RC3225F5231CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F5231CS is a 5.23 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 with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with 853 units currently in stock.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit alternative manufacturers while maintaining electrical and mechanical compatibility. The RC3225F5231CS has been identified with one primary substitute option that shares the same resistance value, tolerance, and package footprint.

Substiute Parts

RC3225F5231CS

Samsung Electro-MechanicsIn Stock: 903RC3225F5231CS Datasheet

Current PartRFQ

ERJ-14NF5231U

Panasonic Electronic ComponentsIn Stock: 2339ERJ-14NF5231U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC3225F5231CS is based on strict electrical and mechanical parameter matching:

Primary Substitution Criteria (Non-Negotiable):

• Resistance value: 5.23 kOhms
• Tolerance: ±1%
• Package: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C to 155°C
• RoHS3 Compliance

Secondary Substitution Criteria (Acceptable Variations):

• Power Rating: Substitute must equal or exceed 0.333W minimum
• Manufacturer: Different manufacturer acceptable if all electrical parameters match
• Product Status: Active or Not For New Designs both acceptable for substitution purposes
• Packaging Format: Tape & Reel acceptable as alternative to standard packaging

The identified substitute ERJ-14NF5231U meets all primary criteria and exceeds the power rating specification (0.5W vs. 0.333W), making it a valid electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

RC3225F5231CS (Samsung Electro-Mechanics) - Primary Selection:

• Active product status ensures continued availability and manufacturer support
• 853 units in current inventory provide immediate supply security
• Moisture-resistant construction with MSL 1 rating suitable for standard PCB assembly processes
• ROHS3 and REACH compliance confirmed for regulated applications

ERJ-14NF5231U (Panasonic Electronic Components) - Substitute Selection:

• Meets all electrical parameter requirements with identical resistance, tolerance, and temperature characteristics
• Higher power rating (0.5W vs. 0.333W) provides thermal margin in applications with power dissipation concerns
• AEC-Q200 automotive qualification provides additional reliability assurance for demanding environments
• Product status "Not For New Designs" indicates mature component; suitable for replacement and sustaining engineering applications
• 2231 units in inventory provide substantial supply availability
• Tape & Reel packaging compatible with automated assembly processes
• Identical package footprint (1210) ensures direct PCB layout compatibility with minimal dimensional variation

Both components are suitable for direct substitution in circuits requiring 5.23 kOhms ±1% thick film resistors in 1210 package format. Selection between primary and substitute should be based on supply availability, lead time requirements, and application-specific thermal or reliability considerations.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF5231U replace RC3225F5231CS in existing designs?

A: Yes. Both components share identical electrical specifications (5.23 kOhms ±1% tolerance, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range) and package footprint (1210 / 3225 Metric). The substitute's higher power rating (0.5W vs. 0.333W) is compatible with applications designed for the original component.

Q: What is the significance of the power rating difference?

A: The RC3225F5231CS is rated for 0.333W (1/3W) while ERJ-14NF5231U is rated for 0.5W (1/2W). In circuit applications, the substitute's higher rating provides additional thermal capability without affecting electrical performance. Applications designed for 0.333W operation will function identically with the 0.5W substitute.

Q: Are there physical compatibility concerns between these parts?

A: Dimensions are nearly identical. RC3225F5231CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with 0.026" maximum seated height. ERJ-14NF5231U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with 0.028" maximum seated height. These minimal variations (0.05mm width, 0.04mm height) are within standard PCB assembly tolerances and do not affect land pattern compatibility.

Q: What does "Not For New Designs" status mean for the substitute?

A: This designation indicates the ERJ-14NF5231U is a mature product that Panasonic is not promoting for new circuit designs. However, it remains fully functional and suitable for replacement, repair, and sustaining engineering applications. The component continues to meet all published electrical and reliability specifications.

Q: Are both components RoHS compliant?

A: Yes. Both RC3225F5231CS and ERJ-14NF5231U are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for restricted substances in electronic components.

Q: What is the difference between standard packaging and Tape & Reel format?

A: ERJ-14NF5231U is supplied in Tape & Reel (TR) format, which is standard for automated pick-and-place assembly. The component specifications and performance are identical to other packaging formats. Tape & Reel packaging is compatible with standard SMD assembly equipment.

Q: Can these resistors be used interchangeably in automotive applications?

A: The ERJ-14NF5231U carries AEC-Q200 automotive qualification, indicating it meets automotive industry reliability standards. The RC3225F5231CS does not specify automotive qualification. For automotive applications, ERJ-14NF5231U is the preferred choice. For non-automotive applications, both components are functionally equivalent.