RC5025F4871CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F4871CS is a 4.87 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.667W (2/3W) in a 2010 (5025 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 higher power ratings or alternative certifications. The ERJ-12SF4871U from Panasonic Electronic Components serves as a qualified substitute, though it carries a "Not For New Designs" status and offers increased power handling capability.

Substiute Parts

RC5025F4871CS

Samsung Electro-MechanicsIn Stock: 807RC5025F4871CS Datasheet

Current PartRFQ

ERJ-12SF4871U

Panasonic Electronic ComponentsIn Stock: 12394ERJ-12SF4871U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F4871CS is determined by strict adherence to the following parameters:

Critical Parameters (Must Match):

• Resistance value: 4.87 kOhms
• Tolerance: ±1%
• Package designation: 2010 (5025 Metric)
• Composition: Thick Film
• Physical dimensions: 0.197" L x 0.098" W (5.00mm x 2.50mm)

Allowable Variation Parameters:

• Power rating: Substitute must equal or exceed 0.667W
• Temperature coefficient: ±100ppm/°C (standard for this category)
• Operating temperature range: Must encompass -55°C ~ 155°C minimum
• Moisture sensitivity: MSL 1 acceptable
• RoHS compliance: ROHS3 required

The ERJ-12SF4871U qualifies as a substitute because it maintains identical resistance, tolerance, package type, and composition while providing increased power handling (0.75W vs. 0.667W). Both components share identical temperature coefficients, operating ranges, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

For Active Product Designs: The RC5025F4871CS remains the primary selection for new designs due to its Active product status. This component is in full production with established supply chains and long-term availability assurance.

For Existing Designs or Supply Contingency: The ERJ-12SF4871U serves as a qualified substitute when RC5025F4871CS availability is constrained. The substitute's higher power rating (0.75W vs. 0.667W) provides additional thermal margin without affecting circuit performance. The marginal height increase (0.028" vs. 0.026") remains within typical PCB assembly tolerances for 2010 package components.

Product Status Consideration: The ERJ-12SF4871U carries "Not For New Designs" designation, indicating Panasonic has transitioned this part to mature/legacy status. This classification does not affect substitution validity for existing production runs or field replacements but should inform long-term supply planning.

Compliance Verification: Both components maintain identical RoHS3 compliance, REACH unaffected status, and EAR99 export classification. No regulatory barriers exist for substitution in either direction within the same application context.

Frequently Asked Questions (FAQ)

Q: Can ERJ-12SF4871U be used as a direct replacement for RC5025F4871CS on existing PCBs?

A: Yes. Both components share identical package dimensions (2010/5025 Metric), footprint, and electrical specifications (4.87 kOhms ±1%, ±100ppm/°C, -55°C ~ 155°C). The 0.002" (0.04mm) height difference is negligible for standard reflow assembly processes.

Q: What is the significance of the "Not For New Designs" status on the ERJ-12SF4871U?

A: This designation indicates Panasonic has classified the ERJ-12SF4871U as a mature product no longer recommended for new circuit designs. However, it remains fully functional and available for existing production, field replacements, and legacy system support. New designs should prioritize the RC5025F4871CS.

Q: Does the higher power rating of ERJ-12SF4871U (0.75W vs. 0.667W) affect circuit behavior?

A: No. Higher power rating indicates greater thermal capacity and lower operating temperature under identical load conditions. This provides additional safety margin without altering electrical performance, resistance value, or tolerance characteristics.

Q: Are there packaging format differences between these parts?

A: Yes. The RC5025F4871CS is supplied in bulk packaging, while the ERJ-12SF4871U is supplied in Tape & Reel (TR) format. This affects handling, storage, and automated assembly processes but does not impact component functionality or electrical characteristics.

Q: What is the moisture sensitivity implication of MSL 1 rating?

A: MSL 1 (Unlimited) indicates both components have unlimited shelf life and require no special moisture control during storage or handling. Standard industrial storage conditions are acceptable without desiccant packs or controlled humidity environments.

Q: Can these resistors be used interchangeably in automotive applications?

A: The ERJ-12SF4871U carries AEC-Q200 automotive qualification, while the RC5025F4871CS does not specify automotive certification. For automotive applications requiring AEC-Q200 compliance, the ERJ-12SF4871U is the appropriate selection. For non-automotive applications, both components are functionally equivalent.