RC3225F1913CS Equivalent & Substitute Parts

Part Overview

The RC3225F1913CS is a 191 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 are identified when equivalent electrical specifications and mechanical compatibility are maintained. The primary substitute listed is the ERJ-14NF1913U from Panasonic Electronic Components, which shares the same resistance value, tolerance, package format, and operating temperature range while offering increased power rating and automotive-grade qualification.

Substiute Parts

RC3225F1913CS

Samsung Electro-MechanicsIn Stock: 973RC3225F1913CS Datasheet

Current PartRFQ

ERJ-14NF1913U

Panasonic Electronic ComponentsIn Stock: 20620ERJ-14NF1913U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F1913CS is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 191 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package format: 1210 (3225 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C to 155°C (minimum requirement)
• Number of Terminations: 2 (exact match required)

Allowable Variation Parameters:

• Power Rating: Substitute parts may have equal or higher power rating than the main part (0.333W minimum)
• Physical dimensions: Minor variations within package specification tolerance are acceptable
• Moisture Sensitivity Level: Equal or better rating acceptable
• RoHS/REACH compliance: Equal or better status acceptable
• Product Status: Active or Not For New Designs both acceptable for substitution purposes

The ERJ-14NF1913U meets all critical matching parameters and exceeds the power rating specification (0.5W vs. 0.333W), making it a valid electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

RC3225F1913CS (Main Part - Active Status): The RC3225F1913CS is the primary component choice for new designs. It maintains Active product status with full availability and Samsung Electro-Mechanics manufacturing support. This part is suitable for applications requiring 191 kOhms resistance with ±1% tolerance and 0.333W power dissipation in standard industrial and commercial environments.

ERJ-14NF1913U (Substitute - Not For New Designs Status): The ERJ-14NF1913U from Panasonic Electronic Components is electrically and mechanically compatible with the RC3225F1913CS. This substitute is qualified to automotive AEC-Q200 standards and provides higher power rating capability (0.5W vs. 0.333W). However, the part carries "Not For New Designs" status, indicating it is suitable only for legacy system maintenance, field replacements, or applications where existing inventory must be utilized.

Compliance Considerations: Both parts maintain ROHS3 compliance and REACH Unaffected status. Both achieve MSL 1 (Unlimited) moisture sensitivity rating. Selection between these parts should be based on product lifecycle requirements and design phase status rather than electrical or mechanical constraints.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF1913U be used as a direct replacement for the RC3225F1913CS in new designs?

A: The ERJ-14NF1913U is electrically and mechanically compatible with the RC3225F1913CS. However, the substitute carries "Not For New Designs" status. For new designs, the RC3225F1913CS (Active status) is the recommended choice. The ERJ-14NF1913U is appropriate for legacy system support and field replacements only.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by exact matching of: resistance value (191 kOhms), tolerance (±1%), package format (1210/3225 Metric), composition (Thick Film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and termination count (2). Power rating may be equal or higher in the substitute part.

Q: Are there dimensional differences between the RC3225F1913CS and ERJ-14NF1913U?

A: Minor dimensional variations exist within package specification tolerance. The RC3225F1913CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with 0.026" (0.66mm) maximum seated height. The ERJ-14NF1913U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with 0.028" (0.70mm) maximum seated height. Both dimensions remain within 1210 package specification and are compatible with standard PCB layouts.

Q: What is the difference between the moisture resistant feature of the RC3225F1913CS and the automotive AEC-Q200 qualification of the ERJ-14NF1913U?

A: The RC3225F1913CS specifies moisture resistant composition as a feature. The ERJ-14NF1913U carries automotive AEC-Q200 qualification, which is a separate automotive industry reliability standard. Both parts achieve MSL 1 (Unlimited) moisture sensitivity rating. These are different feature sets; AEC-Q200 qualification does not replace moisture resistance specification, and vice versa.

Q: Can the higher power rating of the ERJ-14NF1913U (0.5W vs. 0.333W) cause issues in circuits designed for the RC3225F1913CS?

A: No. A substitute part with higher power rating does not create circuit compatibility issues. The higher power rating indicates greater thermal capability and does not affect electrical performance in circuits designed for the lower-rated component. The substitute will operate safely within the original circuit specifications.

Q: Are both parts suitable for the full -55°C to 155°C operating temperature range?

A: Yes. Both the RC3225F1913CS and ERJ-14NF1913U are rated for -55°C to 155°C operating temperature range with ±100ppm/°C temperature coefficient. Both parts maintain specified tolerance and performance across this full temperature range.

Q: What packaging formats are available for these parts?

A: The RC3225F1913CS is available in standard packaging format. The ERJ-14NF1913U is supplied in Tape & Reel (TR) format. Both parts use the 1210 (3225 Metric) package case. Packaging format selection depends on assembly process requirements and volume considerations.