RC3225F1911CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F1911CS is a 1.91 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package format with 0.333W power rating. This component is classified as Active product status and is currently in stock with 640 pieces available. The part is designed for general-purpose applications requiring moisture-resistant thick film construction with tight tolerance specifications.

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 RC3225F1911CS has documented substitute availability through Panasonic Electronic Components.

Substiute Parts

RC3225F1911CS

Samsung Electro-MechanicsIn Stock: 660RC3225F1911CS Datasheet

Current PartRFQ

ERJ-14NF1911U

Panasonic Electronic ComponentsIn Stock: 18467ERJ-14NF1911U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F1911CS is determined by strict alignment of the following parameters:

Critical Matching Parameters (Non-Negotiable):

• Resistance Value: 1.91 kOhms
• Tolerance: ±1%
• Package / Case: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Sensitivity Level: 1 (Unlimited)
• RoHS Status: ROHS3 Compliant

Allowable Variation Parameter:

• Power Rating: The substitute may exceed the original 0.333W specification, as higher power ratings provide equivalent or superior performance in the same package footprint without compromising circuit compatibility.

The ERJ-14NF1911U from Panasonic Electronic Components qualifies as a direct substitute based on these criteria. All critical electrical and mechanical parameters align with the RC3225F1911CS specification. The ERJ-14NF1911U provides 0.5W power rating, which exceeds the original 0.333W requirement while maintaining identical package dimensions and electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Component (RC3225F1911CS): The RC3225F1911CS maintains Active product status and is recommended for new designs when supply availability permits. This component is currently in stock with 640 pieces available, supporting immediate procurement requirements.

Substitute Component (ERJ-14NF1911U): The ERJ-14NF1911U is classified as Not For New Designs by Panasonic Electronic Components. This designation indicates the part is available for existing design support and replacement applications but should not be selected for new product development. However, the ERJ-14NF1911U remains electrically and mechanically compatible with the RC3225F1911CS for direct substitution in established applications.

Compliance Basis: Both components maintain ROHS3 compliance and REACH Unaffected status, supporting use in regulated markets and applications with environmental compliance requirements. The ERJ-14NF1911U includes AEC-Q200 automotive qualification, providing additional reliability assurance for automotive and high-reliability applications.

Selection Logic:

• Use RC3225F1911CS for new designs and when supply is available
• Use ERJ-14NF1911U for replacement, repair, and legacy design support
• Both parts are suitable for direct PCB substitution without layout modifications

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF1911U replace the RC3225F1911CS in existing designs?

A: Yes. The ERJ-14NF1911U is electrically and mechanically compatible with the RC3225F1911CS. Both components share identical resistance value (1.91 kOhms), tolerance (±1%), package format (1210), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The ERJ-14NF1911U provides higher power rating (0.5W vs. 0.333W), which does not create compatibility issues in applications designed for the original component.

Q: What is the significance of the "Not For New Designs" status on the ERJ-14NF1911U?

A: This designation indicates that Panasonic Electronic Components does not recommend the ERJ-14NF1911U for incorporation into new product designs. The part remains available for replacement and support of existing applications. For new designs, the RC3225F1911CS (Active status) is the preferred selection.

Q: Are there dimensional differences between these components?

A: Minor dimensional variations exist within acceptable tolerances. The RC3225F1911CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with maximum seated height of 0.026" (0.66mm). The ERJ-14NF1911U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with maximum seated height of 0.028" (0.70mm). These differences are functionally equivalent for standard PCB assembly processes and do not require design modifications.

Q: What packaging formats are available for these components?

A: The RC3225F1911CS is supplied in standard packaging format. The ERJ-14NF1911U is available in Tape & Reel (TR) format, supporting automated assembly processes. Both formats are compatible with standard pick-and-place equipment used in electronics manufacturing.

Q: Do both components meet automotive qualification standards?

A: The RC3225F1911CS meets general industrial compliance standards (ROHS3, REACH Unaffected). The ERJ-14NF1911U includes AEC-Q200 automotive qualification, providing additional reliability assurance for automotive applications. Both components are suitable for automotive use; the ERJ-14NF1911U provides documented automotive-grade reliability.

Q: What is the moisture sensitivity level for these components?

A: Both the RC3225F1911CS and ERJ-14NF1911U are rated at Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions. These components do not require special moisture control during storage, handling, or assembly.