RC5025F1780CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F1780CS is a 178 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2010 (5025 Metric) package format. This component delivers 0.667W (2/3W) power dissipation with moisture-resistant construction and operates across the -55°C to 155°C temperature range. The part maintains Active product status with 864 units currently in stock.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the critical parameters: resistance value, tolerance, package format, and operating temperature range. Alternative sources become necessary for supply chain continuity, extended lead times, or design requirement changes.

Substiute Parts

RC5025F1780CS

Samsung Electro-MechanicsIn Stock: 964RC5025F1780CS Datasheet

Current PartRFQ

CRCW2010178RFKEF

Vishay DaleIn Stock: 2919CRCW2010178RFKEF Datasheet

SimilarRFQ

ERJ-12SF1780U

Panasonic Electronic ComponentsIn Stock: 1801ERJ-12SF1780U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Mandatory Matching Criteria:

• Resistance value: 178 Ohms
• Tolerance: ±1%
• Package format: 2010 (5025 Metric)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Termination count: 2
• RoHS3 compliance

Allowable Variation:

• Power rating: Substitute parts may exceed the 0.667W specification (0.75W acceptable) provided all other parameters remain equivalent
• Packaging format: Cut Tape (CT), Tape & Reel (TR), or Digi-Reel® are mechanically compatible with the 2010 package
• Product status: Active or Not For New Designs status does not disqualify substitution based on electrical equivalence

The identified substitute parts CRCW2010178RFKEF and ERJ-12SF1780U meet all mandatory criteria with higher power ratings (0.75W) and automotive-grade certifications (AEC-Q200).

Parameter Comparison

Engineering Selection Recommendations

CRCW2010178RFKEF (Vishay Dale) is the primary substitute for new designs and production applications. This part maintains Active product status, carries AEC-Q200 automotive qualification, and provides 0.75W power rating with identical electrical specifications. The higher power rating offers design margin without compromising compatibility. Current inventory of 2901 units supports immediate availability.

ERJ-12SF1780U (Panasonic Electronic Components) is electrically equivalent with matching AEC-Q200 automotive certification and 0.75W power rating. However, this part carries Not For New Designs status, indicating manufacturer discontinuation trajectory. Selection of ERJ-12SF1780U is appropriate only for legacy system maintenance or when existing design validation has been completed against this specific part number. Inventory of 1702 units is available.

Both substitute parts exceed the mechanical height specification (0.028" vs. 0.026" maximum) by 0.002 inches. This variance remains within typical PCB assembly tolerances for 2010 package components and does not affect electrical performance or mechanical fit in standard applications.

Frequently Asked Questions (FAQ)

Q: Can CRCW2010178RFKEF replace RC5025F1780CS in existing designs?

A: Yes. Both parts share identical resistance (178 Ohms), tolerance (±1%), package format (2010), temperature coefficient (±100ppm/°C), and operating range (-55°C ~ 155°C). The substitute provides higher power rating (0.75W vs. 0.667W), which is compatible with circuits designed for the original part. Height difference of 0.002 inches is within standard PCB assembly tolerances.

Q: What is the significance of AEC-Q200 certification on substitute parts?

A: AEC-Q200 is an automotive industry qualification standard. CRCW2010178RFKEF and ERJ-12SF1780U both carry this certification, indicating enhanced reliability testing and quality assurance. This certification is not present on the RC5025F1780CS specification but does not prevent substitution in non-automotive applications.

Q: Why is ERJ-12SF1780U marked "Not For New Designs"?

A: This status indicates the manufacturer (Panasonic) is transitioning this part toward discontinuation. Existing inventory remains available for legacy system support, but new product designs should prioritize CRCW2010178RFKEF or other Active-status alternatives to ensure long-term supply chain stability.

Q: Are there mechanical compatibility concerns with the substitute parts?

A: The substitute parts (CRCW2010178RFKEF and ERJ-12SF1780U) have maximum seated heights of 0.028 inches compared to 0.026 inches for RC5025F1780CS. This 0.002-inch difference is within standard PCB assembly tolerances for 2010 package components and does not affect fit or function in typical applications.

Q: What packaging formats are available for substitute parts?

A: CRCW2010178RFKEF is supplied in Cut Tape (CT) and Digi-Reel® formats. ERJ-12SF1780U is supplied in Tape & Reel (TR) format. All formats are compatible with standard automated assembly equipment for 2010 package components.

Q: Do all parts meet RoHS3 compliance requirements?

A: Yes. RC5025F1780CS, CRCW2010178RFKEF, and ERJ-12SF1780U are all ROHS3 Compliant. All parts are REACH Unaffected and classified under ECCN EAR99 for export purposes.