RC5025F6493CS Equivalent & Substitute Parts

Part Overview

The RC5025F6493CS is a 649 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 currently in active production status and features moisture-resistant construction suitable for general industrial applications.

Substitute parts are necessary when the primary component becomes unavailable, when design requirements shift toward automotive-grade specifications, or when inventory constraints require sourcing from alternative manufacturers while maintaining electrical and mechanical compatibility.

Substiute Parts

RC5025F6493CS

Samsung Electro-MechanicsIn Stock: 1080RC5025F6493CS Datasheet

Current PartRFQ

ERJ-12SF6493U

Panasonic Electronic ComponentsIn Stock: 5443ERJ-12SF6493U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F6493CS is determined by strict alignment with the following parameters:

Mandatory Matching Parameters:

• Resistance value: 649 kOhms
• Tolerance: ±1%
• Package designation: 2010 (5025 Metric)
• Number of terminations: 2
• Composition: Thick Film

Minimum Performance Requirements:

• Power rating must equal or exceed 0.667W
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C or broader

Acceptable Variations:

• Power rating may exceed the minimum (0.667W) without restriction
• Physical dimensions may vary within package specification tolerances
• Moisture sensitivity level remains at MSL 1 (Unlimited)
• RoHS and REACH compliance status may differ based on application requirements

The ERJ-12SF6493U qualifies as a direct substitute based on matching all mandatory parameters while exceeding the power rating specification (0.75W versus 0.667W required).

Parameter Comparison

Engineering Selection Recommendations

Primary Component (RC5025F6493CS): The RC5025F6493CS is the preferred selection for new designs. This component maintains active production status, carries ROHS3 compliance certification, and is suitable for applications requiring regulatory adherence to current environmental standards. The moisture-resistant thick film construction and unlimited moisture sensitivity rating provide reliability across diverse operating environments.

Substitute Component (ERJ-12SF6493U): The ERJ-12SF6493U serves as a functional equivalent when the primary component is unavailable. This Panasonic component meets all critical electrical parameters and exceeds the power rating requirement. However, the following considerations apply:

• Product status is "Not For New Designs," indicating this component is in mature or declining production phase
• RoHS non-compliance status requires verification against specific application regulatory requirements
• Automotive AEC-Q200 qualification provides enhanced reliability assurance for demanding environments
• Higher power rating (0.75W) offers additional thermal margin without circuit modification

Selection between these components depends on application regulatory requirements, supply chain availability, and whether automotive-grade specifications are necessary for the intended use case.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-12SF6493U directly replace the RC5025F6493CS in existing designs?

A: Yes, from an electrical and mechanical standpoint. The ERJ-12SF6493U matches all critical parameters: 649 kOhms resistance, ±1% tolerance, 2010 package, and identical operating temperature range. The higher power rating (0.75W versus 0.667W) presents no compatibility issues. However, RoHS compliance status differs; verify regulatory requirements for your application before implementation.

Q: What does "Not For New Designs" mean for the ERJ-12SF6493U?

A: This product status indicates the component is in mature production phase and may face eventual discontinuation. Panasonic does not recommend this part for new circuit designs. For new development, the RC5025F6493CS (Active status) is the appropriate selection.

Q: Are the physical dimensions identical between these parts?

A: Dimensions are functionally equivalent. Both components measure 0.197" L x 0.098" W (5.00mm x 2.50mm). Maximum seated height differs slightly: RC5025F6493CS at 0.026" (0.66mm) versus ERJ-12SF6493U at 0.028" (0.70mm). This 0.002" (0.04mm) variation falls within standard PCB assembly tolerances and does not affect placement or functionality.

Q: Why does the ERJ-12SF6493U have a higher power rating?

A: The 0.75W rating (versus 0.667W for the RC5025F6493CS) reflects Panasonic's design specifications for this component series. A higher power rating does not alter electrical behavior in the circuit; it simply indicates greater thermal capacity. The component will operate identically at the required power level.

Q: What is the significance of AEC-Q200 qualification on the ERJ-12SF6493U?

A: AEC-Q200 is an automotive industry standard qualification demonstrating enhanced reliability testing and performance validation. This certification is relevant only if your application requires automotive-grade components. For general industrial use, this qualification provides no additional benefit but indicates robust manufacturing standards.

Q: Can I use either component interchangeably in my PCB design?

A: From a circuit design perspective, yes. Both components have identical electrical characteristics for the 649 kOhms ±1% specification. PCB layout and assembly processes require no modification. Verify compliance requirements (RoHS status) and confirm component availability before finalizing procurement decisions.

Q: What is the difference between "ROHS3 Compliant" and "RoHS non-compliant"?

A: ROHS3 Compliant indicates the RC5025F6493CS meets current Restriction of Hazardous Substances directives, restricting lead and other hazardous materials. RoHS non-compliant status for the ERJ-12SF6493U indicates this component may contain restricted substances. Selection depends on application regulatory jurisdiction and customer requirements.

Q: Are there any thermal performance differences between these components?

A: Both components share identical temperature coefficient (±100ppm/°C) and operating range (-55°C to 155°C). The ERJ-12SF6493U's higher power rating provides greater thermal headroom, but this does not affect performance characteristics in circuits designed for the 0.667W specification.