RC3225F2873CS Equivalent & Substitute Parts

Part Overview

The RC3225F2873CS is a 287 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 726 units available in inventory.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit the use of alternative manufacturers' components that meet or exceed the electrical and mechanical specifications of the original part.

Substiute Parts

RC3225F2873CS

Samsung Electro-MechanicsIn Stock: 836RC3225F2873CS Datasheet

Current PartRFQ

ERJ-14NF2873U

Panasonic Electronic ComponentsIn Stock: 6936ERJ-14NF2873U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC3225F2873CS is permissible when the alternative component maintains the following critical parameters:

• Resistance Value: 287 kOhms (exact match required)
• Tolerance: ±1% (equal or tighter tolerance acceptable)
• Package Format: 1210 (3225 Metric) (physical and electrical compatibility)
• Composition: Thick Film (material consistency)
• Temperature Coefficient: ±100ppm/°C (thermal stability match)
• Operating Temperature Range: -55°C to 155°C (minimum requirement)
• Number of Terminations: 2 (standard configuration)
• RoHS Compliance: ROHS3 Compliant (regulatory requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (handling and storage compatibility)

The substitute part ERJ-14NF2873U from Panasonic Electronic Components satisfies all critical substitution parameters. The primary distinction is an elevated power rating of 0.5W (1/2W) compared to the original 0.333W (1/3W), which represents a design margin improvement and does not restrict substitution in applications requiring the original power specification.

Parameter Comparison

Engineering Selection Recommendations

The RC3225F2873CS remains the primary selection for new designs due to its Active product status. This designation indicates ongoing manufacturer support, continued availability, and compliance with current design standards.

The ERJ-14NF2873U substitute is electrically and mechanically compatible with the RC3225F2873CS. However, its "Not For New Designs" status indicates that Panasonic has discontinued active development and support for this component line. The ERJ-14NF2873U is suitable for replacement applications, legacy system maintenance, and field repairs where the original component is unavailable.

Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The dimensional variations between the two parts (width and height differences of 0.002" and 0.002" respectively) fall within standard PCB layout tolerances for 1210 package components and do not restrict interchangeability in standard applications.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF2873U replace the RC3225F2873CS in existing designs?

A: Yes. The ERJ-14NF2873U maintains identical resistance, tolerance, temperature coefficient, and operating temperature range. The increased power rating (0.5W versus 0.333W) provides additional thermal margin and does not restrict substitution in applications designed for the original component.

Q: What does "Not For New Designs" mean for the ERJ-14NF2873U?

A: This product status indicates that Panasonic has concluded active development and support for this component. New designs should prioritize the RC3225F2873CS or other components with Active status. The ERJ-14NF2873U remains suitable for replacement and maintenance of existing systems.

Q: Are there dimensional compatibility concerns between these parts?

A: The parts exhibit minor dimensional variations within the 1210 package specification. The RC3225F2873CS measures 0.126" L x 0.100" W with 0.026" maximum seated height. The ERJ-14NF2873U measures 0.126" L x 0.098" W with 0.028" maximum seated height. These differences are within standard PCB layout tolerances and do not affect interchangeability.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the RC3225F2873CS and ERJ-14NF2873U are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Both maintain Moisture Sensitivity Level 1 (Unlimited), indicating no special handling requirements.

Q: What is the difference in power rating between these components?

A: The RC3225F2873CS is rated for 0.333W (1/3W) power dissipation, while the ERJ-14NF2873U is rated for 0.5W (1/2W). The higher power rating of the substitute component provides increased thermal capacity and does not restrict its use in applications designed for the original lower-rated component.

Q: Are there packaging format differences?

A: Both components use the 1210 (3225 Metric) package format with two terminations. The RC3225F2873CS is available in standard packaging, while the ERJ-14NF2873U is supplied in Tape & Reel (TR) format. This difference affects handling and assembly processes but does not impact electrical or mechanical compatibility.