RC3225F1961CS Equivalent & Substitute Parts

Part Overview

The RC3225F1961CS is a 1.96 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 is designed for general-purpose applications requiring moisture-resistant performance. The part maintains Active product status with 905 units currently in stock.

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 RC3225F1961CS has documented substitute compatibility with the ERJ-14NF1961U from Panasonic Electronic Components.

Substiute Parts

RC3225F1961CS

Samsung Electro-MechanicsIn Stock: 982RC3225F1961CS Datasheet

Current PartRFQ

ERJ-14NF1961U

Panasonic Electronic ComponentsIn Stock: 6728ERJ-14NF1961U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F1961CS is determined by strict alignment with the following critical parameters:

Electrical Compatibility Requirements:

• Resistance value must equal 1.96 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 format must be 1210 (3225 Metric)
• Number of terminations must be 2
• Physical dimensions must be compatible with 1210 footprint specifications

Material & Composition Requirements:

• Composition must be Thick Film
• Moisture Sensitivity Level must be 1 (Unlimited) or equivalent

Compliance Requirements:

• RoHS3 Compliant status required
• REACH Unaffected status required

The ERJ-14NF1961U from Panasonic meets all electrical, mechanical, and compliance criteria for direct substitution. While the ERJ-14NF1961U carries a higher power rating (0.5W vs. 0.333W), this represents a performance enhancement rather than a limitation, as the component can safely operate in applications designed for the lower-rated RC3225F1961CS.

Parameter Comparison

Engineering Selection Recommendations

Primary Component (RC3225F1961CS): The RC3225F1961CS maintains Active product status and is the preferred selection for new designs. This component is currently in stock with 905 units available. Samsung Electro-Mechanics continues to support this part for ongoing production and new applications.

Substitute Component (ERJ-14NF1961U): The ERJ-14NF1961U from Panasonic Electronic Components is electrically and mechanically equivalent to the RC3225F1961CS and carries ROHS3 and REACH compliance certifications. However, this part is designated "Not For New Designs," indicating that Panasonic has discontinued active development and support for this model. The ERJ-14NF1961U is suitable for replacement, repair, and legacy system applications where the RC3225F1961CS is unavailable.

Selection Criteria:

• Use RC3225F1961CS for new designs and applications requiring long-term component availability
• Use ERJ-14NF1961U only when RC3225F1961CS supply is constrained or unavailable
• Both components are suitable for applications operating within -55°C ~ 155°C temperature range
• Both components meet automotive and industrial compliance requirements (ROHS3, REACH)

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF1961U replace the RC3225F1961CS in existing designs?

A: Yes. The ERJ-14NF1961U is electrically and mechanically equivalent. Both components have identical resistance values (1.96 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and package format (1210). The ERJ-14NF1961U has a higher power rating (0.5W vs. 0.333W), which does not create compatibility issues in applications designed for the RC3225F1961CS.

Q: What is the difference in physical dimensions between these parts?

A: Both components use the 1210 (3225 Metric) package. The RC3225F1961CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with a maximum seated height of 0.026" (0.66mm). The ERJ-14NF1961U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with a maximum seated height of 0.028" (0.70mm). These dimensional variations are within standard 1210 package tolerances and do not affect PCB footprint compatibility.

Q: Are both components suitable for automotive applications?

A: The RC3225F1961CS is a general-purpose thick film resistor with ROHS3 compliance. The ERJ-14NF1961U carries AEC-Q200 automotive qualification, indicating enhanced reliability testing for automotive environments. Both components meet ROHS3 and REACH compliance requirements. Component selection should be based on specific application requirements and supply availability.

Q: Why is the ERJ-14NF1961U marked "Not For New Designs"?

A: This designation indicates that Panasonic has discontinued active development and support for this specific part number. While the component remains functionally equivalent and available in inventory (6684 units), Panasonic recommends using alternative part numbers for new designs. The RC3225F1961CS, with Active status, is the recommended choice for new applications.

Q: Can these components be used interchangeably in high-precision applications?

A: Both components have identical tolerance (±1%) and temperature coefficient (±100ppm/°C) specifications. They are suitable for applications requiring ±1% accuracy across the -55°C ~ 155°C operating range. Component selection should be based on application-specific requirements and long-term supply strategy rather than precision differences.

Q: What is the Moisture Sensitivity Level (MSL) for both components?

A: Both the RC3225F1961CS and ERJ-14NF1961U have MSL 1 (Unlimited), indicating unlimited shelf life without moisture-related degradation. These components do not require special moisture-control storage or handling procedures.