Equivalent & Substitute Parts for RC1005F434CS

Part Overview

The RC1005F434CS is a 430 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0402 (1005 Metric) package format. This component is rated for 0.063W (1/16W) power dissipation with a temperature coefficient of ±100ppm/°C and operates across the -55°C to 155°C temperature range. The part is ROHS3 compliant, REACH unaffected, and carries MSL Level 1 (unlimited moisture sensitivity rating). With active product status and 1114 units in current inventory, equivalent and substitute parts are available from multiple manufacturers to support design flexibility, supply chain continuity, and application-specific requirements such as automotive qualification.

Substiute Parts

RC1005F434CS

Samsung Electro-MechanicsIn Stock: 1170RC1005F434CS Datasheet

Current PartRFQ

RC0402FR-07430KL

YAGEOIn Stock: 354089RC0402FR-07430KL Datasheet

DirectRFQ

ERJ-2RKF4303X

Panasonic Electronic ComponentsIn Stock: 141055ERJ-2RKF4303X Datasheet

UpgradeRFQ

AC0402FR-07430KL

YAGEOIn Stock: 20582AC0402FR-07430KL Datasheet

SimilarRFQ

CRCW0402430KFKED

Vishay DaleIn Stock: 53270CRCW0402430KFKED Datasheet

SimilarRFQ

RMCF0402FT430K

Stackpole Electronics IncIn Stock: 79124RMCF0402FT430K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1005F434CS is determined by strict equivalence across the following critical parameters:

Mandatory Match Criteria:

• Resistance value: 430 kOhms (exact)
• Tolerance: ±1% (exact or tighter)
• Package / Case: 0402 (1005 Metric) (exact)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C to 155°C (minimum)
• RoHS Status: ROHS3 Compliant
• MSL Rating: Level 1 or equivalent

Acceptable Variation:

• Power Rating: 0.063W minimum; higher ratings (0.1W) are acceptable upgrades that do not affect circuit function
• Packaging Format: Tape & Reel (TR) or Cut Tape (CT) formats are interchangeable for procurement purposes
• Automotive Qualification: AEC-Q200 certification is an additional feature that does not preclude substitution for non-automotive applications

All five substitute parts listed meet these criteria and are direct functional equivalents or upgrades to the RC1005F434CS.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (No Functional Difference): RC0402FR-07430KL (YAGEO) is a direct equivalent to the RC1005F434CS. Both components share identical electrical specifications, package dimensions, and compliance certifications. This part is suitable for one-to-one replacement in any application where the original Samsung component was specified.

Upgrade Option (Enhanced Capability): ERJ-2RKF4303X (Panasonic Electronic Components) provides a power rating upgrade from 0.063W to 0.1W while maintaining all other electrical parameters. This component carries AEC-Q200 automotive qualification, making it suitable for applications requiring automotive-grade reliability. The increased power rating provides additional thermal margin without affecting circuit performance.

Automotive-Qualified Alternatives (Same Specifications with AEC-Q200): AC0402FR-07430KL (YAGEO), CRCW0402430KFKED (Vishay Dale), and RMCF0402FT430K (Stackpole Electronics Inc) are functionally equivalent to the RC1005F434CS with the addition of AEC-Q200 automotive qualification. These parts are suitable for applications requiring automotive-grade components or where supply chain diversification across qualified manufacturers is beneficial. All three maintain the 0.063W power rating and identical dimensional specifications.

Selection Basis:

• For general industrial applications with no automotive requirement: RC0402FR-07430KL or RC1005F434CS
• For automotive applications or designs requiring AEC-Q200 qualification: ERJ-2RKF4303X, AC0402FR-07430KL, CRCW0402430KFKED, or RMCF0402FT430K
• For applications with elevated thermal stress: ERJ-2RKF4303X (0.1W rating)
• For supply chain continuity: Any of the five substitute parts provide equivalent functionality

Frequently Asked Questions (FAQ)

Q: Can RC0402FR-07430KL be used as a direct replacement for RC1005F434CS? A: Yes. RC0402FR-07430KL is a direct functional equivalent. Both components have identical resistance (430 kOhms), tolerance (±1%), power rating (0.063W), package (0402), temperature coefficient (±100ppm/°C), operating range (-55°C to 155°C), and compliance certifications (ROHS3, MSL Level 1). No circuit modifications are required.

Q: What is the difference between the RC1005F434CS and ERJ-2RKF4303X? A: The primary difference is power rating: RC1005F434CS is rated at 0.063W (1/16W), while ERJ-2RKF4303X is rated at 0.1W (1/10W). All other electrical parameters are identical. ERJ-2RKF4303X additionally carries AEC-Q200 automotive qualification. The higher power rating of the Panasonic component provides greater thermal capability and is suitable for applications with higher power dissipation margins.

Q: Are the automotive-qualified parts (AC0402FR-07430KL, CRCW0402430KFKED, RMCF0402FT430K) suitable for non-automotive applications? A: Yes. AEC-Q200 qualification is an additional quality and reliability standard that exceeds general industrial requirements. These parts are fully compatible with non-automotive applications and provide enhanced reliability margins. Automotive qualification does not restrict use in non-automotive designs.

Q: Do all substitute parts have the same physical dimensions? A: All substitute parts use the 0402 (1005 Metric) package with dimensions of 0.039" L x 0.020" W (1.00mm x 0.50mm). Maximum seated height is 0.016" (0.40mm) for most parts, with AC0402FR-07430KL at 0.015" (0.37mm). These minor height variations do not affect PCB assembly compatibility.

Q: What is the significance of MSL Level 1 rating? A: MSL (Moisture Sensitivity Level) Level 1 indicates unlimited shelf life and no moisture bake-out requirement before soldering. All listed parts carry MSL Level 1, meaning they can be stored and handled without special moisture control procedures. This simplifies inventory management and reduces production constraints.

Q: Can these parts be used interchangeably in terms of packaging format? A: RC1005F434CS is supplied in Tape & Reel (TR) format. RC0402FR-07430KL is available in Cut Tape (CT) & Digi-Reel® format. All other substitutes are supplied in Tape & Reel (TR). Packaging format affects procurement and handling but does not affect electrical performance. Component selection should consider manufacturing process requirements (automated pick-and-place systems typically require tape format).

Q: Which substitute part offers the best supply availability? A: RC0402FR-07430KL (YAGEO) has the highest inventory level at 354,006 units in stock, followed by ERJ-2RKF4303X (Panasonic) at 141,030 units. All substitute parts maintain substantial inventory levels, ensuring supply continuity.