RC3225F1870CS Equivalent & Substitute Parts

Part Overview

The RC3225F1870CS is a 187 Ohm ±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 with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit alternative specifications within the same functional parameters. The RC3225F1870CS maintains compatibility with substitute parts that share identical resistance value, tolerance, package dimensions, and operating temperature range.

Substiute Parts

RC3225F1870CS

Samsung Electro-MechanicsIn Stock: 785RC3225F1870CS Datasheet

Current PartRFQ

ERJ-14NF1870U

Panasonic Electronic ComponentsIn Stock: 10726ERJ-14NF1870U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F1870CS is determined by strict alignment with the following core parameters:

Critical Matching Parameters:

• Resistance value: 187 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Package: 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: Substitute parts may have equal or higher power ratings (0.333W or greater)
• Packaging Format: Original packaging (bulk) may differ from substitute packaging (Tape & Reel)
• Product Status: Active or Not For New Designs status does not prevent substitution
• Certifications: Additional certifications (such as AEC-Q200) do not prevent substitution

The ERJ-14NF1870U from Panasonic Electronic Components qualifies as a direct substitute based on matching all critical parameters while offering a higher power rating (0.5W vs. 0.333W) and automotive-grade certification.

Parameter Comparison

Engineering Selection Recommendations

RC3225F1870CS (Primary Component): The RC3225F1870CS maintains Active product status, indicating continued manufacturer support and availability. This component is suitable for new designs and applications requiring long-term supply continuity. Samsung Electro-Mechanics classification as Active provides assurance of ongoing production and technical support.

ERJ-14NF1870U (Substitute Component): The ERJ-14NF1870U is classified as Not For New Designs, indicating that Panasonic Electronic Components has discontinued active promotion of this part for new applications. However, this component remains functionally equivalent and suitable for replacement in existing designs or when supply of the primary component is unavailable. The ERJ-14NF1870U includes AEC-Q200 automotive qualification, providing additional reliability assurance for applications requiring automotive-grade components.

Both components carry ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), confirming compatibility with standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF1870U replace RC3225F1870CS in existing designs?

A: Yes. The ERJ-14NF1870U meets all critical electrical and mechanical parameters: 187 Ohm resistance, ±1% tolerance, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, and 1210 package format. The higher power rating (0.5W vs. 0.333W) provides additional thermal margin without affecting circuit performance.

Q: What is the significance of the "Not For New Designs" status on ERJ-14NF1870U?

A: This designation indicates that Panasonic has transitioned this part to end-of-life status and does not recommend it for new product development. However, it remains available for replacement and repair applications. For new designs, RC3225F1870CS (Active status) is the preferred selection.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist. RC3225F1870CS measures 0.126" L x 0.100" W with 0.026" maximum seated height. ERJ-14NF1870U measures 0.126" L x 0.098" W with 0.028" maximum seated height. These differences fall within standard 1210 package tolerances and do not affect PCB layout compatibility.

Q: Do packaging format differences affect substitution?

A: No. RC3225F1870CS is supplied in bulk packaging, while ERJ-14NF1870U is supplied in Tape & Reel format. Both formats contain identical components; packaging format affects only handling and assembly processes, not electrical or mechanical performance.

Q: Is AEC-Q200 certification required for substitution?

A: No. AEC-Q200 automotive qualification on ERJ-14NF1870U is an additional certification that does not prevent substitution. Applications not requiring automotive qualification can use either component. Applications requiring automotive-grade components benefit from ERJ-14NF1870U's AEC-Q200 rating.

Q: Are both components RoHS3 compliant?

A: Yes. Both RC3225F1870CS and ERJ-14NF1870U carry ROHS3 compliance certification, confirming compliance with restricted substance regulations for both EU and global markets.