RC6432F5490CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F5490CS is a 549 Ohms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package format. This thick film, moisture-resistant component operates across the temperature range of -55°C to 155°C and maintains ROHS3 compliance with MSL 1 rating. The part is currently in active production status with 1085 pieces available in new original inventory. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component's functional requirements.

Substiute Parts

RC6432F5490CS

Samsung Electro-MechanicsIn Stock: 1161RC6432F5490CS Datasheet

Current PartRFQ

AC2512FK-07549RL

YAGEOIn Stock: 3051AC2512FK-07549RL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F5490CS is determined by strict alignment across the following critical parameters:

Electrical Parameters: Resistance value (549 Ohms), tolerance (±1%), power rating (1W), and temperature coefficient (±100ppm/°C) must match exactly.

Mechanical Parameters: Package designation (2512 / 6432 Metric) and physical dimensions must be compatible with the original PCB footprint and assembly process.

Environmental & Compliance Parameters: Operating temperature range (-55°C to 155°C), Moisture Sensitivity Level (MSL 1), RoHS3 compliance, and REACH status must be maintained or exceeded.

Material Composition: Thick film construction is required to ensure equivalent performance characteristics and reliability.

The substitute part AC2512FK-07549RL from YAGEO meets all these criteria while adding automotive-grade AEC-Q200 qualification, making it functionally interchangeable with the original Samsung component.

Parameter Comparison

Engineering Selection Recommendations

The AC2512FK-07549RL from YAGEO is a direct functional equivalent to the RC6432F5490CS. Both components share identical electrical specifications, mechanical package dimensions, and environmental operating parameters. Both maintain ROHS3 compliance and MSL 1 moisture sensitivity ratings, ensuring equivalent reliability in standard and demanding applications.

The YAGEO substitute carries AEC-Q200 automotive qualification, which represents an enhancement over the baseline Samsung component. This additional certification does not create incompatibility; rather, it indicates the substitute meets more stringent automotive industry reliability standards. Selection between the two components should be based on supply chain availability, cost considerations, and specific application requirements rather than technical performance differences.

Both parts are in active production status with substantial inventory availability (Samsung: 1085 pcs; YAGEO: 3031 pcs), supporting consistent procurement and design continuity.

Frequently Asked Questions (FAQ)

Q: Can AC2512FK-07549RL replace RC6432F5490CS in existing designs without PCB modification?

A: Yes. Both components use the 2512 (6432 Metric) package with compatible footprints. Physical dimensions are within acceptable tolerance (Samsung: 6.30mm × 3.20mm; YAGEO: 6.35mm × 3.10mm), and both maintain identical electrical specifications and operating parameters.

Q: What does AEC-Q200 certification on the YAGEO part mean for non-automotive applications?

A: AEC-Q200 is an automotive industry reliability standard. For non-automotive applications, this certification indicates the component exceeds baseline reliability requirements but does not impose additional constraints. The part remains fully compatible with standard industrial and consumer applications.

Q: Are the physical dimensions identical between the two parts?

A: Dimensions are functionally equivalent within standard PCB assembly tolerances. Samsung specifies 6.30mm × 3.20mm length and width; YAGEO specifies 6.35mm × 3.10mm. Both seated heights are 0.026" (0.65-0.66mm). These minor variations fall within standard component placement and soldering specifications.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both RC6432F5490CS and AC2512FK-07549RL carry MSL 1 (Unlimited) ratings, indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.

Q: Which part should be selected for new designs?

A: Selection depends on supply chain strategy and application requirements. The YAGEO AC2512FK-07549RL offers higher inventory availability (3031 pcs vs. 1085 pcs) and automotive-grade certification. The Samsung RC6432F5490CS remains a valid choice where existing supplier relationships or specific procurement requirements apply. Both are technically equivalent for standard applications.