Packaging selection depends on assembly process requirements and order quantities.