RC5025F4423CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F4423CS is a 442 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 with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with 1113 units currently in stock inventory.

Substitute parts become necessary when primary component availability is limited, when design requirements permit higher power ratings, or when specific automotive certifications are required for application compliance.

Substiute Parts

RC5025F4423CS

Samsung Electro-MechanicsIn Stock: 1201RC5025F4423CS Datasheet

Current PartRFQ

CRCW2010442KFKEF

Vishay DaleIn Stock: 12570CRCW2010442KFKEF Datasheet

SimilarRFQ

ERJ-12SF4423U

Panasonic Electronic ComponentsIn Stock: 6993ERJ-12SF4423U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F4423CS is determined by strict adherence to the following parameters:

Mandatory Matching Parameters:

• Resistance value: 442 kOhms
• Tolerance: ±1%
• Package / Case: 2010 (5025 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C to 155°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: MSL 1

Allowable Variation Parameters:

• Power Rating: Substitute parts may exceed 0.667W (higher power ratings are acceptable for drop-in replacement)
• Features: Additional certifications (such as Automotive AEC-Q200) do not disqualify substitution
• Packaging Format: Tape & Reel (TR) is compatible with the component specification

The identified substitute parts meet all mandatory matching parameters while offering equal or superior power ratings and additional automotive qualification where applicable.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: RC5025F4423CS (Samsung Electro-Mechanics)

The RC5025F4423CS maintains Active product status with established supply availability (1113 units in stock). This part is suitable for applications where standard moisture-resistant thick film construction meets design requirements and no automotive qualification is mandated.

Secondary Selection: CRCW2010442KFKEF (Vishay Dale)

The CRCW2010442KFKEF is recommended as the preferred substitute due to Active product status, higher power rating (0.75W vs. 0.667W), and AEC-Q200 automotive qualification. This part provides superior thermal margin and is suitable for automotive and industrial applications. Inventory availability is substantial (12520 units in stock).

Tertiary Selection: ERJ-12SF4423U (Panasonic Electronic Components)

The ERJ-12SF4423U meets all electrical and mechanical substitution criteria with AEC-Q200 automotive certification and 0.75W power rating. However, this part carries "Not For New Designs" product status, limiting its suitability for new development projects. This part is appropriate only for legacy system maintenance or replacement applications where existing design validation has been completed.

Frequently Asked Questions (FAQ)

Q: Can CRCW2010442KFKEF replace RC5025F4423CS in existing designs?

A: Yes. The CRCW2010442KFKEF is a direct electrical and mechanical substitute. Both parts share identical resistance (442 kOhms), tolerance (±1%), package (2010), composition (thick film), and operating temperature range (-55°C to 155°C). The CRCW2010442KFKEF provides higher power rating (0.75W vs. 0.667W), which is acceptable for drop-in replacement applications.

Q: What is the difference in physical dimensions between the main part and substitutes?

A: The RC5025F4423CS has a maximum seated height of 0.026" (0.66mm), while both substitute parts (CRCW2010442KFKEF and ERJ-12SF4423U) have a maximum seated height of 0.028" (0.70mm). The length and width dimensions are identical across all three parts at 0.197" L x 0.098" W (5.00mm x 2.50mm). This 0.002" height difference is negligible for most PCB layout applications.

Q: Is AEC-Q200 certification required for my application?

A: AEC-Q200 certification is required only for automotive applications subject to automotive industry standards. The RC5025F4423CS does not carry this certification. If automotive qualification is mandatory, select either CRCW2010442KFKEF (Active status) or ERJ-12SF4423U (legacy status).

Q: Why is ERJ-12SF4423U marked "Not For New Designs"?

A: The "Not For New Designs" status indicates that Panasonic has discontinued active development and promotion of this part series. While the part remains functionally equivalent and available in inventory (6943 units), it is not recommended for new product development. Use this part only for maintenance, repair, or replacement of existing systems.

Q: Are all three parts RoHS3 compliant?

A: Yes. The RC5025F4423CS, CRCW2010442KFKEF, and ERJ-12SF4423U are all ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity level, indicating no special moisture handling requirements during storage or assembly.

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

A: All three parts specify ±100ppm/°C temperature coefficient. This parameter defines the resistance value change per degree Celsius across the operating temperature range. The identical specification ensures equivalent stability performance across the -55°C to 155°C operating range.