RC2012F6490CS Equivalent & Substitute Parts

Part Overview

The RC2012F6490CS is a 649 Ohm ±1% thick film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. Manufactured by Samsung Electro-Mechanics, this component is actively produced and RoHS3 compliant with moisture resistant characteristics. Alternative equivalent parts are necessary for supply chain flexibility, design redundancy, and regional availability across multiple manufacturers including Bourns, Panasonic, YAGEO, Stackpole, and Vishay Dale.

Key Parameters

Parameter	Specification
Resistance Value	649 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 to 155°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	RoHS3 Compliant
Packaging	Tape & Reel (TR)

Substitute Part Grouping Explanation

Substitution eligibility for the RC2012F6490CS is determined by strict equivalence across the following critical parameters:

Resistance value: 649 Ohms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.125W / 1/8W (exact match required)
Package: 0805 (2012 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature coefficient: ±100ppm/°C (exact match required)
Operating temperature range: -55°C to 155°C (exact match required)
MSL rating: 1 (Unlimited) (exact match required)
RoHS3 compliance (required for regulatory equivalence)

All substitute parts listed below meet these criteria. Additional features such as automotive AEC-Q200 qualification represent enhanced capability and do not disqualify a part from substitution. Physical dimensions (height, length, width) remain within acceptable PCB assembly tolerances across all listed alternatives.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	MSL	RoHS3	Features
RC2012F6490CS	Samsung Electro-Mechanics	649 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	1	Yes	Moisture Resistant
CR0805-FX-6490ELF	Bourns Inc.	649 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	1	Yes	Moisture Resistant
ERJ-6ENF6490V	Panasonic Electronic Components	649 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	1	Yes	Automotive AEC-Q200
RC0805FR-07649RL	YAGEO	649 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	1	Yes	Moisture Resistant
RMCF0805FT649R	Stackpole Electronics Inc	649 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	1	Yes	Automotive AEC-Q200
AC0805FR-07649RL	YAGEO	649 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	1	Yes	Automotive AEC-Q200, Moisture Resistant
CRCW0805649RFKEA	Vishay Dale	649 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	1	Yes	Automotive AEC-Q200

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the RC2012F6490CS and maintain identical electrical and thermal specifications. Selection among these alternatives should be based on:

Supply Chain Availability: Inventory levels vary across manufacturers. CR0805-FX-6490ELF (Bourns) offers 54,439 units, RC0805FR-07649RL (YAGEO) provides 51,306 units, and ERJ-6ENF6490V (Panasonic) stocks 30,095 units, providing robust supply options.

Automotive Applications: For designs requiring automotive-grade components, ERJ-6ENF6490V (Panasonic), RMCF0805FT649R (Stackpole), AC0805FR-07649RL (YAGEO), and CRCW0805649RFKEA (Vishay Dale) carry AEC-Q200 qualification. AC0805FR-07649RL combines both automotive certification and moisture resistance.

Standard Industrial Applications: CR0805-FX-6490ELF, RC0805FR-07649RL, and the original RC2012F6490CS are suitable for non-automotive applications requiring moisture resistance.

Physical Dimensions: All parts fit within standard 0805 PCB assembly processes. Height variations (0.020" to 0.028") remain within typical reflow and component placement tolerances.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC2012F6490CS with any of these parts without circuit redesign?

A: Yes. All listed parts are direct electrical equivalents with identical resistance, tolerance, power rating, temperature coefficient, and operating range. No circuit modifications are required.

Q: What is the difference between moisture-resistant and automotive-qualified versions?

A: Moisture-resistant versions (CR0805-FX-6490ELF, RC0805FR-07649RL, RC2012F6490CS) are rated MSL 1 for general industrial use. Automotive AEC-Q200 versions (ERJ-6ENF6490V, RMCF0805FT649R, AC0805FR-07649RL, CRCW0805649RFKEA) meet additional qualification standards for automotive applications. Both meet RoHS3 compliance.

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

A: Physical dimensions vary slightly (height 0.020" to 0.028"), but all parts use the standard 0805 (2012 Metric) footprint. These variations are within PCB assembly process tolerances and do not require layout modifications.

Q: Which substitute offers the best inventory availability?

A: CR0805-FX-6490ELF (Bourns) currently stocks 54,439 units, providing the highest available inventory among all listed alternatives.

Q: Can I use an automotive-qualified part in a non-automotive design?

A: Yes. Automotive-qualified parts exceed standard industrial requirements and are fully compatible with non-automotive applications. They represent enhanced reliability with no compatibility issues.

Q: Are all parts RoHS3 compliant?

A: Yes. All listed substitute parts and the main part RC2012F6490CS are RoHS3 compliant and REACH unaffected.

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