RC5025F1821CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F1821CS is a 1.82 kOhms ±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 operates across the temperature range of -55°C to 155°C. The part is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and performance envelope.

Substiute Parts

RC5025F1821CS

Samsung Electro-MechanicsIn Stock: 1148RC5025F1821CS Datasheet

Current PartRFQ

RMCF2010FT1K82

Stackpole Electronics IncIn Stock: 29043RMCF2010FT1K82 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F1821CS is determined by strict alignment of the following parameters:

Mandatory Matching Parameters:

• Resistance value: 1.82 kOhms
• Tolerance: ±1%
• Package format: 2010 (5025 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: MSL 1

Allowable Variation:

• Power rating: Substitute parts may have equal or higher power dissipation capacity while maintaining identical package dimensions and electrical characteristics.

The RMCF2010FT1K82 from Stackpole Electronics Inc meets all mandatory parameters with an increased power rating of 0.75W (3/4W), making it a valid substitute where higher power headroom is acceptable within the same mechanical footprint.

Parameter Comparison

Engineering Selection Recommendations

RC5025F1821CS (Samsung Electro-Mechanics): Select this part when the original design specification explicitly requires the Samsung Electro-Mechanics RC series component or when the 0.667W power rating is the limiting factor in board layout thermal management.

RMCF2010FT1K82 (Stackpole Electronics Inc): This substitute is applicable in applications where the increased 0.75W power rating provides additional thermal margin without affecting circuit performance. The Stackpole RMCF series carries AEC-Q200 automotive qualification, making it suitable for automotive-grade applications. Both parts maintain identical electrical characteristics, package footprint, and compliance certifications. The marginal height difference (0.028" vs 0.026") is within standard PCB assembly tolerances for 2010 package components.

Frequently Asked Questions (FAQ)

Q: Can RMCF2010FT1K82 be used as a direct replacement for RC5025F1821CS?

A: Yes. Both components share identical resistance value (1.82 kOhms), tolerance (±1%), package format (2010/5025 Metric), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance status (ROHS3, MSL 1). The RMCF2010FT1K82 has a higher power rating (0.75W vs 0.667W), which is compatible with the original design.

Q: What is the significance of the power rating difference?

A: The RMCF2010FT1K82 is rated for 0.75W compared to the RC5025F1821CS at 0.667W. In applications where the circuit dissipates power below 0.667W, both parts perform identically. The higher rating on the Stackpole part provides additional thermal headroom and does not degrade performance in lower-power applications.

Q: Are there packaging differences between these parts?

A: Both parts use the 2010 (5025 Metric) package with identical length (0.197" / 5.00mm) and width (0.098" / 2.50mm). The seated height differs marginally: RC5025F1821CS at 0.026" (0.66mm) and RMCF2010FT1K82 at 0.028" (0.70mm). This 0.002" variance is within standard PCB assembly tolerances and does not affect board-level compatibility.

Q: What certifications apply to both parts?

A: Both the RC5025F1821CS and RMCF2010FT1K82 are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (unlimited moisture sensitivity). The RMCF2010FT1K82 additionally carries AEC-Q200 automotive qualification.

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

A: The RMCF2010FT1K82 is qualified to AEC-Q200 automotive standards. The RC5025F1821CS does not carry this designation. For automotive applications requiring AEC-Q200 compliance, the RMCF2010FT1K82 is the appropriate selection.

Q: What is the temperature coefficient specification and why does it matter?

A: Both parts have a temperature coefficient of ±100ppm/°C, meaning the resistance value changes by a maximum of 100 parts per million for each degree Celsius change in operating temperature. This specification ensures predictable resistance stability across the -55°C to 155°C operating range and is identical between both parts.