RC3225F4223CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F4223CS is a 422 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 carries ROHS3 compliance with Moisture Sensitivity Level 1 (unlimited shelf life).

Substitute parts become necessary when the primary component experiences supply constraints, inventory limitations, or when design requirements permit alternative manufacturers meeting equivalent electrical and mechanical specifications. The RC3225F4223CS has been identified with one primary substitute option that maintains critical parameter compatibility.

Substiute Parts

RC3225F4223CS

Samsung Electro-MechanicsIn Stock: 952RC3225F4223CS Datasheet

Current PartRFQ

ERJ-14NF4223U

Panasonic Electronic ComponentsIn Stock: 14506ERJ-14NF4223U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F4223CS is determined by strict adherence to the following parameters:

Critical Match Requirements:

• Resistance value: 422 kOhms (exact)
• 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 (substitute must cover this range)

Allowable Variation:

• Power rating: Substitute must be equal to or greater than 0.333W
• Physical dimensions: Minor variations within package specification tolerance are acceptable
• Moisture Sensitivity Level: MSL 1 is standard; substitutes at MSL 1 are directly compatible

The identified substitute ERJ-14NF4223U meets all critical parameters with an increased power rating of 0.5W (1/2W), providing enhanced thermal margin while maintaining identical electrical specifications for resistance, tolerance, and temperature characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Component (RC3225F4223CS): The RC3225F4223CS maintains Active product status and carries ROHS3 compliance, making it the preferred choice for new designs and applications requiring RoHS certification. With 896 pieces in stock, this component is suitable for immediate deployment in production environments where regulatory compliance is mandatory.

Substitute Component (ERJ-14NF4223U): The ERJ-14NF4223U is designated "Not For New Designs" and carries RoHS non-compliant status. This component is electrically and mechanically equivalent to the primary part with the exception of enhanced power rating (0.5W versus 0.333W). The substitute is suitable for:

• Replacement in existing designs currently using this component
• Applications where RoHS compliance is not required
• Situations where supply of the primary component is unavailable and design revision is not feasible

The higher power rating of the ERJ-14NF4223U provides additional thermal margin and may improve reliability in applications operating near the thermal limits of the original specification.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF4223U be used as a direct replacement for RC3225F4223CS in new product designs?

A: No. The ERJ-14NF4223U carries "Not For New Designs" status and is RoHS non-compliant. New designs should specify the RC3225F4223CS or identify alternative ROHS3-compliant 422 kOhm 1% 1210 resistors from the substitute list provided with the primary part.

Q: What is the significance of the power rating difference between the two parts?

A: The RC3225F4223CS is rated at 0.333W while the ERJ-14NF4223U is rated at 0.5W. Both ratings are sufficient for applications designed around the 0.333W specification. The higher rating on the substitute provides additional thermal headroom and does not create compatibility issues.

Q: Are the physical dimensions identical between RC3225F4223CS and ERJ-14NF4223U?

A: Both components use the 1210 (3225 Metric) package format. Minor dimensional variations exist within package tolerance: RC3225F4223CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with 0.026" max height, while ERJ-14NF4223U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with 0.028" max height. These variations fall within standard 1210 package specifications and do not affect PCB layout compatibility.

Q: What does "Not For New Designs" mean for the ERJ-14NF4223U?

A: This designation indicates that Panasonic is not recommending this part for incorporation into newly developed products. The part remains available for replacement and repair of existing equipment. New designs should source alternative components with Active status.

Q: Is the Moisture Sensitivity Level the same for both parts?

A: Yes. Both RC3225F4223CS and ERJ-14NF4223U carry MSL 1 (Unlimited) rating, indicating unlimited shelf life under normal storage conditions without special moisture control requirements.

Q: Can I use ERJ-14NF4223U in applications requiring ROHS3 compliance?

A: No. The ERJ-14NF4223U is RoHS non-compliant. Applications with RoHS certification requirements must use the RC3225F4223CS or identify alternative ROHS3-compliant substitutes.