RC3225F4023CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F4023CS is a 402 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package format. This component is rated for 0.333W (1/3W) power dissipation and operates across the temperature range of -55°C to 155°C. The part is currently in Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified when design requirements permit component replacement due to inventory constraints, supply chain considerations, or end-of-life transitions. The RC3225F4023CS has one documented substitute: the ERJ-14NF4023U from Panasonic Electronic Components.

Substiute Parts

RC3225F4023CS

Samsung Electro-MechanicsIn Stock: 813RC3225F4023CS Datasheet

Current PartRFQ

ERJ-14NF4023U

Panasonic Electronic ComponentsIn Stock: 7800ERJ-14NF4023U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F4023CS is determined by strict alignment with the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 402 kOhms (exact match required)
• Tolerance: ±1% (substitute tolerance must be equal or tighter)
• Package format: 1210 (3225 Metric) (physical and footprint compatibility)
• Composition: Thick Film (electrical performance characteristics)
• Temperature coefficient: ±100ppm/°C (thermal drift characteristics)
• Operating temperature range: -55°C to 155°C (environmental suitability)
• Number of terminations: 2 (circuit interface requirement)

Allowable Variation:

• Power rating: Substitute must equal or exceed 0.333W (0.5W or higher is acceptable)
• Physical dimensions: Minor variations within package specification are acceptable
• Moisture sensitivity level: MSL 1 rating is maintained across substitutes
• Compliance certifications: May differ based on application requirements

The ERJ-14NF4023U meets all critical matching parameters and exceeds the power rating requirement (0.5W vs. 0.333W), making it a valid electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

RC3225F4023CS (Samsung Electro-Mechanics) - Primary Selection:

• Active product status ensures ongoing availability and manufacturing support
• ROHS3 compliance meets current regulatory requirements for new designs
• Recommended for new product development and long-term production applications
• 741 pieces in current inventory

ERJ-14NF4023U (Panasonic Electronic Components) - Substitute Selection:

• Not For New Designs status indicates this part is in transition or end-of-life phase
• RoHS non-compliant status restricts use in applications requiring RoHS certification
• Automotive AEC-Q200 qualification provides additional reliability assurance for automotive applications where RoHS exemptions apply
• Higher power rating (0.5W vs. 0.333W) provides thermal margin in power-dissipation-critical circuits
• 7722 pieces in current inventory
• Suitable for legacy system maintenance, repair, or applications where RoHS compliance is not required

Selection Criteria:

• Use RC3225F4023CS for new designs and RoHS-compliant applications
• Use ERJ-14NF4023U only when RC3225F4023CS is unavailable and RoHS compliance is not a requirement
• Both parts are electrically and mechanically interchangeable within the specified parameters

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF4023U be used as a direct replacement for the RC3225F4023CS in new product designs?

A: The ERJ-14NF4023U is electrically and mechanically compatible with the RC3225F4023CS. However, the ERJ-14NF4023U carries a "Not For New Designs" status and is RoHS non-compliant. For new product development, the RC3225F4023CS is the recommended choice. The ERJ-14NF4023U may be used in new designs only if RoHS compliance is not a regulatory requirement for your application.

Q: What is the difference in power rating between these two parts, and does it affect substitution?

A: The RC3225F4023CS is rated for 0.333W (1/3W), while the ERJ-14NF4023U is rated for 0.5W (1/2W). The higher power rating of the ERJ-14NF4023U means it can safely dissipate more heat. In substitution, a higher power rating is acceptable and does not create compatibility issues. The substitute will operate cooler in the same circuit, which is beneficial for reliability.

Q: Are the physical dimensions identical between these parts?

A: Both parts use the 1210 (3225 Metric) package format and are footprint-compatible. Minor dimensional variations exist: the RC3225F4023CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with a maximum seated height of 0.026" (0.66mm), while the ERJ-14NF4023U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with a maximum seated height of 0.028" (0.70mm). These variations fall within standard package tolerances and do not affect PCB assembly or circuit performance.

Q: What does "Not For New Designs" mean for the ERJ-14NF4023U?

A: "Not For New Designs" indicates that Panasonic has transitioned this part to end-of-life status and is not recommending it for incorporation into new product designs. Existing inventory may still be available, and the part remains suitable for maintenance, repair, or legacy system applications. For new designs, use the RC3225F4023CS or identify alternative parts from active product lines.

Q: Are there compliance differences between these two parts?

A: Yes. The RC3225F4023CS is ROHS3 compliant, meeting current environmental and regulatory standards. The ERJ-14NF4023U is RoHS non-compliant. If your application or market requires RoHS certification, use the RC3225F4023CS. The ERJ-14NF4023U carries AEC-Q200 automotive qualification, which may be relevant for automotive applications operating under RoHS exemptions.

Q: Can these parts be used interchangeably in the same circuit?

A: Yes, within the constraints of compliance requirements. Both parts have identical resistance values (402 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). The ERJ-14NF4023U's higher power rating and compatible physical dimensions make it electrically and mechanically interchangeable. Verify that RoHS compliance requirements do not restrict the use of ERJ-14NF4023U in your specific application.