Walsin Technology Corporation WR04X6202FTL

Product Summary WR04X6202FTL Surface Mount Resistor from Walsin Technology Corporation

The WR04X6202FTL is a 62 kΩ surface-mount chip resistor from Walsin Technology Corporation, designed for optimal size, reliability, and ease of integration in today’s compact electronics. Featuring a 1% tolerance and a 1/16W (0.063W) power rating, the device is constructed in the 0402 package (1005 metric), leveraging thick film technology on a ceramic substrate. It is an ideal fit for applications requiring precise resistance in a compact form factor, such as consumer electronics, information processing equipment, and telecom hardware.

Main Attributes and Benefits of WR04X6202FTL

The WR04X6202FTL offers high reliability and electrical stability, two attributes crucial for modern circuit designs prioritizing longevity and performance consistency. Its compact 0402 package allows for high-density layouts, facilitating the miniaturization of electronic assemblies without sacrificing electrical performance. Additional benefits include lower assembly costs enabled by surface-mount compatibility and automated placement suitability. The device meets RoHS 2 compliance with exemption 7C-I and is also halogen free, making it a viable option for environmentally conscious product design. Flame retardance is certified to the UL94-V0 standard, further ensuring the resistor’s safety characteristics.

Structure and Engineering Achieving Accuracy and Reliability with WR04X6202FTL

Engineered around a high-grade aluminum oxide ceramic body, the WR04X6202FTL employs internal metal electrodes at each end, connected by a carefully formulated resistive paste deposited on the substrate. Resistance values are meticulously adjusted through laser trimming, guaranteeing the 1% tolerance specification for critical applications. A protective coating safeguards the resistive layer, while external terminations employ a lead-free tin alloy to optimize solderability and ensure compatibility with contemporary reflow soldering processes. This entire structure results in a component optimized for stability, mechanical robustness, and consistent electrical characteristics.

Electrical Ratings and Performance Parameters of WR04X6202FTL

With a nominal resistance of 62 kΩ, a 1% precision tolerance, and a 1/16W (0.063W) continuous power rating, the WR04X6202FTL adheres to the standardization of E96 values for high-precision applications. Its rated continuous working voltage is determined by the formula RCWV = √(Rated Power × Resistance Value), or the listed maximum, whichever is lower, following IEC 60115-8 guidelines. Power derating must be managed according to ambient temperature, with performance graphs provided to ensure correct application in varying thermal environments. The device’s robust construction supports stringent testing for climate and mechanical stress in accordance with IEC, EIA, EIAJ, and JIS standards.

Use Cases for WR04X6202FTL in Practical Electronic Applications

The WR04X6202FTL is well-suited to demanding applications in consumer electronics (such as smartphones, tablets, and wearables), electronic data processing (EDP) devices, and telecommunications infrastructure where consistent performance over long operating lifespans is required. Its small footprint makes it ideal for densely populated PCBs, enabling designers to maximize functional density. The device also serves well in analog and digital signal conditioning networks, input protection, and feedback circuits where precision and stability directly influence overall device behavior.

Installation, Soldering, and Handling Guidelines for WR04X6202FTL

Designed for automated SMD assembly, the WR04X6202FTL features tight dimensional tolerances ensuring compatibility with high-speed placement machines. The resistor can be immersed in solder baths at 260°C for 10 seconds, with proven resistance to leaching and robust terminal metallization for reliable joint formation. It is compatible with infrared reflow profiles tailored for SnAgCu solder pastes. To preserve solderability and device integrity, it is recommended to use the WR04X6202FTL within two years of production and store at 5–40°C, 20–70% relative humidity. Avoiding corrosive environments and excessive mechanical stress is vital during storage and handling.

Quality Control, Certifications, and Test Procedures for WR04X6202FTL

Each WR04X6202FTL unit is produced and verified in accordance with IEC 60068-1 and IEC 60115-8, with climatic and mechanical robustness tested per global standards. Devices are flammability rated to UL94-V0, RoHS 2-compliant (with exemption 7C-I), and free of halogens, supporting both legislative and industry requirements for hazardous substances and fire safety.

Packing, Storage, and Logistics Information for WR04X6202FTL

The WR04X6202FTL is available in automated machine-friendly paper tape: 10,000 parts per standard 7-inch reel or 70,000 per 13-inch reel for high-volume manufacturing, with bulk packaging alternatives for flexible logistics. Proper storage conditions help preserve both the mechanical and soldering quality of the resistors, ensuring premium performance at the point of use.

Alternative or Substitute Options for WR04X6202FTL

While the WR04X6202FTL is a member of Walsin’s general-purpose thick film resistor series (WR04), similar components are available in adjacent EIA sizes (WR06, WR08, WR10, WR12) for alternate board layouts or power requirements, while maintaining compatibility in resistance values and tolerance classes. These adjacent models offer a pathway for design modifications or supply-chain flexibility. Selection among these depends on specific power, size, and layout preferences encountered in engineering or procurement scenarios.

Conclusion

: Evaluating WR04X6202FTL for your engineering and procurement needs

The WR04X6202FTL from Walsin Technology Corporation stands out as a robust, stable, and precise thick film chip resistor tailored for today’s dense, reliable electronic applications. By adhering to globally recognized quality and safety standards, supporting automated assembly, and offering multiple packaging options, it addresses the critical needs of both circuit designers and procurement professionals. For applications demanding tight tolerance in a miniature form factor—with environmental and quality compliance as a must—the WR04X6202FTL presents a compelling solution deserving serious consideration in your next project.