Vishay Dale CRCW040291K0FKED

CRCW040291K0FKED Vishay Dale Thick Film Chip Resistor Product Summary

The CRCW040291K0FKED from Vishay Dale is a surface-mount device (SMD) chip resistor, specified at 91 kΩ with a tolerance of ±1%, rated for 0.063W (1/16W) power dissipation, and housed in a compact 0402 (1005 metric) package. This model belongs to Vishay’s D/CRCW e3 series of standard thick film resistors, renowned for their reliability, precision, and robust performance in demanding electronic environments—including automotive, telecommunications, and industrial applications. The CRCW040291K0FKED is qualified to AEC-Q200, making it suitable for harsh and high-reliability sectors.

Main Attributes of Vishay Dale CRCW040291K0FKED

The CRCW040291K0FKED offers several features vital for engineering teams focused on reliability and design robustness:

Exceptional stability under varied environmental conditions, with resistance drift (ΔR/R) limited to ≤1% after 1000 hours at rated power (70°C).

RoHS compliant and free from halogen, supporting modern environmental requirements.

The 0402 size and 91 kΩ value, paired with 1% tolerance, enable precise circuit design and compact layout.

Pure tin-on-nickel terminations ensure high solderability and compatibility with both leaded and lead-free assembly processes.

Proven immunity against tin whisker growth, increasing long-term reliability.

Extended storage life up to 20 years, and 2-year solderability window post-production or requalification.

Packaged per IEC 60286-3 standards, promoting automated assembly processes.

Intended Uses for Vishay Dale CRCW040291K0FKED

As a highly stable and reliable thick film chip resistor, the CRCW040291K0FKED is ideal for:

Automotive electronics—such as control modules, sensing networks, and infotainment systems—where AEC-Q200 qualification is a necessity.

Industrial devices that require high reliability under extended operational stress, exposure to harsh environments, or continuous power cycling.

Telecommunications infrastructure, where long-term stability and strict electrical tolerance are critical.

General-purpose board-level signal conditioning or pull-up/pull-down networks in diverse electronic designs.

Construction Details and Manufacturing Process Vishay Dale CRCW040291K0FKED

The CRCW040291K0FKED is fabricated with a cermet film resistive layer deposited onto a high-grade alumina (Al₂O₃) ceramic substrate. Precision laser trimming ensures tight tolerance on resistance value without compromising substrate integrity. The element is encapsulated in a protective glass coating, providing mechanical and climatic resistance, and finished with pure tin-on-nickel termination layers for optimal solderability.

Production is tightly controlled to ensure batch-to-batch consistency, and 100% of finished devices undergo thorough electrical and mechanical testing. These procedures not only ensure compliance with Vishay standards but also with IEC, EN, and other relevant international specifications.

Operational Capabilities and Durability Vishay Dale CRCW040291K0FKED

The device is engineered for enduring reliability under rated dissipation and environmental stress. While there is no fixed lifetime if operated within permissible limits, resistance value drift sets the practical service window for the most sensitive designs. The CRCW040291K0FKED supports both single and continuous pulse loads, suitable for high-speed digital and analog circuits experiencing typical pulse voltages and currents.

Compliance with EN 60115-1, EN 60115-8, EN 140401-802, and IEC 60068-2-x testing standards ensures that the resistor maintains predictable performance in variable temperature, humidity, and pressure conditions. This makes the CRCW040291K0FKED especially well-suited for automotive, industrial, and infrastructure deployments, where extended field reliability is mandatory.

Mounting and Soldering Guidelines for Vishay Dale CRCW040291K0FKED

The CRCW040291K0FKED is designed with modern automated assembly lines in mind. It is compatible with all commercial SMD pick-and-place machinery and supports standard wave, reflow, or vapor phase soldering processes (as per IEC 61760-1). The encapsulation is robust against all typical electronics cleaning solvents, including alcohol-, ester-, and water-based solutions.

Recommended solder pad dimensions are provided to ensure optimal joint reliability and thermal dissipation. Vishay notes that, at higher ambient temperatures or dissipations, special board materials and solder alloys might be required to maintain assembly integrity and resistor reliability throughout the product lifetime.

Environmental Standards Adherence and Quality Certifications of Vishay Dale CRCW040291K0FKED

Vishay Dale’s CRCW040291K0FKED is compliant with the latest environmental and substances regulations, including IEC 62474, the Global Automotive Declarable Substance List (GADSL), and the European Union’s REACH list of Substances of Very High Concern (SVHC). The device satisfies all relevant directives:

End-of-Life Vehicles Directive (ELV) and amendment ELV II (2000/53/EC)

Restriction of Hazardous Substances (RoHS) Directive (2011/65/EU) and amendment 2015/863/EU

Waste Electrical and Electronic Equipment (WEEE, 2012/19/EU)

Additionally, Vishay actively pursues the elimination of conflict minerals and confirms that its manufacturing and supply chain practices meet established industry standards.

Alternative/Compatible Models for Vishay Dale CRCW040291K0FKED

Engineers considering alternate or equivalent models may compare the CRCW040291K0FKED against other thick film chip resistors in the D/CRCW e3 lineup with similar case size, resistance, and tolerance. For applications requiring even tighter tolerances or lower temperature coefficients, Vishay’s “Lead (Pb)-Free Thick Film, Rectangular, Semi-Precision Chip Resistors” may be of interest. For use cases requiring SnPb (tin-lead) terminations due to legacy assembly constraints, alternate versions within Vishay’s CRCW product line can be referenced.

When evaluating replacements, ensure that AEC-Q200 qualification, environmental compliance, packaging, and power ratings match the requirements of the intended application.

Conclusion

: Engineering Value of CRCW040291K0FKED Vishay Dale

The CRCW040291K0FKED thick film chip resistor stands out for product selection engineers and procurement professionals seeking a robust, precise, and environmentally compliant SMD resistor for automotive and industrial designs. Its comprehensive qualification, enduring performance under harsh conditions, ease of assembly, and rigorous quality controls make it a dependable choice where stability and longevity are paramount. As design cycles shorten and application environments grow ever more challenging, devices like CRCW040291K0FKED help ensure both performance and peace of mind in high-reliability electronic systems.