RC3225F2493CS Equivalent & Substitute Parts

Part Overview

The RC3225F2493CS is a 249 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics. This 1210 (3225 Metric) package 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 unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, temperature coefficient) and mechanical compatibility (1210 package footprint, 2-termination configuration). Substitute components may offer enhanced power ratings or automotive-grade certifications while maintaining core electrical parameters.

Substiute Parts

RC3225F2493CS

Samsung Electro-MechanicsIn Stock: 1237RC3225F2493CS Datasheet

Current PartRFQ

CRCW1210249KFKEA

Vishay DaleIn Stock: 12254CRCW1210249KFKEA Datasheet

SimilarRFQ

ERJ-14NF2493U

Panasonic Electronic ComponentsIn Stock: 1866ERJ-14NF2493U Datasheet

SimilarRFQ

RMCF1210FT249K

Stackpole Electronics IncIn Stock: 4554RMCF1210FT249K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F2493CS is determined by the following core parameters:

Mandatory Matching Parameters:

• Resistance value: 249 kOhms
• 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
• Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameters (Allowed Differences):

• Power Rating: Substitute parts may have equal or higher power ratings (0.5W/1/2W acceptable for 0.333W/1/3W applications)
• Features: Substitute parts may include additional certifications (Automotive AEC-Q200)
• Packaging format: Tape & Reel (TR) acceptable for component sourcing
• Product Status: Active or Not For New Designs both acceptable

All three identified substitute parts meet the mandatory matching criteria while offering enhanced power ratings and automotive-grade certifications.

Parameter Comparison

Engineering Selection Recommendations

CRCW1210249KFKEA (Vishay Dale) is suitable for direct substitution. This part maintains Active product status, matches all mandatory electrical and mechanical parameters, and provides enhanced 0.5W power rating. Automotive AEC-Q200 certification is included. Dimensions are within acceptable tolerance for 1210 package footprint compatibility.

RMCF1210FT249K (Stackpole Electronics Inc) is suitable for direct substitution. This part maintains Active product status, matches all mandatory electrical and mechanical parameters, and provides enhanced 0.5W power rating. Automotive AEC-Q200 certification is included. Dimensions are within acceptable tolerance for 1210 package footprint compatibility.

ERJ-14NF2493U (Panasonic Electronic Components) is functionally equivalent but carries Not For New Designs product status. This part matches all mandatory electrical and mechanical parameters and provides enhanced 0.5W power rating with Automotive AEC-Q200 certification. Use is restricted to legacy design support or replacement applications only.

Frequently Asked Questions (FAQ)

Q: Can CRCW1210249KFKEA replace RC3225F2493CS in existing designs?

A: Yes. Both parts share identical resistance (249 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and 1210 package footprint. The CRCW1210249KFKEA provides higher power rating (0.5W versus 0.333W), which is acceptable for applications designed for the lower-rated component. Dimensional differences are within 1210 package specifications.

Q: What is the difference between the main part and substitute parts regarding power rating?

A: The RC3225F2493CS is rated for 0.333W (1/3W) power dissipation. All three substitute parts are rated for 0.5W (1/2W). Higher power ratings provide additional thermal margin and do not create compatibility issues in circuits designed for lower-rated components. The electrical characteristics (resistance, tolerance, temperature coefficient) remain identical.

Q: Are the substitute parts suitable for automotive applications?

A: CRCW1210249KFKEA and RMCF1210FT249K include Automotive AEC-Q200 certification. ERJ-14NF2493U also includes this certification but carries Not For New Designs status. The main part RC3225F2493CS does not list automotive certification. Automotive-grade substitutes are acceptable for general-purpose applications.

Q: What is the significance of the 1210 package designation?

A: The 1210 (3225 Metric) package is a standardized surface-mount resistor footprint measuring 3.20mm length by 2.50-2.55mm width. All listed parts use this identical package, ensuring PCB footprint compatibility. Slight dimensional variations (height and width) within the 1210 specification do not affect placement or soldering.

Q: Why is ERJ-14NF2493U marked as Not For New Designs?

A: Not For New Designs status indicates the manufacturer has discontinued active development and recommends alternative parts for new circuit designs. ERJ-14NF2493U remains functionally equivalent and is available in inventory for legacy system support or replacement applications. For new designs, CRCW1210249KFKEA or RMCF1210FT249K are preferred.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. RC3225F2493CS and all three substitute parts (CRCW1210249KFKEA, ERJ-14NF2493U, RMCF1210FT249K) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). All parts are REACH Unaffected and classified under ECCN EAR99.