RC3225F183CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F183CS is an 18 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.333W (1/3W) power dissipation in a 1210 (3225 Metric) package. This component is classified as Active product status with full RoHS3 compliance and MSL Level 1 moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across alternative manufacturers while meeting or exceeding the original performance envelope.

Substiute Parts

RC3225F183CS

Samsung Electro-MechanicsIn Stock: 1014RC3225F183CS Datasheet

Current PartRFQ

RC1210FR-0718KL

YAGEOIn Stock: 10735RC1210FR-0718KL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F183CS is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Resistance value must equal 18 kOhms
• Tolerance must be ±1% or tighter
• Temperature coefficient must be ±100ppm/°C or better
• Operating temperature range must encompass -55°C ~ 155°C

Mechanical Compatibility Requirements:

• Package / Case must be 1210 (3225 Metric)
• Composition must be Thick Film
• Number of terminations must be 2

Compliance Requirements:

• RoHS3 Compliant status required
• MSL Level 1 or equivalent moisture rating required
• REACH Unaffected status required

Power Rating Consideration: Substitute parts with equal or higher power ratings (≥0.333W) are acceptable, as they provide equivalent or superior thermal performance in the same package footprint.

The RC1210FR-0718KL from YAGEO meets all substitution criteria with an upgraded power rating of 0.5W (1/2W), providing additional thermal margin while maintaining identical electrical specifications and package dimensions.

Parameter Comparison

Engineering Selection Recommendations

The RC1210FR-0718KL from YAGEO is a direct functional equivalent to the RC3225F183CS. Both components maintain Active product status and full compliance with RoHS3 and REACH requirements. The YAGEO substitute provides identical electrical performance with an upgraded power dissipation rating (0.5W versus 0.333W), which offers enhanced thermal performance margin in applications where the original specification is met or exceeded.

Physical dimensions are comparable within manufacturing tolerances (RC3225F183CS: 3.20mm × 2.55mm × 0.66mm maximum height; RC1210FR-0718KL: 3.10mm × 2.60mm × 0.60mm maximum height), confirming mechanical interchangeability in standard 1210 footprint PCB layouts.

Both components are supplied with identical environmental ratings (MSL Level 1, Unlimited moisture sensitivity) and identical temperature coefficient specifications (±100ppm/°C), ensuring equivalent performance stability across the full operating temperature range of -55°C to 155°C.

Frequently Asked Questions (FAQ)

Q: Can RC1210FR-0718KL replace RC3225F183CS in all applications?

A: Yes. The YAGEO RC1210FR-0718KL meets all electrical, mechanical, and compliance requirements for direct substitution. The higher power rating (0.5W versus 0.333W) provides additional thermal margin and does not create incompatibility.

Q: Are the physical dimensions identical?

A: Dimensions are comparable within standard manufacturing tolerances. RC3225F183CS measures 3.20mm L × 2.55mm W × 0.66mm H (max). RC1210FR-0718KL measures 3.10mm L × 2.60mm W × 0.60mm H (max). Both fit standard 1210 footprint PCB layouts without modification.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both components carry MSL Level 1 (Unlimited) moisture sensitivity rating, indicating no moisture-related handling restrictions during assembly and storage.

Q: Are both parts RoHS3 compliant?

A: Yes. Both RC3225F183CS and RC1210FR-0718KL are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the difference in power rating, and does it matter?

A: RC3225F183CS is rated at 0.333W (1/3W); RC1210FR-0718KL is rated at 0.5W (1/2W). The higher rating in the substitute part provides superior thermal performance without creating any electrical incompatibility. Applications designed for the original 0.333W specification will operate within safe margins with the 0.5W substitute.

Q: Are the temperature coefficients identical?

A: Yes. Both components specify ±100ppm/°C temperature coefficient and operate across the identical temperature range of -55°C to 155°C, ensuring equivalent frequency stability and performance characteristics.

Q: What packaging formats are available?

A: RC3225F183CS is supplied in standard packaging. RC1210FR-0718KL is available in Tape & Reel (TR) format, which is standard for high-volume manufacturing and automated assembly processes.