RC3225F2553CS Equivalent & Substitute Parts

Part Overview

The RC3225F2553CS is a 255 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 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 moisture sensitivity rating.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category. The primary substitute listed is the ERJ-14NF2553U from Panasonic Electronic Components, which shares the same resistance value, tolerance, package format, and operating temperature range.

Substiute Parts

RC3225F2553CS

Samsung Electro-MechanicsIn Stock: 672RC3225F2553CS Datasheet

Current PartRFQ

ERJ-14NF2553U

Panasonic Electronic ComponentsIn Stock: 3572ERJ-14NF2553U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F2553CS is determined by strict alignment of the following parameters:

Mandatory Matching Parameters:

• Resistance Value: 255 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package / Case: 1210 (3225 Metric) (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)
• Composition: Thick Film (exact match required)

Allowable Variation Parameters:

• Power Rating: The substitute may have equal or higher power rating than the main part (0.333W minimum)
• Physical Dimensions: Minor variations within standard package tolerances are acceptable
• Moisture Sensitivity Level: Must be MSL 1 or equivalent
• RoHS / REACH Compliance: Must maintain ROHS3 compliance

The ERJ-14NF2553U meets all mandatory matching parameters and exceeds the power rating specification (0.5W vs. 0.333W), making it a valid electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

RC3225F2553CS (Main Part): The RC3225F2553CS maintains Active product status and is recommended for new design implementations. This part is suitable for applications requiring a 255 kOhms resistor with 1/3W power dissipation in the 1210 package format. The component is ROHS3 compliant and carries MSL 1 rating, indicating no moisture sensitivity restrictions during storage and handling.

ERJ-14NF2553U (Substitute): The ERJ-14NF2553U is electrically and mechanically compatible with the RC3225F2553CS for direct substitution in existing designs or applications where component availability is constrained. This part carries Panasonic's AEC-Q200 automotive qualification and provides higher power rating (0.5W vs. 0.333W), offering additional thermal margin in power-dissipation-sensitive applications. However, the ERJ-14NF2553U is designated as "Not For New Designs," indicating this part is in mature or declining production status. For new design implementations, the RC3225F2553CS is the preferred selection.

Both parts maintain identical electrical performance within the specified tolerance and operating temperature range. Physical dimensions are within standard package tolerances, ensuring PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF2553U replace the RC3225F2553CS in an existing circuit?

A: Yes. The ERJ-14NF2553U is electrically and mechanically compatible. Both parts share identical resistance value (255 kOhms), tolerance (±1%), package format (1210), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute part's higher power rating (0.5W vs. 0.333W) does not create compatibility issues and provides additional thermal headroom.

Q: What is the difference in physical dimensions between these parts?

A: The RC3225F2553CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with maximum seated height of 0.026" (0.66mm). The ERJ-14NF2553U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with maximum seated height of 0.028" (0.70mm). These variations fall within standard 1210 package tolerances and do not affect PCB footprint compatibility.

Q: Why is the ERJ-14NF2553U marked "Not For New Designs"?

A: This designation indicates the part is in mature production phase with potential for future discontinuation. For new circuit designs, the RC3225F2553CS is the recommended selection due to its Active product status and assured long-term availability.

Q: Are both parts RoHS compliant?

A: Yes. Both the RC3225F2553CS and ERJ-14NF2553U are ROHS3 compliant and carry MSL 1 moisture sensitivity rating, indicating no special storage or handling requirements.

Q: Can I use the ERJ-14NF2553U in applications requiring exactly 0.333W power rating?

A: Yes. The ERJ-14NF2553U is rated for 0.5W (1/2W) power dissipation, which exceeds the 0.333W (1/3W) requirement of the RC3225F2553CS. The substitute part will operate safely within the lower power specification.

Q: What is the temperature coefficient specification, and does it differ between parts?

A: Both parts specify ±100ppm/°C temperature coefficient, indicating identical resistance stability across the -55°C ~ 155°C operating range. This parameter is critical for precision applications and is matched between the main part and substitute.