RC2012F21R0CS Equivalent & Substitute Parts

Part Overview

The RC2012F21R0CS is a 21 Ohm ±1% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status with moisture resistant characteristics and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to ensure direct circuit board replacement capability.

Substiute Parts

RC2012F21R0CS

Samsung Electro-MechanicsIn Stock: 1139RC2012F21R0CS Datasheet

Current PartRFQ

ERJ-6ENF21R0V

Panasonic Electronic ComponentsIn Stock: 86159ERJ-6ENF21R0V Datasheet

DirectRFQ

KTR10EZPF21R0

Rohm SemiconductorIn Stock: 8759KTR10EZPF21R0 Datasheet

DirectRFQ

RMCF0805FT21R0

Stackpole Electronics IncIn Stock: 5385RMCF0805FT21R0 Datasheet

DirectRFQ

CRCW080521R0FKEA

Vishay DaleIn Stock: 27306CRCW080521R0FKEA Datasheet

SimilarRFQ

MCR10ERTF21R0

Rohm SemiconductorIn Stock: 3689MCR10ERTF21R0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC2012F21R0CS are qualified based on the following criteria:

Electrical Parameters (Must Match):

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

Mechanical Parameters (Must Match):

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

Compliance Parameters (Must Match):

• RoHS3 compliance
• MSL 1 rating
• REACH unaffected status

Packaging Format: Substitutes are available in Tape & Reel (TR) format matching the original specification, with one alternative available in Cut Tape (CT) & Digi-Reel® format.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Active Status, Tape & Reel Packaging):

ERJ-6ENF21R0V, KTR10EZPF21R0, RMCF0805FT21R0, and CRCW080521R0FKEA are all Active product status components available in Tape & Reel packaging. These parts meet all electrical and mechanical specifications for direct substitution with the RC2012F21R0CS. All substitute options maintain ROHS3 compliance, MSL 1 rating, and identical operating temperature ranges.

Automotive-Qualified Alternatives:

ERJ-6ENF21R0V (Panasonic), KTR10EZPF21R0 (Rohm), and RMCF0805FT21R0 (Stackpole) carry AEC-Q200 automotive qualification. These components are suitable for applications requiring automotive-grade reliability standards.

Height Considerations:

CRCW080521R0FKEA features the lowest seated height at 0.020" (0.50mm) compared to 0.026" (0.65mm) for most alternatives. ERJ-6ENF21R0V has a maximum seated height of 0.028" (0.70mm). Height differences must be evaluated for PCB clearance requirements in space-constrained designs.

Packaging Format:

MCR10ERTF21R0 is available only in Cut Tape (CT) & Digi-Reel® format and carries Discontinued at DiGi Electronics status. This part is not recommended for new designs requiring standard Tape & Reel packaging.

Frequently Asked Questions (FAQ)

Q: Can ERJ-6ENF21R0V replace RC2012F21R0CS directly on the PCB?

A: Yes. ERJ-6ENF21R0V matches all critical electrical parameters (21 Ohms ±1%, 0.125W, ±100ppm/°C, -55°C to 155°C) and mechanical specifications (0805 package, 2.00mm x 1.25mm dimensions). The maximum seated height difference of 0.002" (0.02mm) is within standard PCB assembly tolerances.

Q: What is the difference between Direct and Similar substitute classifications?

A: Direct substitutes (ERJ-6ENF21R0V, KTR10EZPF21R0, RMCF0805FT21R0) meet all specifications with identical or negligible variations. Similar substitutes (CRCW080521R0FKEA, MCR10ERTF21R0) meet all electrical and mechanical requirements but may have minor physical differences such as seated height or packaging format variations.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification matching the original RC2012F21R0CS specification.

Q: Which substitute offers the best availability?

A: CRCW080521R0FKEA (Vishay Dale) has the highest inventory level at 27,280 pieces. ERJ-6ENF21R0V (Panasonic) has 86,058 pieces in stock. Both are suitable for high-volume production requirements.

Q: Can MCR10ERTF21R0 be used as a substitute?

A: MCR10ERTF21R0 meets all electrical and mechanical specifications but is classified as Discontinued at DiGi Electronics and available only in Cut Tape & Digi-Reel® packaging rather than standard Tape & Reel format. Use is not recommended for new designs.

Q: What is the significance of AEC-Q200 qualification on substitute parts?

A: AEC-Q200 certification indicates automotive-grade reliability qualification. ERJ-6ENF21R0V, KTR10EZPF21R0, RMCF0805FT21R0, and CRCW080521R0FKEA all carry this certification, making them suitable for automotive and high-reliability applications requiring enhanced quality standards.

Q: Are there any height restrictions when selecting a substitute?

A: Height differences range from 0.020" to 0.028" (0.50mm to 0.70mm). For standard PCB designs, these variations are acceptable. Applications with tight vertical clearance constraints should specify CRCW080521R0FKEA (0.020" maximum height) or avoid ERJ-6ENF21R0V (0.028" maximum height).