Equivalent & Substitute Parts for RCS2012F304CS

Part Overview

The RCS2012F304CS is a 300 kOhms ±1% 0.125W (1/8W) thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). The part features anti-sulfur and moisture-resistant construction suitable for general industrial and consumer applications. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to support procurement flexibility and supply chain continuity.

Substiute Parts

RCS2012F304CS

Samsung Electro-MechanicsIn Stock: 841RCS2012F304CS Datasheet

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AC0805FR-07300KL

YAGEOIn Stock: 2523AC0805FR-07300KL Datasheet

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CRCW0805300KFKEA

Vishay DaleIn Stock: 29791CRCW0805300KFKEA Datasheet

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CRCW0805300KFKEAHP

Vishay DaleIn Stock: 18712CRCW0805300KFKEAHP Datasheet

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ERJ-6ENF3003V

Panasonic Electronic ComponentsIn Stock: 128807ERJ-6ENF3003V Datasheet

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KTR10EZPF3003

Rohm SemiconductorIn Stock: 5102KTR10EZPF3003 Datasheet

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RC0805FR-07300KL

YAGEOIn Stock: 1563RC0805FR-07300KL Datasheet

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RCS0805300KFKEA

Vishay DaleIn Stock: 16128RCS0805300KFKEA Datasheet

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RMCF0805FT300K

Stackpole Electronics IncIn Stock: 73720RMCF0805FT300K Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F304CS are qualified based on the following criteria:

Primary Matching Parameters:

• Resistance value: 300 kOhms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W) or higher
• Package: 0805 (2012 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Terminations: 2
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

Substitution Logic: Parts are grouped into two categories based on power rating compatibility:

Category A - Direct Equivalents (0.125W / 1/8W): AC0805FR-07300KL, CRCW0805300KFKEA, ERJ-6ENF3003V, KTR10EZPF3003, RC0805FR-07300KL, and RMCF0805FT300K. These parts match all electrical and mechanical specifications of the main part and are suitable for direct substitution in applications requiring 0.125W power dissipation.

Category B - Higher Power Rating (0.5W / 1/2W): CRCW0805300KFKEAHP and RCS0805300KFKEA. These parts maintain identical resistance, tolerance, package, and temperature specifications but feature increased power rating of 0.5W (1/2W). These are suitable for applications requiring higher power dissipation capability while maintaining the same footprint and electrical characteristics.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical dimensional specifications within the 0805 package standard.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (0.125W Applications):

Select from AC0805FR-07300KL, CRCW0805300KFKEA, ERJ-6ENF3003V, KTR10EZPF3003, RC0805FR-07300KL, or RMCF0805FT300K when the application circuit is designed for 0.125W power dissipation. All these parts maintain identical electrical specifications and ROHS3 compliance. Selection among these options may be based on packaging preference (Tape & Reel versus Cut Tape & Digi-Reel) and component availability.

For Higher Power Dissipation (0.5W Applications):

Select CRCW0805300KFKEAHP or RCS0805300KFKEA when the application requires 0.5W power rating capability. These parts maintain the same 0805 footprint and all other electrical parameters while providing increased power handling capacity. These are suitable for designs requiring thermal margin or higher power dissipation in the same package size.

Compliance Considerations:

All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental and regulatory requirements of the main part RCS2012F304CS. All parts operate across the identical temperature range of -55°C to 155°C.

Packaging Considerations:

The main part RCS2012F304CS is supplied in Tape & Reel (TR) packaging. Substitute parts are available in both Tape & Reel and Cut Tape & Digi-Reel formats. Verify packaging compatibility with assembly equipment and procurement requirements before final selection.

Frequently Asked Questions (FAQ)

Q: Can I substitute a 0.5W rated resistor (CRCW0805300KFKEAHP or RCS0805300KFKEA) for the 0.125W RCS2012F304CS?

A: Yes. The 0.5W parts maintain identical resistance, tolerance, temperature coefficient, and operating temperature range. The higher power rating provides additional thermal margin and is electrically compatible with circuits designed for 0.125W dissipation. The 0805 package footprint remains unchanged.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference are ROHS3 compliant with MSL 1 (Unlimited) rating, matching the environmental compliance of the main part RCS2012F304CS.

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

A: Tape & Reel (TR) packaging supplies components on continuous tape suitable for high-volume automated assembly. Cut Tape & Digi-Reel packaging provides components on cut tape segments or alternative reel formats, typically for lower-volume applications or manual assembly. Both formats contain identical components; packaging selection depends on assembly process requirements.

Q: Do all substitute parts have the same physical dimensions?

A: All parts share the same 0805 (2012 Metric) package with dimensions 0.079" L x 0.049" W (2.00mm x 1.25mm). Height varies slightly between manufacturers (0.50mm to 0.70mm maximum seated height), but all remain within 0805 package specifications and are suitable for standard PCB assembly processes.

Q: Can I use AC0805FR-07300KL or RC0805FR-07300KL interchangeably?

A: Both are YAGEO 300 kOhms ±1% 0.125W 0805 resistors with identical electrical specifications. AC0805FR-07300KL is supplied in Tape & Reel format, while RC0805FR-07300KL is supplied in Cut Tape & Digi-Reel format. Selection depends on packaging compatibility with your assembly process.

Q: What determines whether a part qualifies as a substitute for RCS2012F304CS?

A: Substitution is based on matching resistance value (300 kOhms), tolerance (±1%), package (0805), composition (Thick Film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), RoHS compliance (ROHS3), and MSL rating (1). Power rating may be equal or higher than 0.125W.

Q: Are there any automotive-qualified alternatives?

A: Yes. AC0805FR-07300KL, CRCW0805300KFKEA, CRCW0805300KFKEAHP, ERJ-6ENF3003V, KTR10EZPF3003, RCS0805300KFKEA, and RMCF0805FT300K all carry AEC-Q200 automotive qualification. The main part RCS2012F304CS does not list AEC-Q200 qualification.