RC3225F6343CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F6343CS is a 634 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.333W (1/3W) in a 1210 (3225 Metric) package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts may be required due to inventory constraints, supply chain discontinuities, or application-specific requirements such as higher power ratings or automotive qualification standards.

Substiute Parts

RC3225F6343CS

Samsung Electro-MechanicsIn Stock: 1010RC3225F6343CS Datasheet

Current PartRFQ

ERJ-14NF6343U

Panasonic Electronic ComponentsIn Stock: 13769ERJ-14NF6343U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F6343CS is determined by strict alignment of the following parameters:

Critical Parameters (Must Match):

• Resistance value: 634 kOhms
• Tolerance: ±1%
• Package / Case: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Number of Terminations: 2

Allowable Variation Parameters:

• Power Rating: Substitute parts may have equal or higher power ratings
• Physical dimensions: Minor variations within package specification tolerance
• Moisture Sensitivity Level: Must be 1 (Unlimited) or equivalent
• Compliance certifications: May include additional certifications (e.g., AEC-Q200)

The ERJ-14NF6343U from Panasonic Electronic Components meets all critical parameters and qualifies as a direct substitute, with the distinction of higher power rating (0.5W vs. 0.333W) and automotive AEC-Q200 qualification.

Parameter Comparison

Engineering Selection Recommendations

RC3225F6343CS (Primary Selection): The RC3225F6343CS is the recommended primary selection for new designs. It maintains Active product status, ensuring long-term availability and supply chain stability. ROHS3 compliance satisfies current regulatory requirements for consumer and industrial applications.

ERJ-14NF6343U (Substitute Selection): The ERJ-14NF6343U qualifies as a functional substitute when the RC3225F6343CS is unavailable. This part provides identical electrical performance (634 kOhms ±1%, ±100ppm/°C, -55°C ~ 155°C) with higher power dissipation capability (0.5W vs. 0.333W). The AEC-Q200 automotive qualification extends applicability to automotive-grade applications. However, the "Not For New Designs" status and RoHS non-compliance status require evaluation against project requirements and regulatory constraints.

Compliance Considerations: Applications requiring ROHS3 compliance must use RC3225F6343CS. Applications requiring automotive qualification may benefit from ERJ-14NF6343U despite its RoHS non-compliance status, contingent on end-use regulatory approval.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF6343U replace RC3225F6343CS in all applications?

A: ERJ-14NF6343U provides electrical equivalence (634 kOhms ±1%, identical temperature coefficient and operating range). However, compliance differences exist: RC3225F6343CS is ROHS3 compliant while ERJ-14NF6343U is RoHS non-compliant. Substitution is permissible only when RoHS compliance is not a project requirement. The higher power rating (0.5W vs. 0.333W) of ERJ-14NF6343U does not restrict substitution in circuits designed for 0.333W operation.

Q: Are the physical dimensions compatible?

A: Both parts use the 1210 (3225 Metric) package. Dimensional variations are minor: RC3225F6343CS measures 3.20mm x 2.55mm x 0.66mm (max height), while ERJ-14NF6343U measures 3.20mm x 2.50mm x 0.70mm (max height). These differences fall within standard PCB layout tolerances and do not affect footprint compatibility.

Q: What does "Not For New Designs" mean for ERJ-14NF6343U?

A: This designation indicates that Panasonic has classified this part as obsolete or end-of-life for new product development. While functional equivalence is maintained, long-term availability cannot be guaranteed. New designs should prioritize RC3225F6343CS or identify alternative long-term sources.

Q: Are there differences in moisture sensitivity?

A: Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related handling restrictions during storage, transport, or assembly.

Q: Can I use ERJ-14NF6343U in a consumer product requiring ROHS3 compliance?

A: No. ROHS3 compliance is mandatory for consumer electronics in regulated markets. ERJ-14NF6343U's RoHS non-compliant status disqualifies it for this application. RC3225F6343CS must be used.