RC3225F2870CS Equivalent & Substitute Parts

Part Overview

The RC3225F2870CS is a 287 Ohm ±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 with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with 760 pieces currently in stock.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit higher power ratings or alternative certifications such as automotive qualification. The RC3225F2870CS can be substituted with equivalent resistors that maintain identical resistance value, tolerance, package dimensions, and operating temperature specifications.

Substiute Parts

RC3225F2870CS

Samsung Electro-MechanicsIn Stock: 778RC3225F2870CS Datasheet

Current PartRFQ

ERJ-14NF2870U

Panasonic Electronic ComponentsIn Stock: 8106ERJ-14NF2870U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC3225F2870CS is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 287 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Package format: 1210 (3225 Metric) (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)
• Composition: Thick Film (exact match required)
• Number of terminations: 2 (exact match required)

Allowable Variation Parameters:

• Power rating: May be equal to or greater than 0.333W
• Moisture Sensitivity Level: Must be 1 (Unlimited) or equivalent
• RoHS compliance: Must maintain ROHS3 Compliant status
• Product certifications: May include additional qualifications (such as AEC-Q200 automotive rating)

The ERJ-14NF2870U from Panasonic Electronic Components qualifies as a direct substitute because it maintains all critical matching parameters while offering an increased power rating of 0.5W (1/2W) and includes AEC-Q200 automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

Primary Component (RC3225F2870CS): The RC3225F2870CS maintains Active product status and is recommended for new designs requiring standard industrial-grade thick film resistors. This component is suitable for general-purpose applications where automotive qualification is not required.

Substitute Component (ERJ-14NF2870U): The ERJ-14NF2870U is suitable for substitution in applications where the RC3225F2870CS is unavailable. This component carries AEC-Q200 automotive qualification, making it appropriate for automotive and high-reliability applications. However, the ERJ-14NF2870U carries a "Not For New Designs" status, indicating that Panasonic recommends against its use in new product development. The higher power rating of 0.5W provides additional thermal margin compared to the original 0.333W specification.

Compliance Considerations: Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with standard manufacturing and storage requirements. Both components are classified under ECCN EAR99 and HTSUS 8533.21.0030.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF2870U be used as a direct replacement for the RC3225F2870CS?

A: Yes, the ERJ-14NF2870U qualifies as a direct electrical and mechanical substitute. All critical parameters including resistance value (287 Ohms), tolerance (±1%), package format (1210), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C) are identical. The substitute component has a higher power rating (0.5W versus 0.333W), which does not prevent substitution.

Q: What is the significance of the "Not For New Designs" status on the ERJ-14NF2870U?

A: This status indicates that Panasonic recommends against using this component in new product development. However, it remains a valid substitute for existing designs or when supply of the primary component is constrained. The component continues to be manufactured and is available in inventory (8067 pieces).

Q: Are there dimensional differences between these components?

A: Minor dimensional variations exist. The RC3225F2870CS measures 0.126" L x 0.100" W (3.20mm x 2.55mm) with a maximum seated height of 0.026" (0.66mm). The ERJ-14NF2870U measures 0.126" L x 0.098" W (3.20mm x 2.50mm) with a maximum seated height of 0.028" (0.70mm). These differences are within standard PCB layout tolerances for 1210 package components and do not affect functional compatibility.

Q: What is the advantage of the higher power rating on the substitute component?

A: The ERJ-14NF2870U's 0.5W rating provides additional thermal headroom compared to the original 0.333W specification. In applications where the RC3225F2870CS operates near its power limit, the substitute component reduces thermal stress and extends component life. However, if the original design specifies 0.333W, the higher rating does not provide functional advantage.

Q: Are both components suitable for automotive applications?

A: The RC3225F2870CS is a standard industrial-grade component without automotive certification. The ERJ-14NF2870U carries AEC-Q200 automotive qualification, making it suitable for automotive applications. If automotive qualification is required, the ERJ-14NF2870U is the appropriate choice.

Q: What packaging formats are available for these components?

A: The RC3225F2870CS is supplied in standard packaging (specific format not detailed in provided parameters). The ERJ-14NF2870U is supplied in Tape & Reel (TR) format, which is standard for high-volume automated assembly operations.