RCS2012F3090CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F3090CS is a 309 Ohms ±1% 0.125W (1/8W) chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package. This thick film resistor features anti-sulfur and moisture-resistant properties, with an operating temperature range of -55°C to 155°C. The part is Active in product status and RoHS3 compliant. 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 functional degradation.

Substiute Parts

RCS2012F3090CS

Samsung Electro-MechanicsIn Stock: 1233RCS2012F3090CS Datasheet

Current PartRFQ

CRCW0805309RFKEA

Vishay DaleIn Stock: 7262CRCW0805309RFKEA Datasheet

SimilarRFQ

ERJ-6ENF3090V

Panasonic Electronic ComponentsIn Stock: 57700ERJ-6ENF3090V Datasheet

SimilarRFQ

RC0805FR-07309RL

YAGEOIn Stock: 235005RC0805FR-07309RL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F3090CS is determined by strict alignment of the following parameters:

Critical Electrical Parameters:

• Resistance value: 309 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 to 155°C (exact match or wider range acceptable)

Critical Mechanical Parameters:

• Package / Case: 0805 (2012 Metric) (exact match required)
• Physical dimensions: 0.079" L x 0.049" W / 2.00mm x 1.25mm (exact match required)
• Number of terminations: 2 (exact match required)

Compliance Parameters:

• RoHS3 Compliant (required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)
• Product Status: Active (required)

All three identified substitute parts meet these criteria. Variations in height (seated maximum), packaging format (Tape & Reel vs. Cut Tape), and optional automotive certifications do not disqualify substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are functionally equivalent to the RCS2012F3090CS based on electrical and mechanical specifications. Selection among these alternatives should be based on the following factors:

CRCW0805309RFKEA (Vishay Dale): This substitute includes automotive AEC-Q200 certification, which provides additional qualification for automotive applications. The seated height of 0.020" (0.50mm) is the lowest among all options, suitable for space-constrained PCB layouts. Packaging is Tape & Reel (TR).

ERJ-6ENF3090V (Panasonic Electronic Components): This substitute also includes automotive AEC-Q200 certification. Packaging is available in Cut Tape (CT) & Digi-Reel® format, offering flexibility for both automated and manual assembly processes. The seated height of 0.028" (0.70mm) is the highest among all options. Inventory availability is the highest at 57,654 pieces.

RC0805FR-07309RL (YAGEO): This substitute features moisture-resistant properties matching the original part. Packaging is Tape & Reel (TR). The seated height of 0.024" (0.60mm) provides a middle-ground option. Inventory availability is substantial at 234,916 pieces.

All parts maintain RoHS3 compliance, MSL Level 1 (Unlimited), and Active product status. Selection should prioritize application requirements, supply chain availability, and packaging format compatibility with assembly equipment.

Frequently Asked Questions (FAQ)

Q: Can CRCW0805309RFKEA replace RCS2012F3090CS in any application?

A: Yes. CRCW0805309RFKEA meets all critical electrical and mechanical parameters: 309 Ohms ±1%, 0.125W power rating, 0805 package, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, and RoHS3 compliance. The automotive AEC-Q200 certification is an additional qualification that does not prevent use in non-automotive applications.

Q: What is the difference between the packaging formats offered by these substitutes?

A: RCS2012F3090CS, CRCW0805309RFKEA, and RC0805FR-07309RL are supplied in Tape & Reel (TR) format, suitable for automated pick-and-place assembly. ERJ-6ENF3090V is supplied in Cut Tape (CT) & Digi-Reel® format, which accommodates both automated and manual assembly processes. Selection depends on assembly equipment compatibility.

Q: Are there any height restrictions when substituting these parts?

A: Height variations exist among substitutes: RCS2012F3090CS (0.026"), CRCW0805309RFKEA (0.020"), ERJ-6ENF3090V (0.028"), and RC0805FR-07309RL (0.024"). All heights are within typical PCB clearance specifications for 0805 components. Verify clearance requirements for specific PCB designs, particularly in high-density layouts or applications with low-profile component stacking.

Q: Do the automotive certifications on substitute parts affect their use in consumer applications?

A: No. Automotive AEC-Q200 certification on CRCW0805309RFKEA and ERJ-6ENF3090V indicates additional qualification testing and reliability standards. These certifications do not restrict use in consumer, industrial, or other non-automotive applications. They represent a superset of standard reliability requirements.

Q: Is inventory availability a factor in substitution eligibility?

A: Inventory availability does not affect electrical or mechanical substitution eligibility. However, it is a practical consideration for procurement. RC0805FR-07309RL (234,916 pieces) and ERJ-6ENF3090V (57,654 pieces) offer higher availability than CRCW0805309RFKEA (7,214 pieces) or the original RCS2012F3090CS (1,168 pieces).

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

A: Yes. All substitute parts share identical electrical specifications, package dimensions (0.079" L x 0.049" W), and two-terminal configuration. PCB footprints designed for 0805 (2012 Metric) components accommodate all listed parts. Height variations are negligible for standard PCB assembly processes.