RCS2012F390CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F390CS is a 39 Ohm, ±1% tolerance, 1/8W (0.125W) thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package. This component is classified as Active product status with anti-sulfur and moisture-resistant characteristics. The part is supplied in Tape & Reel packaging and complies with ROHS3 standards.

Equivalent and substitute parts are identified when design requirements permit tolerance of variations in power rating, automotive qualification, pulse withstanding capability, or packaging format, while maintaining the core electrical specifications of 39 Ohms resistance and ±1% tolerance in the 0805 package footprint.

Substiute Parts

RCS2012F390CS

Samsung Electro-MechanicsIn Stock: 1033RCS2012F390CS Datasheet

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CRCW080539R0FKEA

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CRCW080539R0FKEAHP

Vishay DaleIn Stock: 47233CRCW080539R0FKEAHP Datasheet

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ERJ-6ENF39R0V

Panasonic Electronic ComponentsIn Stock: 198043ERJ-6ENF39R0V Datasheet

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ERJ-UP6F39R0V

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RC0805FR-0739RL

YAGEOIn Stock: 3089RC0805FR-0739RL Datasheet

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RCS080539R0FKEA

Vishay DaleIn Stock: 6115RCS080539R0FKEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F390CS are grouped based on the following substitution criteria:

Primary Substitution Criteria (Mandatory Match):

• Resistance value: 39 Ohms
• Tolerance: ±1%
• Package: 0805 (2012 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• RoHS3 Compliance
• MSL Rating: 1 (Unlimited)

Secondary Variation Parameters (Allowed Differences):

• Power Rating: 0.125W (1/8W) or 0.5W (1/2W)
• Automotive Qualification: AEC-Q200 (optional enhancement)
• Pulse Withstanding Capability: Present or absent
• Packaging Format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel®
• Height - Seated (Max): 0.020" to 0.028" range

Substitutes are valid when the core electrical parameters match exactly and secondary variations represent equal or enhanced capability for the application.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Identical Electrical and Power Specifications):

CRCW080539R0FKEA and ERJ-6ENF39R0V are direct equivalents to RCS2012F390CS. Both maintain 0.125W power rating, 39 Ohm resistance, and ±1% tolerance. Both add Automotive AEC-Q200 qualification, which represents enhanced reliability without compromising compatibility. Both are Active product status with ROHS3 compliance and MSL 1 rating.

Higher Power Rating Substitutes (0.5W / 1/2W):

CRCW080539R0FKEAHP, ERJ-UP6F39R0V, and RCS080539R0FKEA provide 0.5W power rating in the same 0805 package. These are suitable when circuit design permits higher power dissipation capability. All three include Automotive AEC-Q200 qualification and pulse withstanding features. ERJ-UP6F39R0V additionally includes anti-sulfur protection matching the original part's environmental resistance.

Alternative Packaging Format:

RC0805FR-0739RL (YAGEO) provides identical 0.125W specification with moisture-resistant features in Cut Tape & Digi-Reel® packaging instead of Tape & Reel format. This substitute is appropriate when packaging format flexibility is permitted by procurement or assembly processes.

Compliance and Status:

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and Active product status. All operate across the -55°C to 155°C temperature range with ±100ppm/°C temperature coefficient.

Frequently Asked Questions (FAQ)

Q: Can CRCW080539R0FKEAHP (0.5W) be used in place of RCS2012F390CS (0.125W)?

A: Yes. The 0.5W rating represents higher power dissipation capability in the same 0805 package footprint. If circuit design requires only 0.125W, the 0.5W part operates within specification with margin. Thermal and electrical performance remain within operating parameters.

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

A: Both are surface mount packaging formats suitable for automated assembly. Tape & Reel (TR) is continuous reel format for high-volume production. Cut Tape & Digi-Reel® provides flexibility for lower-volume or mixed-component orders. Electrical and mechanical specifications are identical.

Q: Does AEC-Q200 qualification affect compatibility?

A: No. AEC-Q200 is an automotive industry qualification standard indicating enhanced reliability testing and quality assurance. Parts with AEC-Q200 qualification are fully compatible with applications not requiring automotive qualification. The qualification represents an enhancement, not a restriction.

Q: Are height differences between substitute parts significant?

A: Height variations (0.020" to 0.028" seated maximum) are within standard PCB assembly tolerances for 0805 components. All parts meet the 0805 (2012 Metric) package specification. Height differences do not affect electrical performance or mechanical fit on standard PCB designs.

Q: Can ERJ-UP6F39R0V replace RCS2012F390CS in all applications?

A: Yes. ERJ-UP6F39R0V matches all core electrical parameters (39 Ohms, ±1%, -55°C to 155°C) and adds anti-sulfur protection identical to the original part. The 0.5W power rating provides additional margin. Automotive AEC-Q200 qualification and pulse withstanding capability represent enhancements for reliability.

Q: Is ROHS3 compliance maintained across all substitutes?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original RCS2012F390CS specification.