RC3225F5902CS Equivalent & Substitute Parts

Part Overview

The RC3225F5902CS is a 59 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 moisture sensitivity rating.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit alternative manufacturers meeting equivalent electrical and mechanical specifications. The RC3225F5902CS has documented substitute availability through Panasonic Electronic Components.

Substiute Parts

RC3225F5902CS

Samsung Electro-MechanicsIn Stock: 915RC3225F5902CS Datasheet

Current PartRFQ

ERJ-14NF5902U

Panasonic Electronic ComponentsIn Stock: 7705ERJ-14NF5902U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F5902CS is determined by strict alignment of the following parameters:

Critical Matching Parameters:

• Resistance value: 59 kOhms
• Tolerance: ±1%
• Package format: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

Allowable Variation:

• Power rating: The substitute part may exceed the original power specification (0.333W minimum requirement). Higher power ratings provide design margin and do not create incompatibility.
• Physical dimensions: Minor variations within the 1210 package specification are acceptable provided the component maintains the same footprint and termination count (2 terminations).

The ERJ-14NF5902U from Panasonic Electronic Components qualifies as a direct substitute based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (RC3225F5902CS): The RC3225F5902CS maintains Active product status and is recommended for new designs requiring Samsung Electro-Mechanics sourcing or when moisture-resistant thick film composition is specifically required. Current inventory of 852 pieces supports immediate availability.

Substitute Part (ERJ-14NF5902U): The ERJ-14NF5902U from Panasonic Electronic Components is electrically and mechanically equivalent for applications where the original part is unavailable. This substitute carries AEC-Q200 automotive qualification, which provides additional reliability assurance for demanding environments. However, the ERJ-14NF5902U is designated as "Not For New Designs," indicating Panasonic's intent to phase this specific model. The higher power rating (0.5W versus 0.333W) provides thermal margin in applications where the original specification is met.

Selection between these parts should be based on supply availability, lead time requirements, and whether automotive-grade qualification is beneficial to the application. Both parts satisfy the core electrical and mechanical requirements for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF5902U replace the RC3225F5902CS in existing designs?

A: Yes. The ERJ-14NF5902U meets all critical electrical parameters (59 kOhms ±1%, ±100ppm/°C, -55°C to 155°C operating range) and maintains identical package format (1210), composition (thick film), and termination count (2). Physical dimensions remain within acceptable tolerance for PCB footprint compatibility.

Q: What is the significance of the higher power rating on the substitute part?

A: The ERJ-14NF5902U is rated for 0.5W (1/2W) compared to the RC3225F5902CS at 0.333W (1/3W). This higher rating does not create incompatibility; it indicates the substitute component can dissipate more power without exceeding temperature limits. Applications designed for the original 0.333W specification will operate within the substitute's thermal envelope.

Q: Are there compliance differences between these parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. The ERJ-14NF5902U includes AEC-Q200 automotive qualification, which the RC3225F5902CS does not specify. This additional qualification does not prevent use in non-automotive applications.

Q: Why is the ERJ-14NF5902U marked "Not For New Designs"?

A: This designation indicates Panasonic's product lifecycle status for this specific model number. The part remains available for existing design support and replacement applications but is not recommended for new product development. Alternative Panasonic models with similar specifications may be available for new designs.

Q: Are the physical dimension differences significant?

A: No. Width variation (0.100" to 0.098") and height variation (0.026" to 0.028") remain within standard 1210 package tolerances and do not affect PCB footprint compatibility or assembly processes.

Q: Can both parts be used interchangeably in the same PCB assembly?

A: Yes, provided the PCB design accommodates the 1210 package format and the circuit design does not require specific manufacturer characteristics beyond the stated electrical parameters. Both parts share identical footprint requirements and termination configuration.