RCS2012F2102CS Equivalent & Substitute Parts

Part Overview

The RCS2012F2102CS is a 21 kOhms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status and features anti-sulfur and moisture-resistant construction. The RCS2012F2102CS is suitable for general industrial and consumer applications requiring standard tolerance resistive elements. Substitute parts are identified based on matching electrical specifications, mechanical compatibility, and package standardization to support design flexibility and supply chain continuity.

Substiute Parts

RCS2012F2102CS

Samsung Electro-MechanicsIn Stock: 887RCS2012F2102CS Datasheet

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AC0805FR-0721KL

YAGEOIn Stock: 5987AC0805FR-0721KL Datasheet

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CRCW080521K0FKEA

Vishay DaleIn Stock: 15299CRCW080521K0FKEA Datasheet

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ERJ-6ENF2102V

Panasonic Electronic ComponentsIn Stock: 116130ERJ-6ENF2102V Datasheet

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RC0805FR-0721KL

YAGEOIn Stock: 121679RC0805FR-0721KL Datasheet

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RMCF0805FT21K0

Stackpole Electronics IncIn Stock: 71820RMCF0805FT21K0 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F2102CS are qualified based on the following criteria:

Electrical Parameters (Critical):

• Resistance value: 21 kOhms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Critical):

• Package type: 0805 (2012 Metric)
• Number of terminations: 2
• Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)

Compliance Parameters:

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Unaffected status

All identified substitute parts match these core parameters. Variations in seated height and specific feature sets (automotive AEC-Q200 certification, anti-sulfur coating) do not affect functional interchangeability within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts are Active product status and ROHS3 compliant. Selection among substitute parts should be based on the following factors:

General Applications: RC0805FR-0721KL (YAGEO) and RCS2012F2102CS (Samsung Electro-Mechanics) are suitable for standard industrial and consumer applications without automotive requirements.

Automotive Applications: AC0805FR-0721KL (YAGEO), CRCW080521K0FKEA (Vishay Dale), ERJ-6ENF2102V (Panasonic), and RMCF0805FT21K0 (Stackpole) carry AEC-Q200 automotive qualification and are appropriate for automotive-grade circuit designs.

Physical Constraints: Height-seated maximum values range from 0.50mm to 0.70mm. Applications with strict PCB clearance requirements should reference specific height specifications. CRCW080521K0FKEA offers the lowest profile at 0.50mm maximum height.

Supply Availability: All substitute parts maintain Active product status with confirmed inventory levels ranging from 5,900 to 121,599 units.

Frequently Asked Questions (FAQ)

Q: Can RCS2012F2102CS be directly replaced with any of the listed substitute parts?

A: Yes. All substitute parts match the critical electrical parameters (21 kOhms ±1%, 0.125W, ±100ppm/°C, -55°C to 155°C) and mechanical specifications (0805 package, 2-termination configuration). Physical height variations (0.50mm to 0.70mm) are within standard 0805 package tolerances and do not affect electrical performance or PCB assembly compatibility.

Q: What is the difference between automotive-qualified and non-automotive substitute parts?

A: Automotive-qualified parts (AC0805FR-0721KL, CRCW080521K0FKEA, ERJ-6ENF2102V, RMCF0805FT21K0) carry AEC-Q200 certification, indicating compliance with automotive reliability and quality standards. Non-automotive parts (RCS2012F2102CS, RC0805FR-0721KL) are suitable for general industrial and consumer applications. Selection depends on end-application requirements, not electrical interchangeability.

Q: Are there any package compatibility concerns when substituting parts?

A: No. All parts use the 0805 (2012 Metric) package with identical footprint dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm). PCB layout and assembly processes remain unchanged. Height variations are within standard component tolerances and do not affect solder joint formation or clearance to adjacent components.

Q: Do all substitute parts meet the same environmental and compliance standards?

A: Yes. All parts are ROHS3 compliant, REACH unaffected, and classified as Moisture Sensitivity Level 1 (Unlimited). All operate across the identical temperature range (-55°C to 155°C) with matching temperature coefficients (±100ppm/°C).

Q: Which substitute part should be selected for cost optimization?

A: Cost optimization requires consultation with component distributors for current pricing and availability. All parts maintain equivalent electrical and mechanical specifications. Selection based on inventory levels and supplier terms is appropriate for supply chain planning.