RC3225F8452CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F8452CS is a 84.5 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 are identified when equivalent electrical performance and mechanical compatibility can be maintained across the same resistance value, tolerance, package footprint, and operating temperature range. The primary substitute identified is the ERJ-14NF8452U from Panasonic Electronic Components, which maintains electrical equivalence while offering higher power rating and automotive-grade qualification.

Substiute Parts

RC3225F8452CS

Samsung Electro-MechanicsIn Stock: 920RC3225F8452CS Datasheet

Current PartRFQ

ERJ-14NF8452U

Panasonic Electronic ComponentsIn Stock: 2946ERJ-14NF8452U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F8452CS is determined by strict alignment of the following parameters:

Mandatory Matching Parameters:

• Resistance value: 84.5 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package footprint: 1210 (3225 Metric) (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match or wider range acceptable)
• Composition: Thick Film (exact match required)

Allowable Variation Parameters:

• Power rating: Equal to or greater than 0.333W (higher ratings are acceptable as they provide design margin)
• Moisture sensitivity level: MSL 1 or better (lower MSL values acceptable)
• Compliance certifications: RoHS3 compliance required; additional certifications (such as AEC-Q200) do not disqualify substitution

The identified substitute ERJ-14NF8452U meets all mandatory parameters while exceeding power rating specifications (0.5W versus 0.333W) and adding automotive-grade AEC-Q200 qualification.

Parameter Comparison

Engineering Selection Recommendations

RC3225F8452CS (Main Part): The RC3225F8452CS is the preferred selection for new designs. It maintains Active product status from Samsung Electro-Mechanics, ensuring continued availability and manufacturing support. This component is suitable for applications requiring standard 1/3W power dissipation with full RoHS3 compliance and unlimited moisture handling capability.

ERJ-14NF8452U (Substitute): The ERJ-14NF8452U from Panasonic Electronic Components is electrically and mechanically equivalent to the RC3225F8452CS. This substitute provides a higher power rating (0.5W versus 0.333W), offering additional thermal margin in power-dissipation-sensitive applications. The ERJ-14NF8452U carries AEC-Q200 automotive qualification, making it suitable for automotive and high-reliability applications.

However, the ERJ-14NF8452U is designated "Not For New Designs" by Panasonic. This status indicates the manufacturer is phasing out this component. Selection of this substitute should be limited to legacy system support, field replacements, or applications where automotive-grade qualification is a specific requirement and the main part is unavailable.

Compliance Considerations: Both parts maintain ROHS3 compliance and are REACH unaffected. Both are classified under ECCN EAR99 and HTSUS 8533.21.0030. Substitution does not introduce compliance risk.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF8452U be used as a direct replacement for the RC3225F8452CS in existing designs?

A: Yes, from an electrical and mechanical standpoint. Both components share identical resistance value (84.5 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and 1210 package footprint. The ERJ-14NF8452U's higher power rating (0.5W) and MSL 1 rating are compatible with or exceed the RC3225F8452CS specifications. However, the ERJ-14NF8452U's "Not For New Designs" status should be considered for long-term supply chain planning.

Q: What is the significance of the "Not For New Designs" status on the ERJ-14NF8452U?

A: This designation indicates that Panasonic is discontinuing or has discontinued active development and promotion of this component. While existing inventory may be available, future availability is not guaranteed. This status does not affect the component's electrical performance or reliability in current applications but signals that alternative sources should be identified for new product development.

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

A: Dimensional differences are minimal and compatible. The RC3225F8452CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with a maximum seated height of 0.026" (0.66mm). The ERJ-14NF8452U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with a maximum seated height of 0.028" (0.70mm). Both fit the standard 1210 (3225 Metric) footprint. The width difference (0.05mm) and height difference (0.04mm) are within typical PCB design tolerances and do not require layout modification.

Q: What does AEC-Q200 qualification on the ERJ-14NF8452U indicate?

A: AEC-Q200 is an automotive industry standard qualification for passive components. It certifies that the component meets stringent reliability, temperature cycling, and performance requirements for automotive applications. The RC3225F8452CS does not carry this certification. If AEC-Q200 qualification is a design requirement, the ERJ-14NF8452U is the appropriate selection.

Q: Can I use a higher power-rated resistor (0.5W) in place of a 0.333W (1/3W) component?

A: Yes. A higher power rating provides additional thermal margin and does not degrade performance in applications designed for lower power dissipation. The component will operate cooler and with greater safety margin. No circuit modification is required.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified under the same ECCN (EAR99) and HTSUS codes (8533.21.0030). No compliance risk is introduced by substitution.