RC3225F4873CS Equivalent & Substitute Parts

Part Overview

The RC3225F4873CS is a 487 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 currently in stock with 1009 units available. The part is moisture resistant and suitable for applications requiring precision resistive elements across industrial and commercial temperature ranges. Substitute parts are identified based on matching resistance value, tolerance, package dimensions, and electrical performance characteristics within acceptable parameter ranges.

Substiute Parts

RC3225F4873CS

Samsung Electro-MechanicsIn Stock: 1055RC3225F4873CS Datasheet

Current PartRFQ

ERJ-14NF4873U

Panasonic Electronic ComponentsIn Stock: 15717ERJ-14NF4873U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F4873CS is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 487 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 (0.333W or greater)
• Physical dimensions: Minor variations within standard 1210 package specifications are acceptable
• Packaging format: Original part uses standard packaging; substitutes may use alternative packaging formats (Tape & Reel)
• Compliance certifications: Substitute parts must maintain ROHS3 compliance and MSL 1 rating

The identified substitute ERJ-14NF4873U meets all mandatory parameters and exceeds the power rating specification, making it electrically and mechanically compatible with the RC3225F4873CS.

Parameter Comparison

Engineering Selection Recommendations

RC3225F4873CS (Samsung Electro-Mechanics): This part maintains Active product status, indicating ongoing manufacturer support and availability. It is suitable for new design implementations and applications requiring long-term component availability. The moisture-resistant thick film construction and ROHS3 compliance support deployment in standard industrial and commercial environments.

ERJ-14NF4873U (Panasonic Electronic Components): This substitute part is classified as Not For New Designs, indicating the manufacturer has discontinued active support for new applications. However, it remains electrically and mechanically compatible with the RC3225F4873CS. The ERJ-14NF4873U provides a higher power rating (0.5W versus 0.333W), offering additional thermal margin in applications where power dissipation is a consideration. The AEC-Q200 automotive qualification provides enhanced reliability documentation. This part is appropriate for legacy system maintenance, repair, or applications where automotive-grade specifications are required.

Both parts maintain identical resistance, tolerance, temperature coefficient, and operating temperature specifications. Physical dimensions are within standard 1210 package tolerances. Selection between these parts depends on application lifecycle requirements and whether new design qualification or legacy system support is the primary objective.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF4873U be used as a direct replacement for RC3225F4873CS in existing designs?

A: Yes. The ERJ-14NF4873U is electrically and mechanically compatible with the RC3225F4873CS. Both parts share identical resistance (487 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and 1210 package dimensions. Physical dimensions vary by less than 0.002" in length and 0.002" in height, which is within standard 1210 package tolerances. The higher power rating (0.5W versus 0.333W) does not create compatibility issues.

Q: What is the significance of the "Not For New Designs" status on the ERJ-14NF4873U?

A: This designation indicates that Panasonic has discontinued active development and qualification of this part for new applications. The part remains available for existing inventory and legacy system support. For new product designs, the RC3225F4873CS (Active status) is the recommended selection to ensure long-term manufacturer support and component availability.

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

A: Dimensional differences are minimal and within standard 1210 package specifications. The RC3225F4873CS measures 0.126" L x 0.100" W with a maximum seated height of 0.026". The ERJ-14NF4873U measures 0.126" L x 0.098" W with a maximum seated height of 0.028". These variations (0.002" width difference, 0.002" height difference) do not require PCB layout modifications for standard applications.

Q: What does the AEC-Q200 qualification on the ERJ-14NF4873U indicate?

A: AEC-Q200 is an automotive industry standard qualification that documents enhanced reliability testing and performance validation. This certification is relevant for applications requiring automotive-grade component specifications. The RC3225F4873CS does not carry this designation but meets ROHS3 compliance and standard industrial reliability requirements.

Q: Are both parts suitable for moisture-sensitive applications?

A: Yes. Both the RC3225F4873CS and ERJ-14NF4873U carry Moisture Sensitivity Level (MSL) 1 rating, indicating unlimited moisture resistance. The RC3225F4873CS is explicitly specified as moisture resistant. Both parts are suitable for applications without moisture-related constraints.

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

A: The RC3225F4873CS is rated at 0.333W (1/3W), while the ERJ-14NF4873U is rated at 0.5W (1/2W). The higher power rating on the ERJ-14NF4873U provides additional thermal margin and allows the component to dissipate more power without exceeding temperature limits. In applications where the RC3225F4873CS operates within its power specification, the ERJ-14NF4873U will operate with lower junction temperature, potentially extending component life. This difference does not affect circuit electrical performance when both parts operate within their respective power ratings.