RC2012F4020CS 402 Ohm 1% 1/8W 0805 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC2012F4020CS is a 402 Ohm thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package. This component operates at 0.125W (1/8W) power rating with ±1% tolerance and is rated for operating temperatures from -55°C to 155°C. The part is ROHS3 compliant, moisture resistant, and carries an MSL rating of 1 (Unlimited). The RC2012F4020CS maintains active product status with 982 pieces currently in stock. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and options for applications requiring enhanced automotive qualification or higher power ratings within the same package footprint.

Substiute Parts

RC2012F4020CS

Samsung Electro-MechanicsIn Stock: 1091RC2012F4020CS Datasheet

Current PartRFQ

RC0805FR-07402RL

YAGEOIn Stock: 385923RC0805FR-07402RL Datasheet

DirectRFQ

AC0805FR-07402RL

YAGEOIn Stock: 10939AC0805FR-07402RL Datasheet

UpgradeRFQ

CRCW0805402RFKEA

Vishay DaleIn Stock: 37947CRCW0805402RFKEA Datasheet

SimilarRFQ

CRCW0805402RFKEAHP

Vishay DaleIn Stock: 19681CRCW0805402RFKEAHP Datasheet

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CRCW0805402RFKTA

Vishay DaleIn Stock: 5248CRCW0805402RFKTA Datasheet

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ERJ-6ENF4020V

Panasonic Electronic ComponentsIn Stock: 85564ERJ-6ENF4020V Datasheet

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RCS0805402RFKEA

Vishay DaleIn Stock: 6161RCS0805402RFKEA Datasheet

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RMCF0805FT402R

Stackpole Electronics IncIn Stock: 431936RMCF0805FT402R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC2012F4020CS is determined by strict equivalence across the following critical parameters: resistance value (402 Ohms), tolerance (±1%), package type (0805 / 2012 Metric), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and moisture sensitivity level (MSL 1). All substitute parts listed maintain these core electrical and mechanical specifications.

Substitute parts are grouped into three categories based on additional features and compliance certifications:

Direct Equivalent: Parts with identical power rating (0.125W / 1/8W) and standard industrial compliance.

Upgrade Options: Parts with automotive AEC-Q200 qualification, providing enhanced reliability for automotive applications while maintaining the same power rating and package dimensions.

Higher Power Variants: Parts with increased power rating (0.5W / 1/2W) in the same 0805 package, suitable for applications requiring greater thermal dissipation capacity.

All substitute parts are ROHS3 compliant, carry MSL 1 rating, and operate across the identical temperature range. Physical dimensions remain consistent at 0.079" L x 0.049" W (2.00mm x 1.25mm), with minor variations in seated height that do not affect PCB layout compatibility.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Selection: The RC0805FR-07402RL (YAGEO) serves as a direct functional equivalent to the RC2012F4020CS. Both parts maintain identical electrical specifications, power rating, and package dimensions. The RC0805FR-07402RL is ROHS3 compliant with 385,819 pieces in stock, providing supply chain continuity.

Automotive-Qualified Alternatives: For applications requiring automotive-grade components, the AC0805FR-07402RL (YAGEO), CRCW0805402RFKEA (Vishay Dale), ERJ-6ENF4020V (Panasonic), and RMCF0805FT402R (Stackpole) all carry AEC-Q200 certification. These parts are suitable for automotive and industrial applications demanding enhanced reliability. All four options are ROHS3 compliant and maintain the 0.125W power rating.

Higher Power Rating Option: The CRCW0805402RFKEAHP (Vishay Dale) and RCS0805402RFKEA (Vishay Dale) provide 0.5W (1/2W) power rating in the same 0805 package footprint. These parts are specified for applications requiring greater thermal dissipation while maintaining identical resistance, tolerance, and temperature coefficient. Both include pulse withstanding capability and AEC-Q200 automotive qualification.

Compliance Consideration: The CRCW0805402RFKTA (Vishay Dale) is RoHS non-compliant and REACH affected. This part is not recommended for new designs or applications with RoHS compliance requirements.

Inventory Availability: RMCF0805FT402R (Stackpole) offers the highest inventory availability at 431,897 pieces, followed by RC0805FR-07402RL (YAGEO) at 385,819 pieces, providing robust supply chain options.

Frequently Asked Questions (FAQ)

Q: Can the RC0805FR-07402RL directly replace the RC2012F4020CS without circuit redesign?

A: Yes. The RC0805FR-07402RL is a direct equivalent with identical resistance (402 Ohms), tolerance (±1%), power rating (0.125W), package (0805), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). Physical dimensions are equivalent, and both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between the standard substitute parts and the AEC-Q200 qualified options?

A: AEC-Q200 qualified parts (AC0805FR-07402RL, CRCW0805402RFKEA, ERJ-6ENF4020V, RMCF0805FT402R) undergo additional automotive reliability testing and qualification. These parts are suitable for automotive applications and environments with enhanced reliability requirements. All maintain identical electrical specifications to the RC2012F4020CS.

Q: Can I use the higher power rating variants (0.5W) as substitutes?

A: Yes, the CRCW0805402RFKEAHP and RCS0805402RFKEA (both 0.5W rated) are compatible substitutes. Higher power rating components can be used in applications designed for lower power ratings without electrical or thermal issues. The 0805 package dimensions remain identical, ensuring PCB layout compatibility.

Q: Are there any height differences that affect PCB assembly?

A: Seated height varies slightly across substitute parts, ranging from 0.50mm to 0.70mm compared to the RC2012F4020CS at 0.66mm. These variations are within standard PCB assembly tolerances and do not affect component placement or soldering processes for 0805 package designs.

Q: Why is CRCW0805402RFKTA not recommended?

A: The CRCW0805402RFKTA is RoHS non-compliant and REACH affected. For applications requiring RoHS3 compliance or REACH compliance, this part does not meet regulatory requirements and should not be selected for new designs.

Q: Which substitute part offers the best supply chain availability?

A: The RMCF0805FT402R (Stackpole Electronics Inc) provides the highest inventory at 431,897 pieces in stock. The RC0805FR-07402RL (YAGEO) is the second option with 385,819 pieces available.

Q: Are all substitute parts suitable for the full operating temperature range?

A: Yes. All substitute parts listed operate across the identical temperature range of -55°C to 155°C with a temperature coefficient of ±100ppm/°C, matching the RC2012F4020CS specifications.

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

A: MSL 1 indicates unlimited shelf life without moisture baking requirements. All substitute parts carry MSL 1 rating, meaning they can be stored indefinitely without special moisture control measures, providing equivalent handling and storage characteristics to the RC2012F4020CS.