RC3225F3653CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F3653CS is a 365 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.333W (1/3W) power dissipation in a 1210 (3225 Metric) surface mount package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts become necessary when the primary manufacturer part experiences supply constraints, extended lead times, or when design requirements permit alternative qualified sources. The RC3225F3653CS has documented equivalent parts that maintain electrical and mechanical compatibility within specified tolerance ranges.

Substiute Parts

RC3225F3653CS

Samsung Electro-MechanicsIn Stock: 1198RC3225F3653CS Datasheet

Current PartRFQ

ERJ-14NF3653U

Panasonic Electronic ComponentsIn Stock: 28473ERJ-14NF3653U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F3653CS is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 365 kOhms (exact match required)
• Tolerance: ±1% (precision class must be maintained)
• Package: 1210 (3225 Metric) (physical footprint compatibility)
• Composition: Thick Film (manufacturing process)
• Temperature Coefficient: ±100ppm/°C (stability specification)
• Operating Temperature Range: -55°C to 155°C (environmental envelope)
• Number of Terminations: 2 (standard configuration)

Allowable Variation:

• Power Rating: Substitute parts may have equal or higher power dissipation capacity (0.333W or greater)
• Physical dimensions: Minor variations within standard package tolerances are acceptable
• Compliance certifications: Substitute parts must maintain RoHS3 compliance and MSL 1 rating

The ERJ-14NF3653U from Panasonic Electronic Components qualifies as a direct substitute based on these criteria, with the exception of elevated power rating (0.5W versus 0.333W), which represents a design margin improvement rather than a compatibility limitation.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (RC3225F3653CS): The Samsung Electro-Mechanics RC3225F3653CS maintains Active product status, indicating ongoing manufacturer support and availability. This part is suitable for new design implementations and long-term production requirements. Active status provides assurance of continued supply and technical support from the manufacturer.

Substitute Part (ERJ-14NF3653U): The Panasonic ERJ-14NF3653U carries "Not For New Designs" status, indicating the manufacturer has discontinued active promotion of this part for new applications. However, the part remains electrically and mechanically compatible with the RC3225F3653CS across all critical parameters. The elevated power rating (0.5W versus 0.333W) provides additional thermal margin in applications where the primary part experiences supply constraints.

Compliance Basis: Both parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard PCB assembly processes and storage conditions. Both parts carry EAR99 export classification and are REACH Unaffected, supporting global supply chain deployment.

Selection Logic:

• Use RC3225F3653CS for new designs requiring active manufacturer support
• Use ERJ-14NF3653U for replacement or retrofit applications where supply of the primary part is unavailable
• The higher power rating of the ERJ-14NF3653U does not create incompatibility; it represents a design margin improvement

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF3653U be used as a direct replacement for the RC3225F3653CS in existing designs?

A: Yes. The ERJ-14NF3653U is electrically and mechanically compatible with the RC3225F3653CS. Both parts share identical resistance value (365 kOhms), tolerance (±1%), package footprint (1210/3225 Metric), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). The higher power rating (0.5W versus 0.333W) does not create incompatibility and provides additional thermal headroom.

Q: What does "Not For New Designs" status mean for the ERJ-14NF3653U?

A: "Not For New Designs" indicates that Panasonic has transitioned this part to end-of-life status and is not actively promoting it for new applications. However, the part remains available from inventory and is fully functional. This status is relevant only for new product development; it does not affect the part's performance in replacement or retrofit applications.

Q: Are there dimensional differences between these parts that affect PCB layout?

A: Both parts use the 1210 (3225 Metric) package with identical length (0.126" / 3.20mm) and width specifications (0.100" / 2.55mm for RC3225F3653CS; 0.098" / 2.50mm for ERJ-14NF3653U). The width difference of 0.05mm is within standard package tolerance and does not affect PCB footprint design. Height specifications are also within standard tolerance (0.026" / 0.66mm versus 0.028" / 0.70mm).

Q: Do both parts require the same moisture handling procedures?

A: Yes. Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating they do not require special moisture control during storage or assembly. Standard PCB assembly processes and storage conditions are appropriate for both parts.

Q: What is the significance of the temperature coefficient specification?

A: The ±100ppm/°C temperature coefficient indicates the maximum change in resistance value per degree Celsius across the operating temperature range. Both parts share this specification, ensuring equivalent stability and predictability across the -55°C to 155°C operating envelope. This parameter is critical for precision analog circuits and temperature-sensitive applications.

Q: Can these parts be used interchangeably in automotive applications?

A: The ERJ-14NF3653U carries AEC-Q200 automotive qualification, while the RC3225F3653CS does not specify automotive certification. If automotive qualification is a design requirement, the RC3225F3653CS must be verified against specific automotive standards before substitution. For non-automotive applications, both parts are interchangeable.