RCS2012F9092CS Equivalent & Substitute Parts

Part Overview

The RCS2012F9092CS is a 90.9 kOhms ±1% 0.125W (1/8W) thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). The part features anti-sulfur and moisture-resistant construction, operating across -55°C to 155°C temperature range with ±100ppm/°C temperature coefficient.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical compatibility (package size and form factor), and environmental operating parameters. Alternative sources provide equivalent functional performance for direct circuit board replacement applications.

Key Parameters

Parameter	Value
Resistance	90.9 kOhms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts are classified into two functional groups based on power rating compatibility with the main part specification:

Group 1: Direct Electrical Equivalents (0.125W / 1/8W Power Rating)

These parts maintain identical power rating to RCS2012F9092CS and are suitable for direct one-to-one replacement in circuits designed for 1/8W dissipation:

CRCW080590K9FKEA (Vishay Dale)
ERJ-6ENF9092V (Panasonic Electronic Components)
RC0805FR-0790K9L (YAGEO)
RMCF0805FT90K9 (Stackpole Electronics Inc)

Group 2: Higher Power Rating Alternatives (0.5W / 1/2W Power Rating)

These parts provide increased power dissipation capability while maintaining all other electrical and mechanical parameters. They are suitable for applications requiring enhanced thermal performance:

CRCW080590K9FKEAHP (Vishay Dale)
RCS080590K9FKEA (Vishay Dale)

Substitution Criteria (Mandatory Matching Parameters):

Resistance value: 90.9 kOhms
Tolerance: ±1%
Package: 0805 (2012 Metric)
Composition: Thick Film
Temperature Coefficient: ±100ppm/°C
Operating Temperature: -55°C ~ 155°C
Terminations: 2
RoHS Compliance: ROHS3
MSL Rating: 1 (Unlimited)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Composition	Temp Coeff	Operating Temp	Height Max	RoHS Status	MSL
RCS2012F9092CS	Samsung Electro-Mechanics	90.9 kOhms	±1%	0.125W	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.66mm	ROHS3	1
CRCW080590K9FKEA	Vishay Dale	90.9 kOhms	±1%	0.125W	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.50mm	ROHS3	1
CRCW080590K9FKEAHP	Vishay Dale	90.9 kOhms	±1%	0.5W	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.50mm	ROHS3	1
ERJ-6ENF9092V	Panasonic Electronic Components	90.9 kOhms	±1%	0.125W	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.70mm	ROHS3	1
RC0805FR-0790K9L	YAGEO	90.9 kOhms	±1%	0.125W	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.60mm	ROHS3	1
RCS080590K9FKEA	Vishay Dale	90.9 kOhms	±1%	0.5W	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.50mm	ROHS3	1
RMCF0805FT90K9	Stackpole Electronics Inc	90.9 kOhms	±1%	0.125W	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.65mm	ROHS3	1

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original RCS2012F9092CS component.

For Direct Replacement (Equivalent Power Rating):

CRCW080590K9FKEA, ERJ-6ENF9092V, RC0805FR-0790K9L, and RMCF0805FT90K9 provide electrical and mechanical equivalence to the main part. These options are suitable for applications where the 0.125W power specification is the design requirement. All four alternatives are available in high inventory quantities and maintain identical operating temperature range and tolerance specifications.

For Enhanced Thermal Performance:

CRCW080590K9FKEAHP and RCS080590K9FKEA offer 0.5W power rating while preserving all other electrical parameters. These higher-power variants are applicable in circuits where increased power dissipation margin is beneficial, provided the circuit design accommodates the alternative power rating.

Compliance Considerations:

Substitute parts designated with AEC-Q200 automotive qualification (CRCW080590K9FKEA, CRCW080590K9FKEAHP, ERJ-6ENF9092V, RCS080590K9FKEA, RMCF0805FT90K9) meet automotive-grade reliability standards. The RCS2012F9092CS and RC0805FR-0790K9L do not carry explicit AEC-Q200 designation but maintain equivalent environmental and reliability specifications through ROHS3 compliance and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can CRCW080590K9FKEAHP (0.5W) be used as a direct replacement for RCS2012F9092CS (0.125W)?

A: Yes, from an electrical and mechanical standpoint. The 0.5W part maintains identical resistance, tolerance, package dimensions, and operating temperature range. The higher power rating provides additional thermal margin. However, circuit design must accommodate the alternative power specification if thermal performance is a design constraint.

Q: What is the significance of the 0805 (2012 Metric) package designation?

A: The 0805 package specifies physical dimensions of 0.079" L × 0.049" W (2.00mm × 1.25mm). All substitute parts use this identical package, ensuring mechanical compatibility with PCB footprints designed for the RCS2012F9092CS. Height variations (0.50mm to 0.70mm) are within standard assembly tolerances and do not affect placement or soldering.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status, matching the environmental compliance of the main part. All parts also maintain MSL 1 (Unlimited) moisture sensitivity level.

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

A: Tape & Reel packaging is supplied on continuous reels for automated assembly processes. Cut Tape & Digi-Reel packaging (ERJ-6ENF9092V) provides components on cut tape segments, suitable for manual or lower-volume assembly. Both packaging formats contain identical components; the difference is in supply format and handling method.

Q: Do all substitute parts have the same temperature coefficient?

A: Yes. All substitute parts maintain ±100ppm/°C temperature coefficient, identical to the RCS2012F9092CS. This ensures equivalent frequency stability and temperature-dependent resistance drift across the -55°C to 155°C operating range.

Q: Which substitute part has the lowest profile height?

A: CRCW080590K9FKEA and RCS080590K9FKEA both specify 0.50mm maximum seated height, compared to 0.66mm for the main part. This lower profile may be advantageous in space-constrained applications, though all heights remain within standard 0805 package specifications.

Q: Can I substitute RC0805FR-0790K9L without AEC-Q200 certification in automotive applications?

A: RC0805FR-0790K9L does not carry explicit AEC-Q200 designation. For automotive applications requiring AEC-Q200 qualification, select from CRCW080590K9FKEA, CRCW080590K9FKEAHP, ERJ-6ENF9092V, RCS080590K9FKEA, or RMCF0805FT90K9.

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