RCS2012F4750CS Equivalent & Substitute Parts

Part Overview

The RCS2012F4750CS is a 475 Ohm ±1% 0.125W (1/8W) thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is supplied in Tape & Reel (TR) packaging with anti-sulfur and moisture-resistant properties. The part maintains Active product status with 985 units currently in stock. Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical compatibility (package size, termination count), and environmental operating parameters. Alternative sources become necessary for supply chain continuity, design flexibility across manufacturing locations, or when specific certifications (such as AEC-Q200 automotive qualification) are required.

Key Parameters

Parameter	Value
Resistance	475 Ohms
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
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F4750CS is determined by strict equivalence across the following critical parameters:

Electrical Equivalence: Resistance value (475 Ohms), tolerance (±1%), and power rating (0.125W / 1/8W) must match exactly. Temperature coefficient (±100ppm/°C) and operating temperature range (-55°C ~ 155°C) must be identical or superior.

Mechanical Compatibility: Package designation (0805 / 2012 Metric) and number of terminations (2) must be identical. Physical dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm) must match. Height variations within seated maximum specifications are acceptable.

Environmental & Compliance: All substitute parts must maintain ROHS3 compliance and MSL 1 rating. Operating temperature range must span -55°C to 155°C minimum.

Packaging Format: The main part is supplied in Tape & Reel (TR). Substitutes in Cut Tape (CT) or alternative packaging formats are functionally equivalent but differ in delivery method.

Optional Certifications: Automotive AEC-Q200 qualification and pulse-withstanding features are additional certifications that do not disqualify substitution but indicate enhanced reliability for specific applications.

Substitutes are grouped into two categories: Direct Equivalents (matching all core parameters including power rating and packaging) and Functional Equivalents (matching electrical and mechanical specifications with alternative power ratings or certifications).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp (°C)	Height Max (mm)	Packaging	RoHS	AEC-Q200
RCS2012F4750CS	Samsung Electro-Mechanics	475Ω	±1%	0.125	0805	±100ppm/°C	-55~155	0.66	TR	ROHS3	No
RC2012F4750CS	Samsung Electro-Mechanics	475Ω	±1%	0.125	0805	±100ppm/°C	-55~155	0.65	CT	ROHS3	No
AC0805FR-07475RL	YAGEO	475Ω	±1%	0.125	0805	±100ppm/°C	-55~155	0.60	TR	ROHS3	Yes
CRCW0805475RFKEA	Vishay Dale	475Ω	±1%	0.125	0805	±100ppm/°C	-55~155	0.50	TR	ROHS3	Yes
CRCW0805475RFKEAHP	Vishay Dale	475Ω	±1%	0.5	0805	±100ppm/°C	-55~155	0.50	TR	ROHS3	Yes
CRCW0805475RFKTA	Vishay Dale	475Ω	±1%	0.125	0805	±100ppm/°C	-55~155	0.50	TR	Non-compliant	Yes
ERJ-6ENF4750V	Panasonic Electronic Components	475Ω	±1%	0.125	0805	±100ppm/°C	-55~155	0.70	TR	ROHS3	Yes
RC0805FR-07475RL	YAGEO	475Ω	±1%	0.125	0805	±100ppm/°C	-55~155	0.60	CT & Digi-Reel	ROHS3	No
RCS0805475RFKEA	Vishay Dale	475Ω	±1%	0.5	0805	±100ppm/°C	-55~155	0.50	TR	ROHS3	Yes
RMCF0805FT475R	Stackpole Electronics Inc	475Ω	±1%	0.125	0805	±100ppm/°C	-55~155	0.65	TR	ROHS3	Yes

Engineering Selection Recommendations

Direct Electrical & Mechanical Equivalents (Primary Substitutes):

The following parts are fully equivalent to RCS2012F4750CS across all critical electrical and mechanical parameters:

RC2012F4750CS (Samsung Electro-Mechanics) differs only in packaging format (Cut Tape vs. Tape & Reel) and is suitable for applications where packaging method does not impose constraints.

RMCF0805FT475R (Stackpole Electronics Inc) provides direct equivalence with ROHS3 compliance and AEC-Q200 automotive qualification. This part is recommended for designs requiring automotive-grade reliability with high inventory availability (454,278 units).

