RC3225F4423CS Equivalent & Substitute Parts

Part Overview

The RC3225F4423CS is a 442 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 with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status and carries ROHS3 compliance certification.

Substitute parts become necessary when the primary component experiences supply constraints, inventory limitations, or when design requirements permit alternative manufacturers meeting equivalent electrical and mechanical specifications. The RC3225F4423CS has been identified with one direct substitute option that maintains critical parameter compatibility.

Substiute Parts

RC3225F4423CS

Samsung Electro-MechanicsIn Stock: 1172RC3225F4423CS Datasheet

Current PartRFQ

ERJ-14NF4423U

Panasonic Electronic ComponentsIn Stock: 8027ERJ-14NF4423U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F4423CS is determined by strict adherence to the following parameters:

Critical Parameters (Must Match):

• Resistance value: 442 kOhms
• Package format: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• Moisture sensitivity level: MSL 1

Acceptable Variation Parameters:

• Tolerance: ±1% or better (lower tolerance values are acceptable)
• Power rating: Equal to or greater than 0.333W (higher power ratings are acceptable as they provide additional thermal margin)
• Packaging format: Tape & Reel acceptable for equivalent component specifications

The ERJ-14NF4423U from Panasonic Electronic Components qualifies as a substitute based on matching all critical parameters while providing a higher power rating (0.5W versus 0.333W), which represents an acceptable upgrade in thermal capability.

Parameter Comparison

Engineering Selection Recommendations

RC3225F4423CS (Samsung Electro-Mechanics):

• Product Status: Active
• Compliance: ROHS3 Compliant, REACH Unaffected
• Recommended for new designs requiring Samsung component qualification or when ROHS3 compliance is explicitly specified
• Current inventory: 1099 pieces available

ERJ-14NF4423U (Panasonic Electronic Components):

• Product Status: Not For New Designs
• Compliance: RoHS non-compliant, REACH Unaffected
• Automotive qualification: AEC-Q200 certified
• Suitable for legacy design maintenance, repair, or applications where automotive-grade components are required
• Current inventory: 7940 pieces available
• Note: This component is designated "Not For New Designs" and does not meet ROHS3 requirements

For new design implementations, the RC3225F4423CS remains the primary selection. The ERJ-14NF4423U serves as a substitute only in applications where legacy compatibility is required or where the higher power rating (0.5W) and automotive qualification provide specific design advantages that outweigh the compliance limitations.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF4423U replace RC3225F4423CS in new product designs?

A: No. The ERJ-14NF4423U carries "Not For New Designs" status and is RoHS non-compliant. New designs must use RC3225F4423CS or equivalent components meeting current compliance standards.

Q: What is the significance of the higher power rating on the ERJ-14NF4423U (0.5W vs 0.333W)?

A: The higher power rating indicates greater thermal capability. In applications where the RC3225F4423CS dissipates 0.333W or less, the ERJ-14NF4423U operates with additional thermal margin. This does not change circuit function but provides enhanced reliability in thermal stress conditions.

Q: Are the physical dimensions compatible between these two parts?

A: Both components use the 1210 (3225 Metric) package with matching PCB footprints. The RC3225F4423CS measures 3.20mm x 2.55mm with 0.66mm maximum height, while the ERJ-14NF4423U measures 3.20mm x 2.50mm with 0.70mm maximum height. These dimensional differences are within standard PCB design tolerances and do not affect interchangeability at the land pattern level.

Q: What does AEC-Q200 certification on the ERJ-14NF4423U indicate?

A: AEC-Q200 is an automotive industry qualification standard. This certification indicates the ERJ-14NF4423U has been tested and validated for automotive applications. This qualification is not present on the RC3225F4423CS.

Q: Can I use ERJ-14NF4423U in existing RC3225F4423CS applications?

A: Substitution is possible only if the application does not require ROHS3 compliance and if the legacy design permits use of non-compliant components. The electrical and thermal characteristics are compatible, but compliance requirements must be verified with your quality and regulatory teams.

Q: Why does the RC3225F4423CS show "Active" status while ERJ-14NF4423U shows "Not For New Designs"?

A: Product status reflects manufacturer support and compliance posture. Active status indicates ongoing manufacturing and support for new designs. "Not For New Designs" indicates the manufacturer is phasing out the component and recommends alternatives for new applications, though existing inventory remains available for legacy support.