RC0603F123CS Equivalent & Substitute Parts Reference

Part Overview

The RC0603F123CS is a 12 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.05W (1/20W) in a 0201 (0603 Metric) surface mount package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component's functional requirements in circuit applications.

Substiute Parts

RC0603F123CS

Samsung Electro-MechanicsIn Stock: 945RC0603F123CS Datasheet

Current PartRFQ

CRCW020112K0FKED

Vishay DaleIn Stock: 78105CRCW020112K0FKED Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC0603F123CS is determined by strict alignment of the following critical parameters:

Electrical Parameters (Must Match Exactly):

• Resistance value: 12 kOhms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Composition: Thick Film

Mechanical Parameters (Must Match Exactly):

• Package / Case: 0201 (0603 Metric)
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm)
• Number of terminations: 2

Compliance Parameters (Must Match or Exceed):

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The CRCW020112K0FKED from Vishay Dale meets all mandatory electrical and mechanical criteria. Both components share identical resistance, tolerance, power rating, package designation, and physical dimensions. Both maintain RoHS3 compliance and MSL 1 rating, ensuring functional and environmental equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The CRCW020112K0FKED qualifies as a direct equivalent substitute for the RC0603F123CS based on the following engineering criteria:

Electrical Equivalence: Both components deliver identical resistance (12 kOhms), tolerance (±1%), and power dissipation capability (0.05W). Thick film composition ensures consistent performance characteristics across both parts.

Mechanical Compatibility: Identical 0201 (0603 Metric) package designation and physical dimensions (0.024" L x 0.012" W) guarantee direct footprint compatibility on printed circuit boards without layout modifications.

Compliance Alignment: Both parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, satisfying regulatory and environmental requirements for equivalent applications.

Performance Enhancement: The Vishay Dale substitute exhibits superior temperature stability (±100ppm/°C versus ±250ppm/°C) and extended operating temperature range (-55°C ~ 155°C versus -55°C ~ 125°C), providing performance margin in demanding thermal environments.

Availability: The substitute part maintains significantly higher inventory levels (78,016 pieces versus 916 pieces), supporting supply chain continuity and procurement flexibility.

Frequently Asked Questions (FAQ)

Q: Can the CRCW020112K0FKED be used as a direct replacement for the RC0603F123CS without circuit redesign?

A: Yes. Both components share identical electrical specifications (12 kOhms ±1%, 0.05W), mechanical dimensions (0201 package, 0.024" L x 0.012" W), and compliance certifications (RoHS3, MSL 1). Direct substitution requires no circuit modifications or PCB layout changes.

Q: What are the key differences between these two parts?

A: The primary differences are manufacturer identity and temperature performance characteristics. The Vishay Dale substitute exhibits tighter temperature coefficient (±100ppm/°C versus ±250ppm/°C) and extended maximum operating temperature (155°C versus 125°C). These represent performance enhancements rather than functional limitations.

Q: Are both parts suitable for high-temperature applications?

A: The RC0603F123CS operates to 125°C maximum. The CRCW020112K0FKED extends to 155°C, providing additional thermal margin. Application requirements determine which operating range is appropriate.

Q: Do packaging and moisture sensitivity ratings differ between these parts?

A: No. Both components are supplied in Tape & Reel (TR) packaging, feature 0201 (0603 Metric) case designation, and maintain MSL 1 (Unlimited) moisture sensitivity rating. Storage and handling requirements are identical.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements and supply chain strategy. Both parts satisfy identical functional criteria. The Vishay Dale substitute offers superior temperature stability and higher inventory availability. The Samsung part may be preferred if existing supply relationships or design history favor that manufacturer.

Q: Are there any electrical performance differences in circuit operation?

A: No measurable differences exist in nominal resistance, tolerance, or power dissipation. Both components deliver 12 kOhms ±1% at 0.05W. The temperature coefficient difference affects long-term drift characteristics in extreme thermal environments but does not impact standard circuit operation.