RCS2012F4321CS Equivalent & Substitute Parts

Part Overview

The RCS2012F4321CS is a 4.32 kOhms ±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 properties. The part is ROHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity rating.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit applications without design modification.

Substiute Parts

RCS2012F4321CS

Samsung Electro-MechanicsIn Stock: 1117RCS2012F4321CS Datasheet

Current PartRFQ

CRCW08054K32FKEA

Vishay DaleIn Stock: 36796CRCW08054K32FKEA Datasheet

SimilarRFQ

ERJ-6ENF4321V

Panasonic Electronic ComponentsIn Stock: 119727ERJ-6ENF4321V Datasheet

SimilarRFQ

RC0805FR-074K32L

YAGEOIn Stock: 3162RC0805FR-074K32L Datasheet

SimilarRFQ

RMCF0805FT4K32

Stackpole Electronics IncIn Stock: 70083RMCF0805FT4K32 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F4321CS is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Resistance value: 4.32 kOhms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Specifications:

• Package type: 0805 (2012 Metric)
• Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)
• Number of terminations: 2

Compliance & Environmental:

• RoHS3 compliance
• MSL 1 (Unlimited) rating
• REACH Unaffected status

All identified substitute parts meet these criteria. Variations in height (seated maximum) and specific feature sets (anti-sulfur vs. automotive AEC-Q200 qualification) do not affect functional substitution within the specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts are functionally equivalent to the RCS2012F4321CS based on electrical and mechanical parameter alignment. Selection among these alternatives is determined by application-specific requirements and availability:

CRCW08054K32FKEA (Vishay Dale): Automotive AEC-Q200 qualified. Suitable for automotive and high-reliability applications. Lowest seated height (0.020").

ERJ-6ENF4321V (Panasonic Electronic Components): Automotive AEC-Q200 qualified. Highest inventory availability (119,708 pcs). Highest seated height (0.028").

RC0805FR-074K32L (YAGEO): Moisture resistant thick film composition. Mid-range seated height (0.024"). Lower inventory availability (3,100 pcs).

RMCF0805FT4K32 (Stackpole Electronics Inc): Automotive AEC-Q200 qualified. Seated height (0.026") matches original specification. High inventory availability (70,044 pcs).

All parts carry ROHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) rating, ensuring regulatory and environmental compatibility with the original component.

Frequently Asked Questions (FAQ)

Q: Can CRCW08054K32FKEA replace RCS2012F4321CS in any application?

A: Yes. Both components share identical electrical specifications (4.32 kOhms ±1%, 0.125W), identical package dimensions (0805 / 2012 Metric), and equivalent compliance certifications (ROHS3, REACH Unaffected, MSL 1). The seated height difference (0.020" vs. 0.026") is within typical PCB assembly tolerances and does not affect functional substitution.

Q: What is the difference between anti-sulfur and automotive AEC-Q200 features?

A: Anti-sulfur is a material property that resists sulfur corrosion in specific environments. Automotive AEC-Q200 is a qualification standard for automotive-grade reliability. These are distinct feature sets. The RCS2012F4321CS includes anti-sulfur protection; CRCW08054K32FKEA, ERJ-6ENF4321V, and RMCF0805FT4K32 include AEC-Q200 qualification. Both feature sets are compatible with the specified electrical and mechanical parameters.

Q: Are there any height restrictions for PCB assembly?

A: Seated height variations range from 0.020" (0.50mm) to 0.028" (0.70mm) across all parts. These differences are within standard PCB assembly clearance specifications for 0805 packages. Verify clearance with specific PCB design constraints if height-critical applications are involved.

Q: Do all substitute parts have equivalent temperature performance?

A: Yes. All parts operate across -55°C ~ 155°C with ±100ppm/°C temperature coefficient, matching the original RCS2012F4321CS specification.

Q: Which substitute part has the highest inventory availability?

A: ERJ-6ENF4321V (Panasonic Electronic Components) has 119,708 pcs in stock, the highest among all identified substitutes.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts carry ROHS3 compliance and REACH Unaffected status, matching the original component's regulatory classification.