RC0603F124CS Equivalent & Substitute Parts Reference

Part Overview

The RC0603F124CS is a 120 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.05W (1/20W) power dissipation 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). The part is designed for applications requiring precision resistive elements in compact form factors with moisture resistance characteristics. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental operating parameters to ensure functional interchangeability in circuit designs.

Substiute Parts

RC0603F124CS

Samsung Electro-MechanicsIn Stock: 1420RC0603F124CS Datasheet

Current PartRFQ

CRCW0201120KFKED

Vishay DaleIn Stock: 46884CRCW0201120KFKED Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC0603F124CS is determined by strict alignment of the following critical parameters:

Electrical Parameters: Resistance value (120 kOhms), tolerance (±1%), and power rating (0.05W / 1/20W) must be identical. These parameters define the functional performance in the circuit.

Mechanical Parameters: Package designation (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm), and seated height (0.010" / 0.26mm maximum) must match to ensure PCB footprint compatibility and assembly process compatibility.

Environmental & Compliance Parameters: Operating temperature range, RoHS3 compliance status, and Moisture Sensitivity Level (MSL 1) must be maintained or exceeded. Substitute parts must function across the specified temperature range and meet or exceed regulatory compliance requirements.

Composition: Thick film construction is required to maintain electrical and thermal characteristics.

The CRCW0201120KFKED from Vishay Dale meets all substitution criteria for the RC0603F124CS.

Parameter Comparison

Engineering Selection Recommendations

The CRCW0201120KFKED (Vishay Dale) is a direct functional equivalent to the RC0603F124CS (Samsung Electro-Mechanics) for applications requiring a 120 kOhms ±1% thick film chip resistor in 0201 package format.

Compliance Basis: Both parts maintain ROHS3 compliance and REACH Unaffected status, meeting regulatory requirements for industrial and commercial applications. Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no moisture-related handling restrictions during assembly and storage.

Electrical Equivalence: Identical resistance value, tolerance, and power rating ensure direct circuit performance equivalence. The substitute part demonstrates superior temperature coefficient performance (±100ppm/°C versus ±250ppm/°C), providing enhanced stability across temperature variations.

Thermal Performance: The substitute part extends the upper operating temperature limit to 155°C compared to 125°C for the original part, providing additional thermal margin in high-temperature applications.

Mechanical Compatibility: Identical package dimensions, footprint, and termination configuration ensure seamless PCB integration and assembly process compatibility without design modification.

Packaging Consideration: The original part is supplied in Cut Tape (CT) packaging, while the substitute is supplied in Tape & Reel (TR) format. This difference affects procurement and assembly logistics but does not impact component functionality or performance.

Frequently Asked Questions (FAQ)

Q: Can CRCW0201120KFKED be used as a direct replacement for RC0603F124CS without circuit redesign?

A: Yes. Both parts share identical electrical specifications (120 kOhms ±1%, 0.05W), mechanical dimensions (0201 / 0603 Metric package), and environmental ratings (MSL 1, -55°C to 125°C minimum). Direct substitution is supported at the circuit level without design modification.

Q: What is the difference between 0201 and 0603 Metric package designations?

A: These designations refer to the same physical package. "0201" is the imperial designation (0.024" x 0.012"), while "0603 Metric" is the metric equivalent (0.60mm x 0.30mm). Both terms describe identical component dimensions and footprints.

Q: Does the substitute part's superior temperature coefficient (±100ppm/°C) affect compatibility?

A: No. A lower temperature coefficient indicates better stability across temperature variations, which is a performance enhancement rather than a compatibility issue. The substitute part maintains or exceeds the original part's performance specifications.

Q: Why does the substitute part have a higher maximum operating temperature (155°C vs. 125°C)?

A: The substitute part is rated for extended thermal operation. This specification difference does not affect compatibility; it indicates the substitute part can operate reliably across a wider temperature range, providing additional design margin for thermal-constrained applications.

Q: What is the significance of packaging format differences (Cut Tape vs. Tape & Reel)?

A: Packaging format affects procurement quantity, storage, and assembly automation compatibility. Cut Tape (CT) is typically used for smaller quantities and manual assembly, while Tape & Reel (TR) is optimized for high-volume automated assembly. Component functionality and electrical performance are unaffected by packaging format.

Q: Are both parts RoHS3 compliant?

A: Yes. Both RC0603F124CS and CRCW0201120KFKED carry ROHS3 Compliant status and REACH Unaffected designation, meeting current regulatory requirements for hazardous substance restrictions.

Q: What does MSL 1 (Unlimited) moisture sensitivity rating mean?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture-control handling during storage, transportation, or assembly. No baking or desiccant storage is required prior to soldering.