Vishay Dale CRCW0402301RFKED

Product Summary Vishay Dale CRCW0402301RFKED Thick Film Chip Resistor

The Vishay Dale CRCW0402301RFKED is a surface mount (SMD) thick film chip resistor engineered for high reliability and stable performance across a range of demanding applications. Rated at 301Ω with a tight ±1% tolerance and a power rating of 0.063W (1/16W), this resistor is packaged in the compact 0402 (1005 metric) footprint. It has been qualified to AEC-Q200 standards, signaling suitability for stringent automotive environments, as well as industrial and telecom installations. This series is built to meet the reliability and repeatability demands faced by design and procurement engineers tasked with specifying key passive components for modern electronic systems.

Design and Composition Details of CRCW0402301RFKED

At the core of the CRCW0402301RFKED lies a cermet film layer deposited onto high-grade alumina (Al₂O₃) ceramic substrate, selected for thermal stability and mechanical durability. Contacts are formed within the ceramic body, and a precision laser trim enables the resistor to achieve its exact target value without detrimental impact to the substrate. Finally, a glass-over protective coating is applied, providing both electrical insulation and resistance to harsh climatic and mechanical stresses. Terminations consist of pure tin on nickel plating, giving wide compatibility with Pb-free and traditional soldering processes and ensuring solderability for up to 2 years post-manufacture. These features collectively support robust long-term performance and allow for highly automated manufacturing and assembly processes.

Key Specifications and Environmental Standards CRCW0402301RFKED Characteristics

The specification for CRCW0402301RFKED includes several highlights aimed at contemporary regulatory and performance expectations:

Resistance value: 301Ω

Tolerance: ±1%

Power rating: 0.063W (1/16W)

Package size: 0402 (1005 metric)

Stability: ΔR/R ≤ 1% after 1000 hours at rated power (70°C ambient)

RoHS and halogen-free: Compliance with IEC 62474, GADSL, REACH SVHC

Maximum permitted storage time: 20 years

Immunity to tin whisker growth: Confirmed by extensive testing

Pitch packaging (0603): 2mm tape option for automated placement

In addition to RoHS and REACH compliance, the CRCW0402301RFKED is designed to meet further requirements such as the ELV, WEEE, and automotive industry substance controls, supporting responsible sourcing and disposal. Vishay also pursues conflict mineral elimination throughout its supply chain.

Operational Efficiency and Durability CRCW0402301RFKED in Practical Use

The operational stability and reliability of the CRCW0402301RFKED are well characterized for scenarios such as automotive modules exposed to temperature cycling, telecom base stations requiring sustained precision, and industrial controls where drift and noise performance must remain within specified bounds. The resistor’s ability to withstand power cycling, environmental fluctuations, and assembly cleaning agents (including alcohols, esters, and aqueous solutions) ensures that it meets the functional lifetimes demanded by its intended applications.

Engineers should note that, while there is no specified limited lifetime when operated within permissible limits, gradual resistance drift may establish a functional upper bound specific to critical applications. PCB layout and solder materials may influence junction temperatures and thus long-term reliability, making thermal design and selection of solder alloy important considerations during development.

Mounting and Handling Guidelines CRCW0402301RFKED Application Tips

The CRCW0402301RFKED is optimized for high-volume, automated SMD assembly lines, compatible with wave, reflow, and vapor-phase soldering as per IEC 61760-1. Its encapsulation resists all common cleaning solvents used post-soldering, supporting diverse electronics manufacturing processes. Vishay’s recommended solder pad dimensions align with IPC-7351 and IEC 61188-5-x standards, facilitating reliable electrical connectivity and consistent placement. Engineers should remain aware that high ambient temperatures or power dissipation could necessitate specialized board materials or solder alloys to maintain the integrity of solder junctions and overall system reliability.

Testing, Certifications, and Compliance Approval of CRCW0402301RFKED

Each CRCW0402301RFKED undergoes comprehensive testing, with 100% verification prior to packaging in accordance with IEC 60286-3. The resistor meets or exceeds the requirements of EN 60115-1, EN 60115-8 (EN 140400 successor), EN 140401-802, and a suite of IEC 60068 environmental test methods. Key aspects such as climate category, pulse load, and derating are managed per these standards. The resistor also passes most of the specifications stipulated by EIA/IS-703 and JIS-C-5201-1, supporting international deployment and qualification initiatives.

Alternative Options or Substitutes CRCW0402301RFKED Equivalent Models

For applications requiring different resistance values, Vishay Dale offers additional models in the CRCW family, such as CRCW0603562RFKEA (562Ω 0603 1%) and CRCW06030000Z0EA (0Ω jumper 0603). Engineers seeking tighter tolerance or improved temperature coefficient can refer to Vishay’s “Lead-Free Thick Film, Rectangular, Semi-Precision Chip Resistors” series. For environments where lead-bearing terminations are mandatory (legacy replacement or critical soldering processes), Vishay also provides the D/CRCW series with SnPb plating—refer to datasheet D/CRCW for further details.

Conclusion

: CRCW0402301RFKED in optimal component selection

The Vishay Dale CRCW0402301RFKED represents a robust, reliable choice for SMD thick film resistors in automotive, industrial, and telecom applications. With its meticulous construction, exacting environmental compliance, and broad qualification to international standards, this device enables engineers and procurement professionals to achieve both high reliability and supply-chain assurance. Consideration of the CRCW0402301RFKED’s physical characteristics, assembly compatibility, and tested durability will support optimal decisions in passive component selection for demanding electronic designs.