KEMET T491D106K050AT

Summary of the KEMET T491D106K050AT Tantalum Capacitor

The KEMET T491D106K050AT is a solid tantalum surface mount capacitor engineered to meet the demanding requirements of modern automated production and high-reliability electronic designs. With a nominal capacitance of 10µF, a rated voltage of 50V, and a compact 2917 (7343 metric) case size, this device falls within the T491 MnO₂ Industrial Grade series—a family widely recognized as a leading choice for standard tantalum SMD solutions. Designed to meet or exceed EIA 535BAAC requirements and classified as moisture sensitivity level (MSL) 1 per J-STD-020, the T491D106K050AT is optimized for broad industrial usage with robust performance and process compatibility.

Main Attributes and Benefits of the T491D106K050AT

The T491D106K050AT distinguishes itself by integrating both technological advancements and manufacturing best practices, resulting in a capacitor that appeals to both engineering and procurement teams. Key features include:

EIA Standard 535BAAC compliance, ensuring industry benchmark performance.

Symmetrical, compliant terminations and options for matte tin or gold-plated finish for versatile assembly and application needs.

Laser-marked case for robust traceability in production.

100% surge current testing on select case sizes, which enhances reliability in real-world scenarios involving power-up surges.

RoHS-compliant construction and halogen-free epoxy for environmental responsibility.

An operational temperature range from -55°C to +125°C, broadening its application field.

Tape & Reel packaging per EIA 481, compatible with automatic pick-and-place machinery for high-throughput manufacturing.

In-depth Electrical and Physical Specifications of the T491D106K050AT

From a technical perspective, the T491D106K050AT offers:

10μF capacitance with ±10% tolerance, supporting filtering and decoupling roles in DC/DC converters, telecommunications, and portable electronics.

50V DC voltage rating and a maximum equivalent series resistance (ESR) of 800 mΩ—parameters balanced for both energy storage and ripple current management.

Size code “D” (2917/7343 metric), optimized for board real estate constraints and low-profile requirements.

Termination finish options including 100% matte tin as standard, with available gold-plated or tin/lead finishes for specialty assembly processes.

Full compatibility with reflow, IR, convection, and wave soldering techniques, supporting a range of manufacturing flows.

The capacitor is marked for polarity, a critical consideration due to tantalum’s inherent unidirectional operation.

Environmental Standards and Reliability Assessment of the T491D106K050AT

The T491D106K050AT’s construction emphasizes long-term dependability and adherence to relevant safety/environmental standards:

Fully RoHS compliant as per Directive 2002/95/EC when specified with compliant terminations.

Halogen-free and features a molded epoxy enclosure meeting UL94 V-0 fire resistance and ASTM E 595 outgassing criteria.

Designed with unlimited floor life (MSL1), simplifying logistics and handling.

100% surge testing and careful material selection further improve device reliability, helping guard against field failures due to voltage spikes or environmental extremes.

Design Integration Tips for the T491D106K050AT in Engineering Applications

Selecting the T491D106K050AT calls for attention to several application engineering factors:

Voltage derating is advised; engineers should typically use tantalum capacitors at 50-70% of their rated voltage to maximize operational lifespan.

Permissible ripple current and ripple voltage are closely linked to ESR and maximum power dissipation, and should be fully characterized during design (formulas provided in the official documentation help calculate these limits based on actual operating conditions).

Layout engineers should follow the recommended land pattern dimensions from the KEMET documentation, adjusted for the board’s component density level, to ensure solder joint integrity and mitigate risks during reflow or wave soldering.

As with all tantalum capacitors, reverse voltage tolerance is minimal—circuit designs must ensure proper polarity to avoid permanent damage.

Alternative or Substitute Models Comparable to the T491D106K050AT

When alternative sourcing or risk mitigation strategies are needed, review these options:

Other KEMET T491 series parts with matching electrical ratings and case size may be considered, especially as KEMET may substitute devices with higher voltage ratings or tighter tolerance at its discretion.

Comparable MnO₂-based SMD tantalum capacitors from established manufacturers that list 10µF, 50V, and 2917 size parameters with similar ESR values can serve as functional equivalents.

It is critical when cross-referencing to verify electrical, thermal, and reliability characteristics, as well as RoHS and MSL ratings, to ensure seamless replacement in automated manufacturing environments.

Packaging, Handling, and Storage Recommendations for the T491D106K050AT

The T491D106K050AT is supplied in 8 or 12 mm tape on 7" or 13" reels, conforming to EIA 481 for automated pick-and-place compatibility. Adherence to recommended storage conditions—maximum 40°C and 60% RH, minimal temperature swings, and avoidance of corrosive atmospheres—ensures optimal solderability and device stability even after extended warehousing. For assembly, KEMET recommends up to three reflow cycles under standard IPC/J-STD-020D profiles. Proper care during soldering and storage avoids both physical and functional degradation, supporting high first-pass yield and product reliability.

Conclusion

: Suitability of the T491D106K050AT for Modern Surface Mount Applications

With its robust electrical characteristics, broad environmental compliance, and manufacturing versatility, the KEMET T491D106K050AT is well-suited for engineers and procurement specialists addressing high-volume, quality-critical electronics applications. The part’s combination of reliable performance, standard-compliant packaging, and supply chain flexibility makes it a compelling solution for designs requiring stable and efficient decoupling or filtering in dense electronic systems. By carefully considering the key electrical, mechanical, and environmental parameters—as well as cross-compatibility within the T491 family and the wider SMD tantalum market—teams can confidently integrate the T491D106K050AT into their next-generation product platforms.