RC5025F5493CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F5493CS is a 549 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.667W (2/3W) power dissipation in the 2010 (5025 Metric) package format. This component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package standard, enabling component procurement flexibility while preserving circuit performance and reliability requirements.

Substiute Parts

RC5025F5493CS

Samsung Electro-MechanicsIn Stock: 834RC5025F5493CS Datasheet

Current PartRFQ

RMCF2010FT549K

Stackpole Electronics IncIn Stock: 1404RMCF2010FT549K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F5493CS is determined by strict alignment of the following critical parameters:

Mandatory Matching Criteria:

• Resistance value: 549 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package format: 2010 (5025 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• RoHS compliance: ROHS3 (exact match required)

Allowable Variation Parameters:

• Power rating: Substitute parts may exceed the original 0.667W specification, provided the higher rating does not introduce incompatible physical dimensions or thermal characteristics that would affect circuit board layout or thermal management design
• Physical dimensions: Minor variations in height (seated maximum) are acceptable within the 2010 package standard, provided footprint length and width remain 5.00mm x 2.50mm
• Moisture sensitivity level: Substitute parts must maintain MSL 1 or equivalent unlimited rating
• Packaging format: Original specification does not restrict packaging type (Cut Tape, Tape & Reel, etc.)

The RMCF2010FT549K from Stackpole Electronics Inc qualifies as a direct substitute based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

The RMCF2010FT549K qualifies as a direct electrical and mechanical substitute for the RC5025F5493CS based on the following engineering criteria:

Electrical Compatibility: Both components maintain identical resistance value (549 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute part's higher power rating (0.75W versus 0.667W) provides additional thermal margin without introducing circuit performance degradation.

Mechanical Compatibility: Both components utilize the 2010 (5025 Metric) package format with identical footprint dimensions (5.00mm x 2.50mm). The seated height variation (0.70mm versus 0.66mm) remains within standard PCB assembly tolerances and does not compromise board layout or component density.

Regulatory and Compliance Alignment: Both parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring equivalent handling, storage, and environmental performance characteristics.

Product Status: Both components are classified as Active products with established supply chains and manufacturing continuity.

Enhanced Qualification: The substitute part carries Automotive AEC-Q200 qualification, which represents an enhanced reliability standard applicable to automotive and high-reliability applications. This qualification does not restrict use in non-automotive applications and provides additional assurance of manufacturing process control and quality standards.

Frequently Asked Questions (FAQ)

Q: Can the RMCF2010FT549K be used as a direct replacement for the RC5025F5493CS in existing designs?

A: Yes. Both components share identical electrical specifications (549 kOhms ±1%, ±100ppm/°C, -55°C ~ 155°C operating range) and mechanical compatibility (2010 package, 5.00mm x 2.50mm footprint). The substitute part's higher power rating (0.75W) and enhanced AEC-Q200 qualification do not introduce incompatibility.

Q: What is the significance of the power rating difference (0.667W versus 0.75W)?

A: The substitute part's higher power rating indicates greater thermal dissipation capacity. In circuit applications where the original 0.667W rating was adequate, the 0.75W rated component will operate at lower junction temperature under identical load conditions, providing improved reliability margin. No circuit redesign is required.

Q: Are there any PCB layout considerations due to the height difference (0.66mm versus 0.70mm)?

A: The 0.04mm height variation falls within standard PCB assembly process tolerances and does not require layout modification. Both components conform to the 2010 (5025 Metric) package standard with identical footprint dimensions.

Q: Does the Automotive AEC-Q200 qualification on the substitute part restrict its use in non-automotive applications?

A: No. AEC-Q200 qualification represents an enhanced manufacturing and reliability standard. Components meeting this qualification are suitable for all applications, including non-automotive circuits. The qualification does not introduce restrictions or incompatibilities.

Q: Are moisture handling requirements identical between the two parts?

A: Yes. Both components maintain MSL 1 (Unlimited) moisture sensitivity level, indicating identical handling, storage, and reflow process requirements. No changes to component management procedures are necessary.

Q: What is the basis for confirming substitute part compatibility?

A: Compatibility is established through exact matching of critical electrical parameters (resistance, tolerance, temperature coefficient, operating range), mechanical parameters (package format, footprint dimensions), and regulatory compliance (ROHS3, MSL 1). The substitute part meets or exceeds all specified criteria.