RC3225F1373CS Equivalent & Substitute Parts

Part Overview

The RC3225F1373CS is a 137 kOhms ±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 and is ROHS3 compliant with MSL 1 moisture sensitivity rating.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same resistance value, tolerance, package footprint, and operating temperature range. The primary substitute identified is the ERJ-14NF1373U from Panasonic Electronic Components, which shares identical resistance, tolerance, package dimensions, and temperature operating range while offering higher power rating and automotive-grade qualification.

Substiute Parts

RC3225F1373CS

Samsung Electro-MechanicsIn Stock: 904RC3225F1373CS Datasheet

Current PartRFQ

ERJ-14NF1373U

Panasonic Electronic ComponentsIn Stock: 1438ERJ-14NF1373U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F1373CS is determined by strict alignment with the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 137 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package footprint: 1210 (3225 Metric) (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match or wider range acceptable)
• Composition: Thick Film (exact match required)
• Number of terminations: 2 (exact match required)

Flexible Parameters (substitution permitted with consideration):

• Power rating: Substitute may equal or exceed the 0.333W specification
• Physical dimensions: Minor variations within package class tolerance acceptable
• Compliance certifications: Substitute may include additional certifications (e.g., AEC-Q200, automotive qualification)
• Product status: Active or Not For New Designs both acceptable for equivalent substitution
• RoHS compliance: Substitute may differ in RoHS classification depending on application requirements

The ERJ-14NF1373U meets all critical matching parameters and exceeds power rating specification at 0.5W (1/2W), making it a valid electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

RC3225F1373CS Selection Criteria:

• Primary choice for new designs requiring ROHS3 compliance
• Suitable for applications with 0.333W power dissipation requirements
• Recommended when RoHS3 certification is mandatory
• Active product status ensures long-term availability and supply chain stability

ERJ-14NF1373U Selection Criteria:

• Electrical and mechanical equivalent with higher power rating (0.5W vs. 0.333W)
• Suitable for applications where additional thermal margin is beneficial
• AEC-Q200 automotive qualification available for automotive-grade applications
• Product status "Not For New Designs" indicates limited future availability; use only when RC3225F1373CS is unavailable
• RoHS non-compliance requires verification against application regulatory requirements before selection

Substitution Feasibility: The ERJ-14NF1373U is electrically and mechanically compatible with the RC3225F1373CS. Dimensional variations (width 0.100" vs. 0.098", height 0.026" vs. 0.028") remain within 1210 package class tolerances and do not affect PCB footprint compatibility. The higher power rating of the substitute provides additional design margin without introducing incompatibility.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF1373U replace RC3225F1373CS in existing designs?

A: Yes. The ERJ-14NF1373U is electrically and mechanically compatible. Resistance (137 kOhms), tolerance (±1%), package (1210), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C) are identical. The higher power rating (0.5W vs. 0.333W) does not create incompatibility. Verify RoHS compliance requirements for your application, as the substitute is RoHS non-compliant.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist within 1210 package class tolerance. RC3225F1373CS: 3.20mm L x 2.55mm W x 0.66mm H (max). ERJ-14NF1373U: 3.20mm L x 2.50mm W x 0.70mm H (max). These variations do not affect PCB footprint compatibility or assembly processes.

Q: What is the significance of the "Not For New Designs" status on the ERJ-14NF1373U?

A: This designation indicates Panasonic has discontinued active promotion and development of this part. While currently available in inventory (1343 Pcs), future availability is not guaranteed. For new designs, the RC3225F1373CS (Active status) is the preferred choice to ensure long-term supply chain continuity.

Q: Does the higher power rating of ERJ-14NF1373U affect circuit performance?

A: No. Power rating is a maximum specification. The substitute will operate identically to the main part in circuits designed for 0.333W dissipation. The higher 0.5W rating provides additional thermal margin and does not alter electrical behavior.

Q: Which part should I select for RoHS3-compliant applications?

A: Select RC3225F1373CS. This part carries ROHS3 Compliant certification. The ERJ-14NF1373U is RoHS non-compliant and unsuitable for applications with RoHS3 requirements.

Q: Is AEC-Q200 automotive qualification available on the main part?

A: No. RC3225F1373CS does not specify AEC-Q200 qualification. The ERJ-14NF1373U includes AEC-Q200 automotive-grade qualification, making it suitable for automotive applications requiring this certification.

Q: Can I use these parts interchangeably in high-temperature applications?

A: Yes. Both parts share identical operating temperature range (-55°C ~ 155°C) and temperature coefficient (±100ppm/°C). They are interchangeable for temperature performance.