RCS2012F26R1CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F26R1CS is a 26.1 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format with 0.125W power rating. This component is classified as Active product status and is designed for general-purpose applications requiring 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 functional degradation.

Substiute Parts

RCS2012F26R1CS

Samsung Electro-MechanicsIn Stock: 951RCS2012F26R1CS Datasheet

Current PartRFQ

CRCW080526R1FKEA

Vishay DaleIn Stock: 14893CRCW080526R1FKEA Datasheet

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ERJ-6ENF26R1V

Panasonic Electronic ComponentsIn Stock: 79241ERJ-6ENF26R1V Datasheet

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RC0805FR-0726R1L

YAGEOIn Stock: 158140RC0805FR-0726R1L Datasheet

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RMCF0805FT26R1

Stackpole Electronics IncIn Stock: 934RMCF0805FT26R1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F26R1CS is determined by strict alignment of the following critical parameters:

Electrical Specifications: Resistance value (26.1 Ohms), tolerance (±1%), and power rating (0.125W) must be identical. Temperature coefficient (±100ppm/°C) and operating temperature range (-55°C ~ 155°C) establish thermal performance boundaries.

Mechanical Compatibility: Package designation (0805 / 2012 Metric), physical dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm), and number of terminations (2) ensure PCB footprint compatibility and assembly process alignment.

Regulatory Compliance: RoHS3 compliance and MSL rating (1 - Unlimited) are mandatory for substitution. REACH status and ECCN classification must match or exceed the original specification.

Composition & Construction: Thick film construction is required. Feature variations (anti-sulfur, moisture-resistant, automotive AEC-Q200) do not disqualify substitution but indicate enhanced capability levels.

All identified substitute parts meet these criteria without exception.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are qualified for direct replacement of the RCS2012F26R1CS based on identical electrical and mechanical specifications. Selection among substitutes should be based on the following factors:

Automotive Applications: CRCW080526R1FKEA (Vishay Dale), ERJ-6ENF26R1V (Panasonic), and RMCF0805FT26R1 (Stackpole) carry AEC-Q200 automotive qualification. These parts are suitable for automotive-grade circuit designs where enhanced reliability standards are required.

General Industrial Applications: RC0805FR-0726R1L (YAGEO) provides moisture-resistant construction without automotive qualification, suitable for standard industrial and consumer electronics applications.

Inventory Availability: ERJ-6ENF26R1V (Panasonic) offers the highest inventory level at 79,225 pieces. RC0805FR-0726R1L (YAGEO) provides 158,058 pieces. CRCW080526R1FKEA (Vishay Dale) stocks 14,860 pieces. RMCF0805FT26R1 (Stackpole) has limited availability at 844 pieces.

Packaging Format: All substitute parts are supplied in Tape & Reel (TR) format, matching the original RCS2012F26R1CS packaging specification.

Compliance Certification: All substitute parts maintain ROHS3 compliance, REACH unaffected status, and EAR99 ECCN classification, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can CRCW080526R1FKEA replace RCS2012F26R1CS in non-automotive applications?

A: Yes. The AEC-Q200 automotive qualification of CRCW080526R1FKEA does not restrict its use in general-purpose applications. All electrical and mechanical parameters are identical to the original part.

Q: What is the significance of the ±100ppm/°C temperature coefficient across all parts?

A: The temperature coefficient defines the resistance change per degree Celsius within the operating temperature range (-55°C ~ 155°C). All substitute parts maintain identical thermal stability characteristics, ensuring equivalent circuit performance across temperature extremes.

Q: Are there dimensional differences between substitute parts that affect PCB assembly?

A: Physical dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm) are identical across all parts. Height-seated measurements vary slightly (0.020" to 0.028" / 0.50mm to 0.70mm), but these variations remain within standard PCB assembly tolerances and do not affect footprint compatibility.

Q: Does MSL rating 1 (Unlimited) apply uniformly to all substitute parts?

A: Yes. All parts carry MSL 1 rating, indicating unlimited shelf life without moisture bake-out requirements. This specification is identical across the original and all substitute components.

Q: Which substitute part is recommended for high-volume production?

A: RC0805FR-0726R1L (YAGEO) and ERJ-6ENF26R1V (Panasonic) offer the highest inventory levels, supporting high-volume production schedules without supply constraints.

Q: Can substitute parts be mixed within a single PCB assembly?

A: Yes. All substitute parts meet identical electrical specifications, tolerance, and package requirements. Mixed sourcing does not introduce functional or reliability risks.

Q: What is the difference between anti-sulfur and moisture-resistant features?

A: Anti-sulfur protection prevents corrosion from sulfur-containing environmental contaminants. Moisture-resistant construction protects against humidity ingress. Both features enhance component longevity but do not affect electrical substitution eligibility.