RC0603J392CS Equivalent & Substitute Parts Reference

Part Overview

The RC0603J392CS is a 3.9 kOhms ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0201 (0603 Metric) package format. This surface mount device is rated for 0.05W (1/20W) power dissipation and operates across -55°C to 125°C. The component is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and is currently active in production with 674 pieces in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when design requirements demand improved tolerance specifications, or when alternative sourcing is required for supply chain optimization.

Substiute Parts

RC0603J392CS

Samsung Electro-MechanicsIn Stock: 772RC0603J392CS Datasheet

Current PartRFQ

CRCW02013K90FKED

Vishay DaleIn Stock: 28336CRCW02013K90FKED Datasheet

UpgradeRFQ

MCR006YRTF3901

Rohm SemiconductorIn Stock: 1017MCR006YRTF3901 Datasheet

SimilarRFQ

MCR006YRTJ392

Rohm SemiconductorIn Stock: 12064MCR006YRTJ392 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC0603J392CS is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 3.9 kOhms
• Package format: 0201 (0603 Metric)
• Power rating: 0.05W (1/20W)
• Composition: Thick Film
• Termination count: 2
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

Allowable Variation Parameters:

• Tolerance: ±5% (main part) to ±1% (substitute) — tighter tolerance is acceptable
• Temperature coefficient: ±250ppm/°C (main part) to ±100ppm/°C (substitute) — lower coefficient is acceptable
• Operating temperature range: -55°C to 125°C (main part) to -55°C to 155°C (substitute) — extended range is acceptable
• Packaging format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® — both acceptable for assembly

Substitutes are grouped into two categories: Upgrade (improved tolerance) and Similar (equivalent tolerance with alternative sourcing).

Parameter Comparison

Engineering Selection Recommendations

CRCW02013K90FKED (Vishay Dale) — Upgrade Substitute

This part is the preferred upgrade substitute for RC0603J392CS. It maintains all mandatory electrical and mechanical parameters while providing improved tolerance specification (±1% versus ±5%) and extended operating temperature range (-55°C to 155°C versus -55°C to 125°C). The temperature coefficient is also improved (±100ppm/°C versus ±250ppm/°C). CRCW02013K90FKED is actively produced and maintains ROHS3 compliance with MSL 1 rating. Inventory availability is substantial at 28,235 pieces.

MCR006YRTJ392 (Rohm Semiconductor) — Similar Substitute

This part provides equivalent electrical specifications to RC0603J392CS with matching ±5% tolerance and ±250ppm/°C temperature coefficient. All mechanical and compliance parameters are identical. MCR006YRTJ392 is discontinued at DiGi Electronics but remains available with 11,975 pieces in stock. This substitute is suitable when tolerance upgrade is not required and when existing inventory of Rohm components is preferred.

MCR006YRTF3901 (Rohm Semiconductor) — Similar Substitute with Tolerance Upgrade

This part matches RC0603J392CS in all mandatory parameters while providing improved ±1% tolerance specification. MCR006YRTF3901 is discontinued at DiGi Electronics with limited availability (1,005 pieces in stock). This substitute is suitable for applications requiring tighter tolerance control when CRCW02013K90FKED is unavailable.

Frequently Asked Questions (FAQ)

Q: Can CRCW02013K90FKED replace RC0603J392CS in all applications?

A: CRCW02013K90FKED is electrically and mechanically compatible with RC0603J392CS. The improved tolerance (±1% versus ±5%) and extended temperature range provide enhanced performance characteristics. Substitution is valid for all applications where RC0603J392CS is specified, with the understanding that tighter tolerance may affect circuit tuning or calibration procedures if the design was optimized for ±5% tolerance.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging is supplied on continuous carrier tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) & Digi-Reel® packaging is supplied in shorter tape segments on plastic reels, suitable for lower-volume or mixed-component assembly. Both formats contain identical components; packaging selection depends on assembly equipment and production volume requirements.

Q: Why are MCR006YRTJ392 and MCR006YRTF3901 marked as discontinued?

A: Discontinuation at DiGi Electronics indicates that these parts are no longer actively stocked by this particular distributor. However, inventory remains available through the supplier. Discontinued status does not affect component functionality or compliance. For new designs, CRCW02013K90FKED is recommended as the primary substitute due to active production status and superior availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. RC0603J392CS and all listed substitute parts (CRCW02013K90FKED, MCR006YRTF3901, MCR006YRTJ392) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. All parts are suitable for applications requiring RoHS compliance.

Q: Can I use a substitute part with ±1% tolerance in place of ±5% tolerance specification?

A: Yes. Tighter tolerance is always acceptable as a substitute. A ±1% tolerance part will meet any circuit requirement specified for ±5% tolerance. However, if the circuit design includes calibration or tuning procedures based on ±5% tolerance assumptions, component substitution may require design review.

Q: What is the significance of temperature coefficient differences?

A: Temperature coefficient (ppm/°C) indicates resistance value change per degree Celsius. RC0603J392CS has ±250ppm/°C; CRCW02013K90FKED has ±100ppm/°C. Lower temperature coefficient indicates better stability across temperature variations. For applications operating across the full -55°C to 125°C range, CRCW02013K90FKED provides superior performance with reduced resistance drift.