RC2012F21R5CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012F21R5CS is a 21.5 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 and is RoHS3 compliant with REACH unaffected designation. The part is supplied in Tape & Reel packaging with moisture resistant characteristics and unlimited moisture sensitivity level (MSL 1). 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

RC2012F21R5CS

Samsung Electro-MechanicsIn Stock: 1062RC2012F21R5CS Datasheet

Current PartRFQ

RC0805FR-0721R5L

YAGEOIn Stock: 1748RC0805FR-0721R5L Datasheet

DirectRFQ

CRCW080521R5FKEA

Vishay DaleIn Stock: 20925CRCW080521R5FKEA Datasheet

SimilarRFQ

ERJ-6ENF21R5V

Panasonic Electronic ComponentsIn Stock: 68079ERJ-6ENF21R5V Datasheet

SimilarRFQ

RMCF0805FT21R5

Stackpole Electronics IncIn Stock: 3406RMCF0805FT21R5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC2012F21R5CS are classified into two categories based on substitution criteria:

Direct Substitutes share identical electrical specifications (21.5 Ohms ±1%, 0.125W), mechanical package format (0805), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). These parts maintain equivalent performance characteristics and are interchangeable at the circuit design level.

Similar Substitutes meet all core electrical and mechanical requirements but include additional automotive-grade certifications (AEC-Q200). These parts exceed the base specification requirements and are suitable for applications requiring enhanced reliability standards.

The substitution logic is determined by the following parameters:

• Resistance value and tolerance matching
• Power rating equivalence
• Package/case dimensional compatibility
• Composition type consistency
• Temperature coefficient alignment
• Operating temperature range coverage
• RoHS and environmental compliance status

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and full RoHS3 compliance, ensuring regulatory alignment with the original RC2012F21R5CS specification. Selection between substitute options is determined by application requirements and supply chain considerations.

RC0805FR-0721R5L (YAGEO) provides direct electrical and mechanical equivalence with minimal height variation (0.60mm seated height). This part is suitable for standard industrial applications requiring standard-grade thick film resistor performance.

CRCW080521R5FKEA (Vishay Dale), ERJ-6ENF21R5V (Panasonic), and RMCF0805FT21R5 (Stackpole) incorporate AEC-Q200 automotive-grade certification. These parts are specified for applications requiring enhanced reliability qualification and automotive supply chain compliance. Height variations range from 0.50mm to 0.70mm seated, all within typical PCB assembly tolerances for 0805 package format.

All substitute parts share identical electrical performance characteristics (21.5 Ohms ±1%, 0.125W, ±100ppm/°C temperature coefficient, -55°C ~ 155°C operating range) and are mechanically compatible with 0805 footprints. Selection should be based on application classification (standard industrial versus automotive), supply availability, and PCB assembly process requirements.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-0721R5L replace RC2012F21R5CS in any application?

A: RC0805FR-0721R5L is electrically and mechanically equivalent to RC2012F21R5CS. Both parts share identical resistance (21.5 Ohms ±1%), power rating (0.125W), package format (0805), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The seated height difference (0.60mm versus 0.66mm) is within standard PCB assembly tolerances for 0805 components. Direct substitution is valid for standard industrial applications.

Q: What is the difference between standard and AEC-Q200 rated substitutes?

A: CRCW080521R5FKEA, ERJ-6ENF21R5V, and RMCF0805FT21R5 include AEC-Q200 automotive-grade certification, indicating compliance with automotive reliability and qualification standards. The original RC2012F21R5CS does not carry this certification. AEC-Q200 rated parts are specified for automotive and high-reliability applications. Standard-grade parts (RC2012F21R5CS and RC0805FR-0721R5L) are suitable for general industrial use.

Q: Are all substitute parts RoHS3 compliant?

A: All listed parts, including the original RC2012F21R5CS and all substitutes, are RoHS3 compliant with REACH unaffected status. This ensures regulatory compliance across all options for applications subject to environmental and hazardous substance restrictions.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and does not require special moisture control during storage or handling. All listed parts carry this rating, eliminating moisture sensitivity as a selection criterion and simplifying supply chain management.

Q: Can height variation between substitute parts affect PCB assembly?

A: Seated height variations range from 0.50mm (CRCW080521R5FKEA) to 0.70mm (ERJ-6ENF21R5V). These variations are within standard PCB assembly process tolerances for 0805 components and do not affect solder reflow, wave soldering, or automated placement processes. Height differences are not a limiting factor for substitution.

Q: Which substitute part offers the best availability?

A: ERJ-6ENF21R5V (Panasonic) shows the highest inventory level at 68,018 pieces. CRCW080521R5FKEA (Vishay Dale) provides 20,866 pieces. RC0805FR-0721R5L (YAGEO) offers 1,639 pieces. RMCF0805FT21R5 (Stackpole) has 3,300 pieces available. Availability should be verified with current supplier inventory at time of procurement.

Q: Are all parts supplied in Tape & Reel packaging?

A: All listed parts, including the original RC2012F21R5CS and all substitutes, are supplied in Tape & Reel (TR) packaging format, ensuring compatibility with automated PCB assembly equipment and standard component handling processes.