RC2012F5901CS 5.9kΩ ±1% 1/8W 0805 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC2012F5901CS is a thick film chip resistor manufactured by Samsung Electro-Mechanics with a resistance value of 5.9 kΩ, tolerance of ±1%, and power rating of 0.125W (1/8W) in the 0805 (2012 Metric) package. This component is moisture resistant and currently in active production status. Alternative equivalent parts are necessary when the primary part experiences supply constraints, when specific certifications (such as AEC-Q200 automotive qualification) are required for application-specific designs, or when packaging format preferences differ between procurement channels.

Key Parameters

Parameter	Value	Substitution Relevance
Resistance Value	5.9 kΩ	Critical - must match exactly
Tolerance	±1%	Critical - must match exactly
Power Rating	0.125W (1/8W)	Critical - must match exactly
Package / Case	0805 (2012 Metric)	Critical - must match exactly
Composition	Thick Film	Critical - must match exactly
Temperature Coefficient	±100ppm/°C	Critical - must match exactly
Operating Temperature Range	-55°C ~ 155°C	Critical - must match exactly
RoHS Status	ROHS3 Compliant	Important - regulatory requirement
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Important - handling and storage
Number of Terminations	2	Critical - functional requirement

Substitute Part Grouping Explanation

Substitution eligibility for the RC2012F5901CS is determined by strict electrical and mechanical parameter matching. All substitute parts must satisfy the following criteria:

Mandatory Matching Parameters:

Resistance value: 5.9 kΩ (exact match)
Tolerance: ±1% (exact match)
Power rating: 0.125W / 1/8W (exact match)
Package: 0805 (2012 Metric) (exact match)
Composition: Thick Film (exact match)
Temperature coefficient: ±100ppm/°C (exact match)
Operating temperature range: -55°C ~ 155°C (exact match)
Number of terminations: 2 (exact match)
RoHS compliance: ROHS3 Compliant (required)
MSL rating: 1 (Unlimited) (required)

Allowable Variations:

Manufacturer identity (different suppliers acceptable)
Packaging format (Cut Tape vs. Tape & Reel acceptable)
Physical height when seated (minor variations acceptable within component tolerance)
Optional certifications (AEC-Q200 automotive qualification is an enhancement, not a requirement)
Series designation (manufacturer-specific nomenclature)

All identified substitute parts meet these criteria and are electrically and mechanically interchangeable with the RC2012F5901CS.

Parameter Comparison

Parameter	RC2012F5901CS (Samsung)	CR0805-FX-5901ELF (Bourns)	ERJ-6ENF5901V (Panasonic)	RC0805FR-075K9L (YAGEO)	RMCF0805FT5K90 (Stackpole)	CRCW08055K90FKEA (Vishay Dale)	MCR10ERTF5901 (Rohm)
Resistance	5.9 kΩ	5.9 kΩ	5.9 kΩ	5.9 kΩ	5.9 kΩ	5.9 kΩ	5.9 kΩ
Tolerance	±1%	±1%	±1%	±1%	±1%	±1%	±1%
Power Rating	0.125W	0.125W	0.125W	0.125W	0.125W	0.125W	0.125W
Package	0805	0805	0805	0805	0805	0805	0805
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging Format	Cut Tape (CT)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel
Height - Seated (Max)	0.026" (0.65mm)	0.024" (0.60mm)	0.028" (0.70mm)	0.024" (0.60mm)	0.026" (0.65mm)	0.020" (0.50mm)	0.026" (0.65mm)
Product Status	Active	Active	Active	Active	Active	Active	Discontinued at DiGi Electronics
AEC-Q200 Automotive	No	No	Yes	No	Yes	Yes	No

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents):

The following parts are direct electrical and mechanical equivalents with active production status:

CR0805-FX-5901ELF (Bourns Inc.): Moisture resistant thick film composition. Tape & Reel packaging. Highest inventory availability (24,994 pcs). Suitable for general industrial applications.
RC0805FR-075K9L (YAGEO): Moisture resistant thick film composition. Tape & Reel packaging. High inventory availability (63,051 pcs). Established supply chain.

