RC2012F431CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012F431CS is a 430 Ohm ±1% 0.125W (1/8W) chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently active in production with 945 pieces in stock. Equivalent and substitute parts are identified to support procurement flexibility, design redundancy, and supply chain continuity.

Substiute Parts

RC2012F431CS

Samsung Electro-MechanicsIn Stock: 1006RC2012F431CS Datasheet

Current PartRFQ

CR0805-FX-4300ELF

Bourns Inc.In Stock: 29711CR0805-FX-4300ELF Datasheet

DirectRFQ

ERJ-6ENF4300V

Panasonic Electronic ComponentsIn Stock: 104859ERJ-6ENF4300V Datasheet

DirectRFQ

KTR10EZPF4300

Rohm SemiconductorIn Stock: 7112KTR10EZPF4300 Datasheet

DirectRFQ

RC0805FR-07430RL

YAGEOIn Stock: 28260RC0805FR-07430RL Datasheet

DirectRFQ

RMCF0805FT430R

Stackpole Electronics IncIn Stock: 12038RMCF0805FT430R Datasheet

DirectRFQ

AC0805FR-07430RL

YAGEOIn Stock: 4075AC0805FR-07430RL Datasheet

SimilarRFQ

CRCW0805430RFKEA

Vishay DaleIn Stock: 10443CRCW0805430RFKEA Datasheet

SimilarRFQ

ESR10EZPF4300

Rohm SemiconductorIn Stock: 27540ESR10EZPF4300 Datasheet

SimilarRFQ

MCR10ERTF4300

Rohm SemiconductorIn Stock: 1281MCR10ERTF4300 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across all critical electrical and mechanical parameters. The following criteria establish direct substitutability:

Primary Substitution Criteria:

• Resistance value: 430 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.125W minimum (equal or higher acceptable)
• Package: 0805 (2012 Metric) (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C minimum (equal or wider acceptable)
• Composition: Thick Film (exact match required)
• Termination count: 2 (exact match required)
• RoHS compliance: ROHS3 (exact match required)
• MSL rating: 1 (Unlimited) (exact match required)

Direct Substitutes meet all primary criteria with identical electrical and mechanical specifications. These parts are interchangeable without design modification.

Similar Substitutes meet all primary criteria but include additional features (automotive AEC-Q200 certification, higher power rating, or enhanced pulse withstanding capability) or differ in packaging format (Cut Tape vs. Tape & Reel). These parts are functionally compatible but may introduce additional capabilities or require packaging format consideration.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Preferred for Interchangeability):

CR0805-FX-4300ELF (Bourns Inc.) and RC0805FR-07430RL (YAGEO) are direct functional equivalents to the RC2012F431CS. Both maintain identical electrical specifications, 0805 package format, and moisture-resistant thick film composition. These parts are available in Tape & Reel packaging and carry active product status. Selection between these options depends on supplier availability and procurement lead times.

Automotive-Qualified Alternatives:

ERJ-6ENF4300V (Panasonic), KTR10EZPF4300 (Rohm), RMCF0805FT430R (Stackpole), AC0805FR-07430RL (YAGEO), and CRCW0805430RFKEA (Vishay Dale) all meet the core electrical and mechanical specifications while carrying AEC-Q200 automotive qualification. These parts are suitable for applications requiring automotive-grade reliability. The selection among these options is based on supplier availability, packaging format preference (Tape & Reel vs. Cut Tape), and height constraints for specific PCB layouts.

Enhanced Power Capability:

ESR10EZPF4300 (Rohm Semiconductor) provides 0.4W power rating compared to the standard 0.125W, with automotive AEC-Q200 qualification and pulse withstanding capability. This part is electrically and mechanically compatible but offers higher thermal dissipation capacity. Use this part only when the application requires enhanced power handling; standard 0.125W parts are sufficient for designs within their thermal envelope.

Discontinued Part:

MCR10ERTF4300 (Rohm Semiconductor) is discontinued at DiGi Electronics. While electrically and mechanically equivalent, this part should not be selected for new designs or long-term supply requirements.

Frequently Asked Questions (FAQ)

Q: Can I substitute CR0805-FX-4300ELF for RC2012F431CS without design changes?

A: Yes. CR0805-FX-4300ELF meets all electrical and mechanical specifications of RC2012F431CS. Both are 430 Ohm ±1% 0.125W thick film resistors in 0805 package with identical temperature coefficients and operating ranges. No design modification is required.

Q: What is the difference between moisture-resistant and automotive AEC-Q200 versions?

A: Moisture-resistant versions (CR0805-FX-4300ELF, RC0805FR-07430RL) are optimized for humidity protection in standard industrial applications. Automotive AEC-Q200 versions (ERJ-6ENF4300V, RMCF0805FT430R, CRCW0805430RFKEA) meet automotive reliability and qualification standards. Both meet ROHS3 compliance and MSL 1 rating. Selection depends on application requirements and industry standards.

Q: Why does ESR10EZPF4300 have a different power rating?

A: ESR10EZPF4300 is rated at 0.4W (2/5W) compared to the standard 0.125W (1/8W). This higher power rating provides greater thermal dissipation capacity for applications with higher current or pulse requirements. The part is electrically equivalent (430 Ohm ±1%) and mechanically compatible (0805 package) but should only be used when the application requires enhanced power handling.

Q: Does packaging format (Tape & Reel vs. Cut Tape) affect electrical performance?

A: No. Packaging format affects only handling, storage, and assembly processes. Tape & Reel format is standard for automated assembly lines. Cut Tape & Digi-Reel format is suitable for manual assembly or lower-volume production. Electrical and mechanical specifications remain identical regardless of packaging format.

Q: Can I use automotive AEC-Q200 parts in non-automotive applications?

A: Yes. Automotive-qualified parts exceed standard industrial specifications and are fully compatible with non-automotive applications. Using automotive-grade components in standard applications introduces no compatibility issues and may provide additional reliability margin.

Q: What is the significance of height differences (0.50mm to 0.70mm)?

A: Height variation reflects manufacturing tolerance and design differences among manufacturers. All parts remain within the 0805 package specification. Height differences are significant only for applications with strict PCB clearance constraints or high-density layouts. Verify height compatibility with specific PCB design requirements before selection.

Q: Should I avoid MCR10ERTF4300 due to discontinued status?

A: Yes. MCR10ERTF4300 is discontinued at DiGi Electronics and should not be selected for new designs or applications requiring long-term supply assurance. Select from active product alternatives listed in this reference.

Q: Are all listed parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification. All parts also maintain MSL 1 (Unlimited) moisture sensitivity level, indicating no special storage or handling requirements.