RC3225F14R3CS Equivalent & Substitute Parts

Part Overview

The RC3225F14R3CS is a 14.3 Ohm ±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 is ROHS3 compliant with MSL 1 rating.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and performance envelope. Alternative sources become necessary due to inventory availability, supply chain optimization, or design phase transitions.

Substiute Parts

RC3225F14R3CS

Samsung Electro-MechanicsIn Stock: 876RC3225F14R3CS Datasheet

Current PartRFQ

ERJ-14NF14R3U

Panasonic Electronic ComponentsIn Stock: 11208ERJ-14NF14R3U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC3225F14R3CS is based on the following criteria:

Mandatory Matching Parameters:

• Resistance value: 14.3 Ohms (exact match required)
• Tolerance: ±1% (substitute tolerance must not exceed this value)
• Package footprint: 1210 (3225 Metric) (physical and electrical compatibility)
• Composition: Thick Film (ensures consistent electrical behavior)
• Temperature coefficient: ±100ppm/°C (temperature stability requirement)
• Operating temperature range: -55°C to 155°C (environmental specification)

Flexible Parameters:

• Power rating: Substitute must equal or exceed 0.333W; higher ratings are acceptable
• RoHS compliance: ROHS3 status required for regulatory alignment
• Moisture sensitivity: MSL 1 is acceptable; lower MSL values (higher numbers) are not suitable

The identified substitute ERJ-14NF14R3U from Panasonic Electronic Components meets all mandatory parameters while providing a higher power rating (0.5W) within the same package envelope. This represents a direct functional upgrade with enhanced thermal performance capability.

Parameter Comparison

Engineering Selection Recommendations

RC3225F14R3CS (Samsung Electro-Mechanics):

• Primary selection for new designs requiring Active product status
• Recommended when 0.333W power rating is the design specification
• Moisture-resistant construction suitable for standard industrial applications
• ROHS3 and REACH compliance confirmed

ERJ-14NF14R3U (Panasonic Electronic Components):

• Suitable for applications where higher thermal margin is beneficial (0.5W rating)
• Automotive AEC-Q200 qualification provides additional reliability assurance for demanding environments
• Product status is "Not For New Designs," limiting use to legacy system support or replacement scenarios
• Identical electrical performance with enhanced power dissipation capability
• ROHS3 and REACH compliance confirmed

Selection between these parts depends on design phase requirements and thermal performance margins. Both components satisfy the core electrical and mechanical specifications for 14.3 Ohm ±1% 1210 package applications.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF14R3U replace RC3225F14R3CS in existing designs?

A: Yes. The ERJ-14NF14R3U maintains identical resistance, tolerance, temperature coefficient, and operating temperature range. The higher power rating (0.5W vs. 0.333W) provides additional thermal margin without affecting circuit performance. Physical dimensions are compatible within PCB layout tolerances.

Q: What does "Not For New Designs" mean for the Panasonic part?

A: This product status indicates that Panasonic has transitioned this part to end-of-life or legacy support phase. It remains available for replacement and repair applications but is not recommended for new product development. The RC3225F14R3CS maintains Active status for new designs.

Q: Are the dimensional differences between these parts significant?

A: The dimensional variations (3.20mm x 2.55mm vs. 3.20mm x 2.50mm length; 0.66mm vs. 0.70mm height) are within standard PCB footprint tolerances for 1210 packages. Both components are mechanically compatible with standard 1210 land patterns.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both RC3225F14R3CS and ERJ-14NF14R3U are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Regulatory and environmental requirements are equivalent.

Q: Why does the Panasonic part have higher power rating in the same package?

A: The ERJ-14NF14R3U achieves 0.5W in the 1210 package through optimized thick film construction and thermal design. This represents a performance enhancement while maintaining the same footprint and electrical characteristics.

Q: Can I use these parts interchangeably in production?

A: Electrical interchangeability is confirmed. However, production transitions should account for the Panasonic part's "Not For New Designs" status. For ongoing production, the Samsung RC3225F14R3CS is the recommended primary source.