RCS2012F6490CS Equivalent & Substitute Parts

Part Overview

The RCS2012F6490CS is a 649 Ohm ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with anti-sulfur and moisture-resistant characteristics. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit designs without performance degradation.

Substiute Parts

RCS2012F6490CS

Samsung Electro-MechanicsIn Stock: 1077RCS2012F6490CS Datasheet

Current PartRFQ

AC0805FR-07649RL

YAGEOIn Stock: 6107AC0805FR-07649RL Datasheet

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CRCW0805649RFKEA

Vishay DaleIn Stock: 17199CRCW0805649RFKEA Datasheet

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ERJ-6ENF6490V

Panasonic Electronic ComponentsIn Stock: 30132ERJ-6ENF6490V Datasheet

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RC0805FR-07649RL

YAGEOIn Stock: 51349RC0805FR-07649RL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F6490CS is determined by strict equivalence across the following parameters:

Electrical Specifications:

• Resistance value: 649 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.125W / 1/8W (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)

Mechanical Specifications:

• Package type: 0805 (2012 Metric) (exact match required)
• Number of terminations: 2 (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Environmental:

• RoHS3 Compliant (required)
• MSL Level 1 (Unlimited) (required)
• REACH Unaffected status (required)

All four substitute parts listed meet these criteria. Variations in physical height dimensions and specific feature sets (such as automotive AEC-Q200 certification) do not disqualify substitution, as these represent enhanced or alternative specifications rather than deviations from core electrical and mechanical requirements.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are qualified equivalents to the RCS2012F6490CS based on electrical, mechanical, and compliance alignment. Selection among these alternatives is determined by application-specific requirements and supply chain considerations:

AC0805FR-07649RL (YAGEO): Includes automotive AEC-Q200 certification with 6002 units in stock. Suitable for applications requiring automotive-grade reliability.

CRCW0805649RFKEA (Vishay Dale): Includes automotive AEC-Q200 certification with highest inventory availability at 17116 units. Lowest seated height at 0.020" (0.50mm) accommodates space-constrained PCB layouts.

ERJ-6ENF6490V (Panasonic): Includes automotive AEC-Q200 certification with largest inventory at 30095 units. Highest seated height at 0.028" (0.70mm).

RC0805FR-07649RL (YAGEO): Non-automotive variant with 51306 units in stock. Suitable for non-automotive applications requiring moisture-resistant thick film composition.

All parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH Unaffected status. Physical height variations remain within acceptable PCB assembly tolerances for 0805 package footprints.

Frequently Asked Questions (FAQ)

Q: Can AC0805FR-07649RL replace RCS2012F6490CS in non-automotive applications?

A: Yes. The automotive AEC-Q200 certification of AC0805FR-07649RL represents an enhanced specification. All core electrical parameters (649 Ohms ±1%, 0.125W, ±100ppm/°C, -55°C ~ 155°C) and mechanical specifications (0805 package, 2 terminations) are identical to RCS2012F6490CS.

Q: What is the significance of the height differences among substitute parts?

A: Seated height variations (0.020" to 0.028") reflect manufacturing tolerances within the 0805 package specification. These differences are acceptable for standard PCB assembly processes. Applications with extreme height constraints should specify the lowest-profile option (CRCW0805649RFKEA at 0.020").

Q: Are all substitute parts suitable for high-temperature applications?

A: Yes. All substitute parts and the original RCS2012F6490CS share identical operating temperature range of -55°C ~ 155°C and temperature coefficient of ±100ppm/°C.

Q: What is the difference between automotive-rated and non-automotive variants?

A: AC0805FR-07649RL, CRCW0805649RFKEA, and ERJ-6ENF6490V include AEC-Q200 automotive certification. RC0805FR-07649RL does not carry this certification. All variants meet identical electrical and mechanical specifications. Selection depends on application requirements and supply availability.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes, within standard PCB assembly tolerances. All parts conform to 0805 (2012 Metric) package dimensions and footprint specifications. Height variations do not prevent interchangeable placement on standard PCB designs.

Q: What compliance certifications apply to all substitute parts?

A: All parts are ROHS3 Compliant, MSL Level 1 (Unlimited), and REACH Unaffected. These certifications ensure environmental and regulatory compliance across all substitute options.