RC5025F3012CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F3012CS is a 30.1 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated for 0.667W (2/3W) power dissipation in a 2010 (5025 Metric) surface mount package. This component is classified as Active product status and features moisture-resistant construction suitable for general industrial applications.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit higher power ratings or enhanced automotive qualification. The substitute parts listed maintain electrical equivalence through identical resistance value, tolerance, temperature coefficient, and package dimensions while offering alternative manufacturer options and enhanced feature sets.

Substiute Parts

RC5025F3012CS

Samsung Electro-MechanicsIn Stock: 1195RC5025F3012CS Datasheet

Current PartRFQ

ERJ-12SF3012U

Panasonic Electronic ComponentsIn Stock: 21782ERJ-12SF3012U Datasheet

SimilarRFQ

RMCF2010FT30K1

Stackpole Electronics IncIn Stock: 765RMCF2010FT30K1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F3012CS is determined by strict adherence to the following parameters:

Mandatory Matching Parameters:

• Resistance value: 30.1 kOhms
• Tolerance: ±1%
• Package / Case: 2010 (5025 Metric)
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Composition: Thick Film
• RoHS Status: ROHS3 Compliant

Acceptable Variation Parameters:

• Power Rating: Equal or higher than 0.667W
• Moisture Sensitivity Level: MSL 1 (Unlimited) maintained
• Packaging format: Original or Tape & Reel acceptable

The two qualified substitute parts (ERJ-12SF3012U and RMCF2010FT30K1) meet all mandatory parameters while offering enhanced power ratings of 0.75W (3/4W) and automotive AEC-Q200 qualification, providing design flexibility for applications requiring higher thermal margins or automotive-grade reliability.

Parameter Comparison

Engineering Selection Recommendations

RC5025F3012CS (Samsung Electro-Mechanics) - Primary Selection

Use this part for new designs and applications where the 0.667W power rating is sufficient. Active product status ensures long-term availability and supply chain stability. Moisture-resistant construction provides environmental protection for general industrial applications. ROHS3 compliance and unlimited MSL rating support standard manufacturing and storage conditions.

RMCF2010FT30K1 (Stackpole Electronics Inc) - Preferred Substitute

Select this part when supply of the primary component is constrained or when design margins require enhanced thermal capability. Active product status guarantees continued availability. The 0.75W power rating provides 12.4% additional thermal headroom compared to the primary part. Automotive AEC-Q200 qualification indicates enhanced reliability testing and process controls, suitable for applications requiring higher reliability standards. Identical package dimensions and electrical parameters ensure direct PCB compatibility without layout modifications.

ERJ-12SF3012U (Panasonic Electronic Components) - Alternative Substitute

This part is electrically and mechanically equivalent to RMCF2010FT30K1 but carries "Not For New Designs" status. Use only for legacy system maintenance, repair, or when existing inventory is available. The 0.75W power rating and automotive AEC-Q200 qualification match the Stackpole alternative. Tape & Reel packaging is standard for production environments.

Selection Logic:

• For new designs: RC5025F3012CS or RMCF2010FT30K1
• For existing designs requiring substitution: RMCF2010FT30K1 (Active status)
• For legacy system support only: ERJ-12SF3012U

Frequently Asked Questions (FAQ)

Q: Can ERJ-12SF3012U be used as a direct replacement for RC5025F3012CS?

A: Yes, ERJ-12SF3012U is electrically and mechanically compatible. Both parts share identical resistance (30.1 kOhms), tolerance (±1%), package (2010), temperature coefficient (±100ppm/°C), and operating range (-55°C ~ 155°C). The ERJ-12SF3012U offers higher power rating (0.75W vs 0.667W) and automotive qualification. However, its "Not For New Designs" status restricts use to existing designs or maintenance applications.

Q: Can RMCF2010FT30K1 be used as a direct replacement for RC5025F3012CS?

A: Yes, RMCF2010FT30K1 is a direct substitute. All electrical parameters match exactly, and the 2010 package dimensions are identical. The higher power rating (0.75W) and Active product status make this the preferred substitute for new designs or when primary component supply is unavailable.

Q: What is the difference between the 0.667W and 0.75W power ratings?

A: Both ratings represent continuous power dissipation capability at specified ambient temperature. The 0.75W rating provides 12.4% additional thermal margin. In applications operating near the 0.667W limit, the higher-rated substitute reduces junction temperature and extends component life. For applications well below 0.667W dissipation, both ratings are functionally equivalent.

Q: Are there height differences between these parts?

A: Yes. RC5025F3012CS has maximum seated height of 0.026" (0.66mm), while both substitutes (ERJ-12SF3012U and RMCF2010FT30K1) have maximum seated height of 0.028" (0.70mm). This 0.002" (0.04mm) difference is negligible for standard PCB assembly but should be verified if clearance is critical in high-density layouts or under low-profile shielding.

Q: Do all three parts meet RoHS and REACH requirements?

A: Yes. All three parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards for electronic components in EU and global markets.

Q: What does "Not For New Designs" mean for ERJ-12SF3012U?

A: This designation indicates the manufacturer has discontinued active development and recommends against using this part in new product designs. It remains available for existing designs and maintenance but may face future supply discontinuation. For new designs, use RC5025F3012CS or RMCF2010FT30K1 instead.

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

A: ERJ-12SF3012U and RMCF2010FT30K1 carry automotive AEC-Q200 qualification, suitable for automotive-grade applications. RC5025F3012CS lacks this certification. If automotive qualification is required, use RMCF2010FT30K1 (Active status) or ERJ-12SF3012U (legacy support only).

Q: What is the MSL rating and why does it matter?

A: All three parts have MSL 1 (Unlimited) rating, meaning they are not moisture-sensitive and require no special storage or handling precautions. Standard warehouse conditions are acceptable without desiccant packaging or humidity control.