RC3225F2551CS Equivalent & Substitute Parts

Part Overview

The RC3225F2551CS is a 2.55 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 maintains Active product status and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Substitute components become necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit alternative specifications within compatible electrical and mechanical parameters. The RC3225F2551CS can be substituted with components that maintain identical resistance value, tolerance, package dimensions, and operating temperature range while accommodating variations in power rating and application-specific certifications.

Substiute Parts

RC3225F2551CS

Samsung Electro-MechanicsIn Stock: 969RC3225F2551CS Datasheet

Current PartRFQ

ERJ-14NF2551U

Panasonic Electronic ComponentsIn Stock: 14747ERJ-14NF2551U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC3225F2551CS is determined by strict alignment of core electrical and mechanical parameters. The following criteria establish valid substitute relationships:

Mandatory Matching Parameters:

• Resistance value: 2.55 kOhms (exact match required)
• Tolerance: ±1% (substitute tolerance must not exceed this specification)
• Package format: 1210 (3225 Metric) (physical footprint compatibility)
• Composition: Thick Film (material technology must remain consistent)
• Temperature coefficient: ±100ppm/°C (thermal stability requirement)
• Operating temperature range: -55°C to 155°C (environmental operating envelope)

Allowable Variation Parameters:

• Power rating: Substitute components may have equal or higher power dissipation ratings (0.333W or greater)
• Packaging format: Tape & Reel (TR) or bulk packaging acceptable for equivalent electrical performance
• Product status: Active or Not For New Designs status does not preclude substitution if electrical specifications align
• Application certifications: Automotive AEC-Q200 or industrial certifications represent additional qualification levels and do not prevent substitution

The ERJ-14NF2551U from Panasonic Electronic Components qualifies as a valid substitute based on matching resistance, tolerance, package dimensions, composition, temperature coefficient, and operating temperature range. The higher power rating (0.5W versus 0.333W) represents a design margin improvement rather than a compatibility limitation.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-14NF2551U represents a valid substitute for the RC3225F2551CS based on electrical and mechanical parameter alignment. Selection between these components should be based on the following engineering considerations:

RC3225F2551CS (Samsung Electro-Mechanics):

• Active product status supports long-term availability and supply chain continuity
• Specified power rating of 0.333W matches typical application requirements for this resistance value
• Moisture Resistant feature designation provides explicit environmental protection specification
• Current inventory of 898 pieces supports immediate procurement

ERJ-14NF2551U (Panasonic Electronic Components):

• Higher power rating of 0.5W provides additional thermal margin in power dissipation applications
• Automotive AEC-Q200 qualification indicates enhanced reliability testing and quality assurance
• Not For New Designs status indicates this component is maintained for legacy system support and replacement applications
• Significantly higher inventory of 14,704 pieces supports volume procurement and extended availability
• Tape & Reel packaging format optimizes automated assembly processes

Both components maintain identical electrical performance specifications and physical compatibility. Selection should prioritize the RC3225F2551CS for new design implementations requiring Active product status. The ERJ-14NF2551U serves as an effective alternative for supply chain contingency, legacy system maintenance, or applications requiring automotive-grade qualification.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF2551U replace the RC3225F2551CS in existing designs?

A: Yes. The ERJ-14NF2551U maintains identical resistance value (2.55 kOhms), tolerance (±1%), package format (1210), composition (Thick Film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). The higher power rating (0.5W versus 0.333W) represents a design improvement and does not create compatibility issues. Physical dimensions are within acceptable tolerance for PCB footprint compatibility.

Q: What is the significance of the "Not For New Designs" status on the ERJ-14NF2551U?

A: This designation indicates that Panasonic maintains the ERJ-14NF2551U for existing customer applications and replacement requirements but does not recommend it for new product development. This status does not affect electrical performance or substitution validity. New designs should prioritize the RC3225F2551CS (Active status) when supply permits.

Q: Are there dimensional differences between these components?

A: Minor dimensional variations exist within acceptable tolerance. The RC3225F2551CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with maximum seated height of 0.026" (0.66mm). The ERJ-14NF2551U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with maximum seated height of 0.028" (0.70mm). These variations are negligible for standard PCB assembly and do not affect component placement or electrical performance.

Q: Does the Automotive AEC-Q200 qualification on the ERJ-14NF2551U affect substitution?

A: No. AEC-Q200 qualification represents an additional quality and reliability certification that exceeds standard industrial requirements. A component with automotive qualification can substitute for one without such certification. The RC3225F2551CS does not carry automotive designation but remains fully compatible from an electrical and mechanical standpoint.

Q: What packaging formats are available for these components?

A: The RC3225F2551CS is available in standard packaging (format not specified in documentation). The ERJ-14NF2551U is supplied in Tape & Reel (TR) format, which is optimized for automated pick-and-place assembly. Both formats contain identical electrical components and are interchangeable from a functional perspective.

Q: Are both components RoHS3 compliant?

A: Yes. Both the RC3225F2551CS and ERJ-14NF2551U maintain ROHS3 compliance and are REACH Unaffected. Both components carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no moisture sensitivity restrictions during storage or handling.

Q: Which component should be selected for supply chain continuity?

A: The ERJ-14NF2551U offers significantly higher inventory availability (14,704 pieces versus 898 pieces) and supports extended procurement timelines. For applications requiring immediate availability or volume production, the ERJ-14NF2551U provides superior supply chain assurance. The RC3225F2551CS should be prioritized for new designs when supply constraints do not exist.