Automotive-Qualified Substitutes (Enhanced Reliability):

AC0805FR-07475RL (YAGEO), CRCW0805475RFKEA (Vishay Dale), and ERJ-6ENF4750V (Panasonic Electronic Components) all meet or exceed the RCS2012F4750CS specifications with AEC-Q200 automotive qualification. These parts are suitable for applications requiring enhanced reliability margins or automotive supply chain compliance. All maintain ROHS3 compliance and identical electrical parameters.

Higher Power Rating Alternatives (Functional Substitutes):

CRCW0805475RFKEAHP (Vishay Dale) and RCS0805475RFKEA (Vishay Dale) provide 0.5W (1/2W) power rating in the same 0805 package with pulse-withstanding capability. These are suitable for applications where thermal margin or transient pulse handling is required, though they are not direct replacements for 0.125W-rated designs.

Non-Compliant Parts (Not Recommended):

CRCW0805475RFKTA (Vishay Dale) is RoHS non-compliant and REACH-affected. This part should not be selected for new designs or applications subject to environmental compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can RC2012F4750CS replace RCS2012F4750CS directly?

A: Yes. Both parts are manufactured by Samsung Electro-Mechanics with identical electrical specifications (475Ω ±1%, 0.125W, ±100ppm/°C, -55°C to 155°C). The only difference is packaging format: RC2012F4750CS is supplied in Cut Tape (CT) while RCS2012F4750CS is supplied in Tape & Reel (TR). Functional compatibility is complete; packaging logistics may differ.

Q: What is the difference between 0.125W and 0.5W rated parts?

A: Power rating indicates the maximum continuous power dissipation the resistor can handle without exceeding temperature limits. A 0.125W part is suitable for applications dissipating up to 0.125W; a 0.5W part can handle up to 0.5W. The 0.5W variants (CRCW0805475RFKEAHP, RCS0805475RFKEA) are physically compatible but represent higher thermal capacity. Substituting a 0.5W part into a 0.125W design is acceptable (over-specification); the reverse substitution is not acceptable.

Q: Are AEC-Q200 qualified parts necessary?

A: AEC-Q200 qualification is required only for automotive applications or designs subject to automotive supply chain standards. For general industrial or consumer applications, non-qualified parts (RCS2012F4750CS, RC2012F4750CS, RC0805FR-07475RL) are functionally equivalent. AEC-Q200 qualified alternatives (RMCF0805FT475R, CRCW0805475RFKEA, AC0805FR-07475RL, ERJ-6ENF4750V) provide enhanced reliability screening and are recommended for mission-critical applications.

Q: Can I use Cut Tape (CT) packaging instead of Tape & Reel (TR)?

A: Yes. Cut Tape and Tape & Reel packaging contain identical components; the difference is in delivery format and handling. Cut Tape is suitable for lower-volume applications or manual assembly; Tape & Reel is optimized for automated pick-and-place assembly. Electrical and mechanical performance is identical.

Q: What does MSL 1 (Unlimited) mean?

A: Moisture Sensitivity Level (MSL) 1 indicates the component has unlimited shelf life and requires no special moisture-control storage or handling. All listed substitutes maintain MSL 1 rating, eliminating moisture-related compatibility concerns.

Q: Are height differences significant?

A: Height variations (0.50mm to 0.70mm seated maximum) are within acceptable tolerances for 0805 package specifications. All listed parts are mechanically compatible with standard 0805 PCB footprints. Height differences do not affect electrical performance or board-level assembly compatibility.

Q: What does ROHS3 compliance mean?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates the component meets European environmental regulations restricting lead, cadmium, mercury, and other hazardous substances. All recommended substitutes maintain ROHS3 compliance except CRCW0805475RFKTA, which should not be selected for new designs.

Q: Can CRCW0805475RFKTA be used as a substitute?

A: CRCW0805475RFKTA is electrically and mechanically equivalent but is RoHS non-compliant and REACH-affected. This part is not recommended for new designs or applications subject to environmental compliance requirements. Use CRCW0805475RFKEA (RoHS-compliant equivalent) instead.

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