RC3225F2872CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F2872CS is a 28.7 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 881 pieces available. The part is designed for general-purpose applications requiring moisture-resistant thick film construction with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified when alternative manufacturers offer components with matching or superior electrical and mechanical specifications within the same package footprint and performance envelope. Substitutes become necessary due to supply chain considerations, lead time requirements, or design flexibility across multiple qualified suppliers.

Substiute Parts

RC3225F2872CS

Samsung Electro-MechanicsIn Stock: 936RC3225F2872CS Datasheet

Current PartRFQ

ERJ-14NF2872U

Panasonic Electronic ComponentsIn Stock: 7184ERJ-14NF2872U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC3225F2872CS is based on the following critical parameters that must remain constant or improve:

Mandatory Matching Parameters:

• Resistance value: 28.7 kOhms (exact match required)
• Tolerance: ±1% (equal or tighter tolerance acceptable)
• Package / Case: 1210 (3225 Metric) (physical footprint compatibility)
• Composition: Thick Film (material consistency)
• Temperature Coefficient: ±100ppm/°C (thermal stability)
• Operating Temperature Range: -55°C ~ 155°C (environmental envelope)
• RoHS Status: ROHS3 Compliant (regulatory requirement)

Parameters Allowing Substitution:

• Power Rating: Equal or higher power rating acceptable (0.333W or greater)
• Moisture Sensitivity Level: MSL 1 or better (lower MSL number acceptable)
• Packaging Format: Original packaging format may differ (Tape & Reel acceptable for equivalent function)

The identified substitute ERJ-14NF2872U meets all mandatory parameters with an improved power rating of 0.5W (1/2W), providing enhanced thermal margin while maintaining identical electrical characteristics and package dimensions.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: RC3225F2872CS

The RC3225F2872CS maintains Active product status from Samsung Electro-Mechanics, indicating ongoing manufacturer support and availability for new designs. This part is the preferred choice for new circuit designs and long-term production applications. Current inventory of 881 pieces supports immediate procurement requirements.

Secondary Selection: ERJ-14NF2872U

The ERJ-14NF2872U from Panasonic Electronic Components is electrically and mechanically compatible with the RC3225F2872CS. The substitute offers a higher power rating (0.5W versus 0.333W), providing additional thermal margin in applications where power dissipation approaches the original specification limit. However, this part carries "Not For New Designs" status, restricting its use to legacy system maintenance, design refresh cycles, or supply chain contingency scenarios.

Both parts maintain ROHS3 compliance and identical operating temperature ranges (-55°C ~ 155°C), ensuring regulatory and environmental compatibility. The primary distinction is product lifecycle status and packaging format (Tape & Reel for the substitute versus standard packaging for the main part).

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF2872U be used as a direct replacement for RC3225F2872CS in new designs?

A: No. While ERJ-14NF2872U is electrically and mechanically compatible, it carries "Not For New Designs" status. New designs should specify RC3225F2872CS. The substitute is appropriate only for legacy system support or temporary supply contingencies.

Q: What is the significance of the higher power rating (0.5W) in the substitute part?

A: The ERJ-14NF2872U's 0.5W rating (versus 0.333W in the main part) indicates higher thermal capacity. This allows the substitute to dissipate more power without exceeding temperature limits. In applications operating near the original 0.333W specification, the substitute provides additional safety margin but does not change electrical performance at normal operating currents.

Q: Are the physical dimensions identical between RC3225F2872CS and ERJ-14NF2872U?

A: Both parts use the 1210 (3225 Metric) package with nearly identical dimensions. RC3225F2872CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with 0.026" max height. ERJ-14NF2872U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with 0.028" max height. These minor variations (0.05mm width, 0.02mm height) do not affect PCB layout compatibility or mounting procedures.

Q: Does the packaging format difference (standard versus Tape & Reel) affect component performance?

A: No. Packaging format affects handling, storage, and assembly logistics only. Tape & Reel packaging (ERJ-14NF2872U) is standard for high-volume automated assembly. Component electrical and mechanical performance is identical regardless of packaging format.

Q: Are both parts RoHS3 compliant?

A: Yes. Both RC3225F2872CS and ERJ-14NF2872U are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level), meeting current regulatory requirements for lead-free and hazardous substance restrictions.

Q: What is the temperature coefficient significance for these parts?

A: Both parts specify ±100ppm/°C temperature coefficient, indicating resistance value changes by approximately 0.01% per degree Celsius across the -55°C ~ 155°C operating range. This specification is identical between main and substitute parts, ensuring equivalent thermal stability in temperature-sensitive applications.