RC3225F3573CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F3573CS is a 357 kOhms ±1% 1/3W chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package. This thick film, moisture-resistant component operates across -55°C to 155°C and maintains ROHS3 compliance with MSL 1 rating. The part is currently in active production status with 782 units available in inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the 1210 package footprint.

Substiute Parts

RC3225F3573CS

Samsung Electro-MechanicsIn Stock: 872RC3225F3573CS Datasheet

Current PartRFQ

ERJ-14NF3573U

Panasonic Electronic ComponentsIn Stock: 1840ERJ-14NF3573U Datasheet

SimilarRFQ

ERJ-P14F3573U

Panasonic Electronic ComponentsIn Stock: 5669ERJ-P14F3573U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F3573CS is determined by the following criteria:

Mandatory Matching Parameters:

• Resistance value: 357 kOhms
• Tolerance: ±1%
• Package: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation:

• Power Rating: Substitute parts may have equal or higher power ratings (0.333W minimum)
• Physical dimensions: Minor variations within 1210 package specification tolerance
• Certifications: Additional certifications (such as AEC-Q200) do not disqualify substitution

The identified substitute parts ERJ-14NF3573U and ERJ-P14F3573U both meet all mandatory parameters. Both are manufactured by Panasonic Electronic Components in the 1210 package with 357 kOhms ±1% resistance and ±100ppm/°C temperature coefficient. Both operate across -55°C to 155°C and maintain ROHS3 compliance with MSL 1 rating. The primary difference is power rating: both substitutes are rated at 0.5W (1/2W), which exceeds the RC3225F3573CS specification of 0.333W (1/3W).

Parameter Comparison

Engineering Selection Recommendations

RC3225F3573CS (Primary Selection): Select this part when Samsung Electro-Mechanics sourcing is required or when active product status is mandatory. The part is currently in production with adequate inventory. Use in applications where the 1/3W power rating is sufficient and moisture-resistant thick film composition is specified.

ERJ-P14F3573U (Preferred Substitute): This Panasonic part is the primary substitute option. It maintains active product status, matching the RC3225F3573CS lifecycle position. The higher 0.5W power rating provides additional thermal margin in power-dissipation-sensitive applications. Pulse withstanding capability and AEC-Q200 automotive qualification are included. Select this part when Panasonic sourcing is acceptable and higher power rating is beneficial or required.

ERJ-14NF3573U (Secondary Substitute): This Panasonic part is electrically and mechanically equivalent but carries "Not For New Designs" status. The 0.5W power rating and AEC-Q200 automotive qualification are present. Select only when existing design documentation specifies this part number or when legacy system compatibility is required. Avoid for new design implementations.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF3573U or ERJ-P14F3573U be used as direct replacements for RC3225F3573CS?

A: Yes, both Panasonic parts are direct substitutes. All mandatory electrical parameters match: 357 kOhms ±1% resistance, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, and ROHS3 compliance. Both fit the 1210 (3225 Metric) package. The higher 0.5W power rating in both substitutes does not prevent substitution; it provides additional thermal capability.

Q: What is the difference between ERJ-14NF3573U and ERJ-P14F3573U?

A: Both parts share identical electrical specifications and package dimensions. The primary differences are: (1) ERJ-P14F3573U is active production status while ERJ-14NF3573U is not for new designs; (2) ERJ-P14F3573U includes pulse withstanding capability; (3) ERJ-P14F3573U has significantly higher inventory (5657 vs 1826 units). For new designs, ERJ-P14F3573U is the preferred choice.

Q: Does the 0.5W rating of the Panasonic substitutes affect circuit performance compared to the 0.333W Samsung part?

A: No. Power rating indicates maximum dissipation capability, not operating power. If the circuit dissipates 0.2W through the resistor, both 0.333W and 0.5W rated parts operate identically. The higher rating in substitutes provides additional safety margin and thermal headroom without changing electrical behavior.

Q: Are the physical dimensions identical between RC3225F3573CS and the Panasonic substitutes?

A: All three parts conform to the 1210 (3225 Metric) package specification. Minor dimensional variations exist within tolerance: RC3225F3573CS is 0.126" L x 0.100" W with 0.026" max height; ERJ-14NF3573U and ERJ-P14F3573U are 0.126" L x 0.098" W with 0.028" max height. These variations are within standard 1210 package tolerance and do not affect PCB layout or assembly compatibility.

Q: Can these parts be used in automotive applications?

A: ERJ-14NF3573U and ERJ-P14F3573U carry AEC-Q200 automotive qualification. RC3225F3573CS does not list AEC-Q200 certification. If automotive qualification is a design requirement, use ERJ-P14F3573U (active status) or ERJ-14NF3573U (legacy status). If automotive qualification is not required, all three parts are suitable for general industrial and commercial applications.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the lowest moisture sensitivity level. These parts can be stored indefinitely without moisture baking requirements and have unlimited floor life after opening. All three parts share this rating, confirming equivalent moisture handling characteristics.