RC0402J203CS Equivalent & Substitute Parts

Part Overview

The RC0402J203CS is a 20 kOhms ±5% chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.03W (1/32W) power dissipation in the 01005 (0402 Metric) package format. This thick film, moisture-resistant component operates across the temperature range of -55°C to 125°C and is ROHS3 compliant with MSL 1 rating. The part is currently in active production status with 999 pieces available in stock. Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and sourcing options while maintaining electrical and mechanical compatibility.

Substiute Parts

RC0402J203CS

Samsung Electro-MechanicsIn Stock: 1067RC0402J203CS Datasheet

Current PartRFQ

CRCW010020K0FREL

Vishay DaleIn Stock: 14543CRCW010020K0FREL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC0402J203CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 20 kOhms
• Package format: 01005 (0402 Metric)
• Power rating: 0.03W (1/32W)
• Composition: Thick Film
• Operating temperature range: -55°C to 125°C
• Number of terminations: 2
• RoHS compliance: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation:

• Tolerance: The substitute part may have equal or tighter tolerance specifications than the original part. A ±1% tolerance substitute is acceptable for applications requiring the ±5% specification.

The CRCW010020K0FREL from Vishay Dale meets all mandatory parameters and provides improved tolerance performance, making it a direct substitute for the RC0402J203CS.

Parameter Comparison

Engineering Selection Recommendations

Both the RC0402J203CS and CRCW010020K0FREL are active production components with full ROHS3 compliance and REACH unaffected status. The primary distinction between these parts is tolerance specification: the Samsung part offers ±5% tolerance, while the Vishay Dale substitute provides ±1% tolerance.

Selection between these parts should be based on application requirements:

RC0402J203CS (Samsung Electro-Mechanics): Select this part when ±5% tolerance meets circuit specifications and Samsung sourcing is preferred or required.

CRCW010020K0FREL (Vishay Dale): Select this part when tighter tolerance control is required, or when Vishay Dale supply chain availability is advantageous. The ±1% tolerance provides improved accuracy for precision applications while maintaining full compatibility with all other electrical and mechanical parameters.

Both parts are suitable for applications operating within the -55°C to 125°C temperature range and are compatible with standard surface mount assembly processes for 01005 package components.

Frequently Asked Questions (FAQ)

Q: Can the CRCW010020K0FREL replace the RC0402J203CS in my circuit?

A: Yes. The CRCW010020K0FREL is a direct substitute. Both parts share identical resistance value, power rating, package format, operating temperature range, and compliance certifications. The substitute part features tighter tolerance (±1% versus ±5%), which provides equal or improved performance in any application designed for the original part.

Q: What is the significance of the tolerance difference between these parts?

A: Tolerance defines the maximum deviation from the nominal resistance value. The RC0402J203CS allows ±5% deviation from 20 kOhms (range: 19-21 kOhms), while the CRCW010020K0FREL allows ±1% deviation (range: 19.8-20.2 kOhms). Applications requiring tighter resistance accuracy benefit from the substitute part's improved tolerance specification.

Q: Are the physical dimensions identical?

A: Yes. Both parts are packaged in the 01005 (0402 Metric) format with identical dimensions of 0.016" L x 0.008" W (0.40mm x 0.20mm) and maximum seated height of 0.006" (0.15mm). They are mechanically interchangeable on PCB layouts designed for this package size.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both the RC0402J203CS and CRCW010020K0FREL are ROHS3 compliant, REACH unaffected, classified as EAR99, and carry MSL 1 (Unlimited) moisture sensitivity rating. They meet identical regulatory and environmental requirements.

Q: What is the temperature coefficient, and does it differ between these parts?

A: Both parts have a temperature coefficient of ±250ppm/°C, indicating identical resistance stability across temperature variations. This parameter is equivalent for both the original and substitute part.

Q: Can I use these parts interchangeably in high-precision applications?

A: The CRCW010020K0FREL is suitable for high-precision applications due to its ±1% tolerance. The RC0402J203CS with ±5% tolerance is suitable for general-purpose applications where tighter tolerance is not required. Selection depends on your circuit's tolerance requirements.

Q: Are there any packaging or tape & reel differences?

A: Both parts are supplied in Tape & Reel (TR) packaging format, standard for automated assembly processes. No packaging differences exist between these components.