RC3225F2740CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F2740CS is a 274 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.333W (1/3W) in a 1210 (3225 Metric) package. This component is classified as Active product status with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the same package footprint and performance envelope.

Substiute Parts

RC3225F2740CS

Samsung Electro-MechanicsIn Stock: 1063RC3225F2740CS Datasheet

Current PartRFQ

CRCW1210274RFKEA

Vishay DaleIn Stock: 13975CRCW1210274RFKEA Datasheet

SimilarRFQ

ERJ-14NF2740U

Panasonic Electronic ComponentsIn Stock: 17399ERJ-14NF2740U Datasheet

SimilarRFQ

RMCF1210FT274R

Stackpole Electronics IncIn Stock: 4257RMCF1210FT274R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F2740CS is determined by the following critical parameters:

Mandatory Matching Criteria:

• Resistance value: 274 Ohms
• Tolerance: ±1%
• Package / Case: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C to 155°C
• Number of Terminations: 2
• RoHS Status: ROHS3 Compliant

Allowable Variation:

• Power Rating: Substitute parts rated at 0.5W (1/2W) are acceptable as they exceed the 0.333W (1/3W) requirement of the main part, providing equal or superior thermal performance in the same package footprint.

The three identified substitute parts (CRCW1210274RFKEA, ERJ-14NF2740U, and RMCF1210FT274R) meet all mandatory criteria and feature enhanced power ratings, making them direct functional equivalents.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

CRCW1210274RFKEA (Vishay Dale) and RMCF1210FT274R (Stackpole Electronics Inc) are both classified as Active products with full production support. Both parts exceed the power rating requirement at 0.5W and carry AEC-Q200 automotive qualification. These parts are suitable for new designs and ongoing production applications.

Secondary Substitute (Legacy Status):

ERJ-14NF2740U (Panasonic Electronic Components) is classified as Not For New Designs. While electrically and mechanically equivalent with AEC-Q200 qualification, this part should be used only for replacement or maintenance of existing assemblies. New design implementations should prioritize CRCW1210274RFKEA or RMCF1210FT274R.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard PCB assembly and storage protocols. The enhanced power ratings of substitute parts provide thermal margin without requiring PCB layout modifications.

Frequently Asked Questions (FAQ)

Q: Can CRCW1210274RFKEA replace RC3225F2740CS in existing designs?

A: Yes. CRCW1210274RFKEA is electrically and mechanically equivalent with identical resistance, tolerance, temperature coefficient, and operating range. The higher power rating (0.5W vs 0.333W) provides additional thermal capacity without affecting circuit performance or PCB footprint.

Q: What is the significance of the 0.5W power rating on substitute parts compared to the 0.333W main part?

A: The substitute parts are rated for higher power dissipation in the same 1210 package. This represents improved thermal performance and does not create incompatibility. The circuit will operate identically; the substitute simply has greater thermal margin.

Q: Why is ERJ-14NF2740U marked as Not For New Designs?

A: This designation indicates the manufacturer has discontinued active development and production support for new applications. The part remains functionally equivalent and suitable for replacement or maintenance of existing assemblies, but new designs should utilize CRCW1210274RFKEA or RMCF1210FT274R for long-term supply assurance.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. CRCW1210274RFKEA, ERJ-14NF2740U, and RMCF1210FT274R all carry AEC-Q200 automotive qualification. The main part RC3225F2740CS does not specify this rating. Substitutes provide automotive-grade reliability for applications requiring this standard.

Q: Do substitute parts require different PCB footprints?

A: No. All substitute parts use the identical 1210 (3225 Metric) package with the same footprint dimensions and termination configuration. Direct PCB substitution is possible without layout modifications.

Q: What is the difference between Tape & Reel and other packaging formats?

A: Tape & Reel (TR) packaging is standard for automated SMD assembly processes. All substitute parts are supplied in Tape & Reel format, compatible with standard pick-and-place equipment and reflow soldering processes.

Q: Are there any environmental or compliance differences between the main part and substitutes?

A: All parts are ROHS3 compliant and REACH unaffected. Moisture Sensitivity Level is 1 (Unlimited) for all parts, indicating no special storage or handling requirements beyond standard PCB assembly protocols.