RC3225F1910CS Equivalent & Substitute Parts

Part Overview

The RC3225F1910CS is a 191 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package format with a power rating of 0.333W (1/3W). This component is currently in active production status and features moisture-resistant construction suitable for general industrial and commercial applications.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit the use of alternative manufacturers' components that meet or exceed the electrical and mechanical specifications of the original part.

Substiute Parts

RC3225F1910CS

Samsung Electro-MechanicsIn Stock: 1203RC3225F1910CS Datasheet

Current PartRFQ

ERJ-14NF1910U

Panasonic Electronic ComponentsIn Stock: 25411ERJ-14NF1910U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC3225F1910CS is permissible when the replacement component maintains the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 191 Ohms
• Tolerance: ±1%
• Package format: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Number of Terminations: 2

Allowable Variations:

• Power rating may be equal to or greater than 0.333W
• Moisture Sensitivity Level: 1 (Unlimited) is acceptable
• RoHS3 compliance is required
• Physical dimensions may vary within standard 1210 package tolerances

The ERJ-14NF1910U from Panasonic Electronic Components qualifies as a substitute part. While it carries a higher power rating of 0.5W (1/2W) compared to the 0.333W specification of the RC3225F1910CS, this represents an upgrade in thermal capability and does not compromise circuit performance in applications designed for the lower power rating.

Parameter Comparison

Engineering Selection Recommendations

RC3225F1910CS (Samsung Electro-Mechanics): Select this component for new designs and applications requiring active production status. The part is currently in active production with substantial inventory availability (1097 Pcs in stock). This part is suitable for general industrial and commercial applications without automotive qualification requirements.

ERJ-14NF1910U (Panasonic Electronic Components): This substitute part carries a "Not For New Designs" status and should be used only for replacement, repair, or legacy system maintenance. The ERJ-14NF1910U includes AEC-Q200 automotive qualification, making it suitable for automotive applications where the RC3225F1910CS may not meet qualification requirements. The higher power rating (0.5W versus 0.333W) provides additional thermal margin in existing circuit designs. Inventory availability is significantly higher (25386 Pcs in stock).

Both components satisfy ROHS3 compliance and REACH unaffected status requirements for regulated markets.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF1910U replace the RC3225F1910CS in existing designs?

A: Yes. The ERJ-14NF1910U maintains identical resistance (191 Ohms), tolerance (±1%), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and package format (1210). The higher power rating (0.5W versus 0.333W) represents a thermal upgrade and does not create compatibility issues in circuits designed for the lower power specification.

Q: What is the significance of the "Not For New Designs" status on the ERJ-14NF1910U?

A: This designation indicates that Panasonic has classified this part as suitable for replacement and maintenance applications only. New product designs should prioritize the RC3225F1910CS or other components with active production status. However, the ERJ-14NF1910U remains fully functional and compliant for use in existing systems.

Q: Are there dimensional differences between these two parts?

A: Both components use the 1210 (3225 Metric) package format. Minor dimensional variations exist within standard package tolerances: the RC3225F1910CS measures 0.126" L x 0.100" W with a maximum seated height of 0.026", while the ERJ-14NF1910U measures 0.126" L x 0.098" W with a maximum seated height of 0.028". These variations fall within acceptable PCB layout and assembly tolerances for 1210 package components.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RC3225F1910CS and ERJ-14NF1910U are ROHS3 compliant, REACH unaffected, and carry Moisture Sensitivity Level 1 (Unlimited). The ERJ-14NF1910U additionally carries AEC-Q200 automotive qualification, which is not specified for the RC3225F1910CS.

Q: What is the difference between the RC3225F1910CS and ERJ-14NF1910U in terms of power dissipation capability?

A: The RC3225F1910CS is rated for 0.333W (1/3W) continuous power dissipation, while the ERJ-14NF1910U is rated for 0.5W (1/2W). In applications where the circuit dissipates power within the 0.333W specification, either component performs identically. The ERJ-14NF1910U provides additional thermal headroom for applications approaching the upper power limit.

Q: Can the RC3225F1910CS be used in automotive applications?

A: The RC3225F1910CS does not carry AEC-Q200 automotive qualification. For automotive applications requiring qualified components, the ERJ-14NF1910U with AEC-Q200 certification is the appropriate selection.