RC0603F203CS Equivalent & Substitute Parts

Part Overview

The RC0603F203CS is a 20 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 and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit applications without design modification.

Key Parameters

Parameter	Value
Resistance	20 kOhms
Tolerance	±1%
Power Rating	0.05W (1/20W)
Composition	Thick Film
Package / Case	0201 (0603 Metric)
Size / Dimension	0.024" L x 0.012" W (0.60mm x 0.30mm)
Height - Seated (Max)	0.010" (0.26mm)
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RC0603F203CS is determined by strict alignment of the following critical parameters:

Electrical Specifications: Resistance value (20 kOhms), tolerance (±1%), and power rating (0.05W) must be identical. Thick film composition is required for equivalent performance characteristics.

Mechanical Compatibility: Package type (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W), and maximum seated height (0.010") must match exactly to ensure PCB footprint compatibility and assembly process compatibility.

Environmental & Compliance Requirements: Operating temperature range must encompass or exceed the original specification (-55°C ~ 125°C minimum). RoHS3 compliance and MSL 1 rating are mandatory for equivalent substitution in regulated applications.

Product Status: Only Active status components qualify as direct substitutes, ensuring ongoing manufacturer support and supply chain availability.

Parameter Comparison

Parameter	RC0603F203CS (Samsung)	CRCW020120K0FKED (Vishay Dale)	Match Status
Manufacturer Part Number	RC0603F203CS	CRCW020120K0FKED	Different
Resistance	20 kOhms	20 kOhms	Equivalent
Tolerance	±1%	±1%	Equivalent
Power Rating	0.05W (1/20W)	0.05W (1/20W)	Equivalent
Composition	Thick Film	Thick Film	Equivalent
Package / Case	0201 (0603 Metric)	0201 (0603 Metric)	Equivalent
Size / Dimension	0.024" L x 0.012" W (0.60mm x 0.30mm)	0.024" L x 0.012" W (0.60mm x 0.30mm)	Equivalent
Height - Seated (Max)	0.010" (0.26mm)	0.010" (0.26mm)	Equivalent
Operating Temperature Range	-55°C ~ 125°C	-55°C ~ 155°C	Substitute Exceeds
Temperature Coefficient	±250ppm/°C	±100ppm/°C	Substitute Superior
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
MSL Rating	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

The CRCW020120K0FKED (Vishay Dale) qualifies as a direct substitute for the RC0603F203CS (Samsung Electro-Mechanics) based on the following engineering criteria:

Electrical Equivalence: Both components specify identical resistance (20 kOhms), tolerance (±1%), and power rating (0.05W) with thick film construction. These parameters ensure functional interchangeability in circuit applications.

Mechanical Compatibility: Identical package designation (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W), and maximum seated height (0.010") confirm PCB footprint compatibility and assembly process compatibility without design modification.

Compliance & Certification: Both components maintain ROHS3 compliance and MSL 1 (Unlimited) rating, satisfying regulatory requirements for equivalent substitution in controlled environments.

Product Status: Both components carry Active product status, ensuring manufacturer support, supply chain continuity, and long-term availability.

Performance Advantage: The CRCW020120K0FKED exhibits superior temperature coefficient performance (±100ppm/°C versus ±250ppm/°C) and extended operating temperature range (-55°C ~ 155°C versus -55°C ~ 125°C), providing enhanced stability in temperature-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can the CRCW020120K0FKED replace the RC0603F203CS in existing designs?

A: Yes. Both components share identical electrical specifications (20 kOhms ±1%, 0.05W), mechanical dimensions (0201 package, 0.024" L x 0.012" W), and compliance certifications (ROHS3, MSL 1). Direct substitution is supported without circuit redesign.

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

A: The primary differences are manufacturer identity and performance characteristics. The CRCW020120K0FKED provides superior temperature coefficient stability (±100ppm/°C versus ±250ppm/°C) and extended operating temperature range (-55°C ~ 155°C versus -55°C ~ 125°C). Both differences favor the Vishay Dale component in temperature-sensitive applications.

Q: Are packaging formats compatible?

A: The RC0603F203CS is supplied in Tape & Reel (TR) format, while the CRCW020120K0FKED is supplied in Cut Tape (CT) & Digi-Reel® format. Both formats are standard SMD packaging options. Compatibility depends on assembly equipment and procurement workflow; consult your manufacturing partner for format requirements.

Q: Do both components meet RoHS3 compliance requirements?

A: Yes. Both the RC0603F203CS and CRCW020120K0FKED are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, satisfying regulatory requirements for equivalent substitution in regulated applications.

Q: What is the significance of the temperature coefficient difference?

A: Temperature coefficient (±250ppm/°C versus ±100ppm/°C) indicates resistance value drift across temperature extremes. The CRCW020120K0FKED exhibits lower drift, providing superior stability in applications with wide temperature operating ranges or stringent tolerance requirements.

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