Automotive-Qualified Substitutes (Enhanced Specification):

For applications requiring AEC-Q200 automotive qualification:

ERJ-6ENF5901V (Panasonic Electronic Components): AEC-Q200 qualified. Tape & Reel packaging. Highest inventory availability (109,371 pcs). Recommended for automotive and mission-critical applications.
RMCF0805FT5K90 (Stackpole Electronics Inc): AEC-Q200 qualified. Tape & Reel packaging. Moderate inventory availability (17,009 pcs). Suitable for automotive applications.
CRCW08055K90FKEA (Vishay Dale): AEC-Q200 qualified. Tape & Reel packaging. Moderate inventory availability (31,610 pcs). Lowest seated height (0.50mm) for space-constrained designs.

Discontinued Part:

MCR10ERTF5901 (Rohm Semiconductor): Discontinued at DiGi Electronics. Not recommended for new designs. Existing inventory (1,321 pcs) available only through alternative channels.

Selection Criteria:

For standard industrial applications with no automotive requirements, select CR0805-FX-5901ELF or RC0805FR-075K9L based on packaging preference and supplier availability.
For automotive applications or designs requiring enhanced reliability certification, select ERJ-6ENF5901V, RMCF0805FT5K90, or CRCW08055K90FKEA.
For space-constrained PCB layouts, CRCW08055K90FKEA offers the minimum seated height (0.50mm).
Avoid MCR10ERTF5901 for new designs due to discontinued status.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RC2012F5901CS with any of these parts without circuit redesign?

A: Yes. All listed substitute parts are electrically and mechanically interchangeable. They share identical resistance values (5.9 kΩ), tolerance (±1%), power rating (0.125W), package (0805), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). No circuit redesign is required.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape packaging is supplied in individual strips suitable for manual assembly or small-volume production. Tape & Reel packaging is supplied on continuous reels suitable for automated pick-and-place assembly equipment. Both formats contain identical components; the difference is in handling and assembly methodology.

Q: Why do some substitute parts have AEC-Q200 certification while the original RC2012F5901CS does not?

A: AEC-Q200 is an automotive industry qualification standard that certifies component reliability under automotive operating conditions. The RC2012F5901CS meets general industrial specifications. AEC-Q200 certified alternatives (ERJ-6ENF5901V, RMCF0805FT5K90, CRCW08055K90FKEA) are suitable for automotive applications and provide enhanced reliability assurance. Non-automotive applications do not require this certification.

Q: Are there differences in physical dimensions that could affect PCB layout?

A: All parts use the 0805 (2012 Metric) package with identical length (0.079") and width (0.049"). Seated height varies slightly: RC2012F5901CS (0.65mm), CR0805-FX-5901ELF (0.60mm), ERJ-6ENF5901V (0.70mm), RC0805FR-075K9L (0.60mm), RMCF0805FT5K90 (0.65mm), CRCW08055K90FKEA (0.50mm), and MCR10ERTF5901 (0.65mm). These variations are within standard component tolerances and do not affect PCB design for standard applications. For space-constrained designs, CRCW08055K90FKEA is optimal.

Q: What does MSL 1 (Unlimited) mean for handling and storage?

A: MSL (Moisture Sensitivity Level) 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. These components do not require dry-pack storage or baking before reflow soldering, simplifying procurement and assembly logistics.

Q: Is the RC2012F5901CS still in production?

A: Yes, the RC2012F5901CS is in active production status. However, all listed substitute parts are also in active production (except MCR10ERTF5901, which is discontinued), providing multiple sourcing options for supply chain resilience.

Q: Can I use CRCW08055K90FKEA in a design originally specified for RC2012F5901CS?

A: Yes. CRCW08055K90FKEA is a direct electrical and mechanical equivalent. The only difference is the lower seated height (0.50mm vs. 0.65mm), which is beneficial for space-constrained designs and does not create compatibility issues.

Q: Why is MCR10ERTF5901 listed if it is discontinued?

A: MCR10ERTF5901 is included for reference purposes for engineers working with existing designs or legacy systems that specify this part. For new designs, select from the active production alternatives listed above.

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