RC5025F18R7CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F18R7CS is an 18.7 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2010 (5025 Metric) package format. This component is rated for 0.667W (2/3W) power dissipation and features moisture-resistant construction with an operating temperature range of -55°C to 155°C. The part maintains Active product status and is ROHS3 compliant with MSL 1 rating.

Equivalent and substitute parts are identified based on matching core electrical specifications: resistance value (18.7 Ohms), tolerance (±1%), package format (2010/5025 Metric), composition (thick film), and temperature coefficient (±100ppm/°C). Substitutes may vary in power rating and specific certifications while maintaining functional compatibility within the defined electrical and mechanical parameters.

Substiute Parts

RC5025F18R7CS

Samsung Electro-MechanicsIn Stock: 689RC5025F18R7CS Datasheet

Current PartRFQ

ERJ-12SF18R7U

Panasonic Electronic ComponentsIn Stock: 6019ERJ-12SF18R7U Datasheet

SimilarRFQ

RMCF2010FT18R7

Stackpole Electronics IncIn Stock: 2342RMCF2010FT18R7 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC5025F18R7CS are qualified based on the following criteria:

Mandatory Matching Parameters:

• Resistance value: 18.7 Ohms
• Tolerance: ±1%
• Package format: 2010 (5025 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• Termination count: 2

Allowable Variations:

• Power rating: Substitutes may have equal or higher power dissipation capacity (0.75W or greater acceptable for 0.667W rated applications)
• Packaging format: Tape & Reel acceptable as functional equivalent to standard packaging
• Certifications: Additional automotive or industrial certifications (AEC-Q200) do not preclude substitution

Identified Substitutes:

1. ERJ-12SF18R7U (Panasonic Electronic Components) – 0.75W rated, AEC-Q200 certified, Not For New Designs status
2. RMCF2010FT18R7 (Stackpole Electronics Inc) – 0.75W rated, AEC-Q200 certified, Active product status

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (Recommended for New Designs): RMCF2010FT18R7 from Stackpole Electronics Inc is the preferred substitute. This part maintains Active product status, ensuring long-term availability and manufacturing support. The 0.75W power rating provides margin above the 0.667W requirement of the main part. AEC-Q200 automotive certification and ROHS3 compliance align with the main part's regulatory requirements.

Secondary Selection (Legacy Applications): ERJ-12SF18R7U from Panasonic Electronic Components is functionally equivalent but carries Not For New Designs status. This part is suitable only for replacement or maintenance of existing assemblies where the original RC5025F18R7CS is no longer available. The 0.75W power rating and AEC-Q200 certification provide equivalent performance characteristics.

Compliance Considerations: Both substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical operating temperature ranges. Height variation (0.028" vs 0.026" maximum seated height) is within typical PCB assembly tolerances and does not affect functional compatibility in standard applications.

Frequently Asked Questions (FAQ)

Q: Can ERJ-12SF18R7U be used as a direct replacement for RC5025F18R7CS? A: Yes. Both parts share identical resistance (18.7 Ohms), tolerance (±1%), package format (2010/5025 Metric), and temperature coefficient (±100ppm/°C). The ERJ-12SF18R7U has a higher power rating (0.75W vs 0.667W), which is acceptable for applications designed for the lower-rated part. Note that ERJ-12SF18R7U carries Not For New Designs status.

Q: What is the difference between the two substitute parts? A: RMCF2010FT18R7 and ERJ-12SF18R7U are electrically and mechanically identical. The primary difference is product status: RMCF2010FT18R7 is Active, while ERJ-12SF18R7U is Not For New Designs. For new designs, RMCF2010FT18R7 is preferred due to long-term availability assurance.

Q: Does the height difference (0.026" vs 0.028") affect PCB assembly? A: No. The 0.002" (0.04mm) height difference is within standard PCB assembly tolerances and does not affect placement, soldering, or functional performance in typical applications.

Q: Are all substitute parts ROHS3 compliant? A: Yes. RC5025F18R7CS, ERJ-12SF18R7U, and RMCF2010FT18R7 are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Can I use a substitute part with higher power rating in a circuit designed for 0.667W? A: Yes. Using a higher-rated component (0.75W) in an application designed for 0.667W is acceptable and provides additional thermal margin. The electrical characteristics (resistance, tolerance, temperature coefficient) remain identical.

Q: What certifications do the substitute parts carry? A: Both ERJ-12SF18R7U and RMCF2010FT18R7 carry AEC-Q200 automotive certification in addition to ROHS3 compliance, exceeding the certification level of the main part.