RC3225F1653CS Equivalent & Substitute Parts

Part Overview

The RC3225F1653CS is a 165 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 is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

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 RC3225F1653CS has documented substitute availability through Panasonic Electronic Components.

Substiute Parts

RC3225F1653CS

Samsung Electro-MechanicsIn Stock: 1198RC3225F1653CS Datasheet

Current PartRFQ

ERJ-14NF1653U

Panasonic Electronic ComponentsIn Stock: 4779ERJ-14NF1653U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F1653CS is determined by strict alignment with the following core parameters:

Critical Matching Parameters:

• Resistance value: 165 kOhms
• Tolerance: ±1%
• Package format: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• Termination count: 2
• RoHS3 compliance

Allowable Variation:

• Power rating may exceed the original specification (0.333W minimum required)
• Physical dimensions may vary within standard 1210 package tolerances
• Product status may differ (Active vs. Not For New Designs)
• Additional certifications (such as AEC-Q200) do not disqualify substitution

The ERJ-14NF1653U from Panasonic Electronic Components qualifies as a direct substitute based on matching all critical parameters while offering increased power rating (0.5W vs. 0.333W) and automotive-grade certification.

Parameter Comparison

Engineering Selection Recommendations

RC3225F1653CS (Samsung Electro-Mechanics): Select this part for new designs requiring active product status with standard industrial-grade specifications. The component maintains full RoHS3 compliance and unlimited moisture tolerance. Current inventory availability is 1,095 pieces.

ERJ-14NF1653U (Panasonic Electronic Components): This substitute is suitable for applications where increased power dissipation margin (0.5W vs. 0.333W) provides design flexibility or where automotive-grade AEC-Q200 certification is beneficial. The part carries "Not For New Designs" status, indicating it is available for legacy system support and replacement applications. Current inventory availability is 4,692 pieces. Physical dimensions remain compatible with 1210 package PCB footprints, with maximum height variation of 0.002" (0.04mm).

Both parts satisfy identical electrical specifications for resistance, tolerance, temperature coefficient, and operating range. Selection between them depends on product lifecycle requirements and inventory availability rather than functional performance differences.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF1653U replace RC3225F1653CS in new product designs?

A: Electrical substitution is valid based on matching resistance, tolerance, temperature coefficient, and operating range. However, the ERJ-14NF1653U carries "Not For New Designs" status from the manufacturer. Design decisions should account for long-term component availability and supply chain strategy.

Q: What is the significance of the higher power rating on the ERJ-14NF1653U?

A: The ERJ-14NF1653U is rated for 0.5W compared to the RC3225F1653CS at 0.333W. This higher rating provides additional thermal margin in applications where the original 0.333W specification is adequate. The substitute will not degrade performance in circuits designed for the lower power rating.

Q: Are there physical compatibility concerns between these parts?

A: Both components use the 1210 (3225 Metric) package format with compatible PCB footprints. Dimensional variations are minimal: length is identical at 0.126" (3.20mm), width differs by 0.002" (0.05mm), and height differs by 0.002" (0.04mm). These tolerances fall within standard 1210 package specifications and do not affect PCB assembly or functionality.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both RC3225F1653CS and ERJ-14NF1653U are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control. Both carry MSL 1 (unlimited moisture sensitivity). The ERJ-14NF1653U includes additional AEC-Q200 automotive certification, which does not conflict with standard industrial applications.

Q: What is the packaging difference between these parts?

A: The RC3225F1653CS is supplied in standard packaging format. The ERJ-14NF1653U is supplied in Tape & Reel (TR) format, which is standard for high-volume automated assembly. This packaging difference does not affect component performance or compatibility.