RC5025F7873CS Equivalent & Substitute Parts

Part Overview

The RC5025F7873CS is a 787 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 is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the critical parameters that define this resistor category. The primary substitute identified is the ERJ-12SF7873U from Panasonic Electronic Components, which shares the same resistance value, tolerance, package dimensions, and operating temperature range, though with a higher power rating and automotive qualification.

Substiute Parts

RC5025F7873CS

Samsung Electro-MechanicsIn Stock: 1028RC5025F7873CS Datasheet

Current PartRFQ

ERJ-12SF7873U

Panasonic Electronic ComponentsIn Stock: 10323ERJ-12SF7873U Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F7873CS is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 787 kOhms (exact match required)
• Tolerance: ±1% (precision class match)
• Package / Case: 2010 (5025 Metric) (physical compatibility)
• Composition: Thick Film (electrical behavior match)
• Temperature Coefficient: ±100ppm/°C (stability match)
• Operating Temperature Range: -55°C ~ 155°C (environmental compatibility)
• RoHS Status: ROHS3 Compliant (regulatory requirement)

Allowable Variation Parameters:

• Power Rating: Equal to or greater than 0.667W (higher ratings provide additional thermal margin)
• Packaging Format: May differ (Tape & Reel acceptable for equivalent component)
• Product Status: Active or Not For New Designs (both acceptable for substitution purposes)
• Moisture Sensitivity Level: MSL 1 (unlimited, no restriction)

The ERJ-12SF7873U qualifies as a substitute because it maintains all mandatory matching parameters while exceeding the power rating requirement (0.75W vs. 0.667W) and maintaining full environmental and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Primary Component (RC5025F7873CS): The RC5025F7873CS maintains Active product status, indicating continued manufacturing support and suitability for new design implementations. This component is the preferred choice for applications where long-term availability and supply chain stability are required.

Substitute Component (ERJ-12SF7873U): The ERJ-12SF7873U is classified as Not For New Designs, indicating that Panasonic has discontinued active promotion of this part for new applications. However, it remains electrically and mechanically compatible with the RC5025F7873CS for existing designs requiring component replacement or inventory supplementation.

The ERJ-12SF7873U includes AEC-Q200 automotive qualification, which provides additional reliability assurance for applications requiring automotive-grade components. The 0.75W power rating provides 12.5% additional thermal margin compared to the 0.667W specification of the main part, allowing operation in higher dissipation scenarios without exceeding rated limits.

The maximum seated height difference of 0.002" (0.04mm) between the two components is negligible for standard PCB assembly processes and does not affect mechanical compatibility or board-level performance.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-12SF7873U be used as a direct replacement for the RC5025F7873CS in existing assemblies?

A: Yes. The ERJ-12SF7873U is mechanically and electrically compatible with the RC5025F7873CS. Both components share identical resistance value (787 kOhms), tolerance (±1%), package dimensions (2010 / 5025 Metric), operating temperature range (-55°C ~ 155°C), and temperature coefficient (±100ppm/°C). The substitute part's higher power rating (0.75W vs. 0.667W) does not create compatibility issues and provides additional thermal margin.

Q: What is the significance of the "Not For New Designs" status on the ERJ-12SF7873U?

A: This designation indicates that Panasonic has discontinued active development and promotion of this part for new circuit designs. However, the component remains available for purchase and is suitable for replacement applications, design revisions, or inventory supplementation. For new designs, the RC5025F7873CS (Active status) is the recommended choice.

Q: Are there dimensional differences that could affect PCB assembly?

A: The maximum seated height differs by 0.002" (0.04mm), with the ERJ-12SF7873U measuring 0.028" (0.70mm) compared to the RC5025F7873CS at 0.026" (0.66mm). This difference is within standard PCB assembly tolerances and does not affect component placement, solder reflow, or board-level functionality.

Q: Do both components meet the same regulatory and compliance standards?

A: Yes. Both the RC5025F7873CS and ERJ-12SF7873U are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Both components carry MSL 1 (unlimited) moisture sensitivity rating, indicating no special storage or handling requirements.

Q: What is the advantage of the ERJ-12SF7873U's AEC-Q200 qualification?

A: AEC-Q200 is an automotive industry reliability standard that specifies enhanced testing and qualification requirements for passive components. This certification indicates that the ERJ-12SF7873U has undergone additional validation for automotive applications, providing higher assurance of long-term reliability in demanding environments. The RC5025F7873CS does not carry this automotive qualification.

Q: Can the higher power rating of the ERJ-12SF7873U cause any issues in the circuit?

A: No. A higher power rating indicates greater thermal capability and does not negatively affect circuit performance. The component will dissipate power according to circuit conditions (I²R), not according to its rated capacity. The additional thermal margin simply provides a safety buffer and may extend component life in high-dissipation scenarios.