RC3225F2743CS Equivalent & Substitute Parts

Part Overview

The RC3225F2743CS is a 274 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 with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status and is ROHS3 compliant with MSL 1 rating.

Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit alternative manufacturers meeting equivalent electrical and mechanical specifications. The RC3225F2743CS has documented substitute availability through Panasonic Electronic Components.

Substiute Parts

RC3225F2743CS

Samsung Electro-MechanicsIn Stock: 1067RC3225F2743CS Datasheet

Current PartRFQ

ERJ-14NF2743U

Panasonic Electronic ComponentsIn Stock: 9640ERJ-14NF2743U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F2743CS is determined by strict alignment of core electrical and mechanical parameters. The following criteria establish valid substitute relationships:

Primary Substitution Criteria:

• Resistance value: 274 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 (exact match required)
• Termination count: 2 (exact match required)
• RoHS3 Compliance: Required
• MSL Rating: 1 (Unlimited) (exact match required)

Secondary Consideration:

• Power rating may exceed the original specification (0.333W minimum required)

The ERJ-14NF2743U from Panasonic Electronic Components qualifies as a direct substitute based on these parameters. While the power rating is elevated to 0.5W (1/2W), this represents a higher capability that does not compromise circuit performance in applications designed for the 0.333W specification.

Parameter Comparison

Engineering Selection Recommendations

RC3225F2743CS (Samsung Electro-Mechanics) - Primary Selection

The RC3225F2743CS maintains Active product status and represents the original specified component. Selection of this part is appropriate when Samsung supply channels are available and lead times are acceptable. The part carries full ROHS3 compliance and MSL 1 rating suitable for standard manufacturing environments.

ERJ-14NF2743U (Panasonic Electronic Components) - Substitute Selection

The ERJ-14NF2743U qualifies as a direct electrical and mechanical substitute. This part carries ROHS3 compliance and MSL 1 rating. The elevated power rating (0.5W versus 0.333W) provides additional thermal margin without affecting circuit operation in applications designed for the lower power specification.

The ERJ-14NF2743U carries "Not For New Designs" product status from Panasonic. This designation indicates the part remains available for existing production and support but is not recommended for new design initiation. Selection of this substitute is appropriate for ongoing production support, field replacements, or when supply of the primary part is constrained.

The ERJ-14NF2743U includes automotive AEC-Q200 qualification, which exceeds the compliance requirements of the primary part and may provide additional reliability assurance in demanding applications.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF2743U replace the RC3225F2743CS in existing designs?

A: Yes. The ERJ-14NF2743U meets all critical electrical parameters (resistance value, tolerance, temperature coefficient, operating temperature range) and mechanical parameters (1210 package, physical dimensions, termination count). The higher power rating does not create compatibility issues in circuits designed for the 0.333W specification.

Q: What is the significance of the "Not For New Designs" status on the ERJ-14NF2743U?

A: This designation indicates Panasonic does not recommend this part for new product development. However, the part remains available for production support and field replacement of existing designs. Use of this substitute is appropriate for ongoing manufacturing of established products or emergency component replacement.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist. The ERJ-14NF2743U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) compared to the RC3225F2743CS at 0.126" L x 0.100" W (3.20mm x 2.55mm). The height difference is 0.028" (0.70mm) versus 0.026" (0.66mm). These variations remain within the 1210 package specification and do not affect PCB layout or assembly compatibility.

Q: Do both parts meet the same compliance requirements?

A: Both parts are ROHS3 compliant with MSL 1 (Unlimited) rating. The ERJ-14NF2743U additionally carries AEC-Q200 automotive qualification, which exceeds the compliance profile of the primary part.

Q: What packaging formats are available for these parts?

A: The RC3225F2743CS is available in standard packaging. The ERJ-14NF2743U is supplied in Tape & Reel (TR) format, which is standard for high-volume production environments.

Q: Can the substitute part be used in temperature-critical applications?

A: Yes. Both parts operate across the identical temperature range of -55°C to 155°C with matching temperature coefficient of ±100ppm/°C, ensuring equivalent performance in temperature-sensitive circuits.