Overview of Nichicon F91 and F92 Series Solid Tantalum Electrolytic Capacitors
The Nichicon F91 and F92 Series are collections of solid tantalum electrolytic capacitors designed for surface mount applications (SMD) with a focus on low equivalent series resistance (ESR) and high-frequency performance. These components comply with the RoHS directive (2002/95/EC) and are available in various standard ratings.
Key Performance Characteristics
The capacitors operate over a temperature range of -55°C to +125°C, with a rated temperature of +85°C. Their capacitance tolerance is specified at ±20% or ±10% at a frequency of 120Hz, and the dissipation factor and ESR are detailed in provided tables. For leakage current, the datasheet states that the capacitors maintain specific maximum values across different temperatures after a minute’s application of rated or derated voltage.
Environmental and Mechanical Tests
The capacitors undergo various tests to ensure durability and stability under different conditions. This includes:
– Damp heat testing with up to 500 hours at 40°C and 90% to 95% relative humidity, without voltage applied.
– Temperature cycling, with changes in capacitance and dissipation factor within specific thresholds.
– Resistance to soldering heat, maintaining performance characteristics after immersion in solder at 260°C.
– Surge testing, validating the capacitors’ behavior after applying surge voltage.
– An endurance test for 2000 hours at 85°C with rated voltage and an additional test at 125°C with derated voltage.
– Shear and terminal strength tests assess the mechanical robustness of the capacitor after mounting.
Product Identification and Ratings
The part numbering system provided helps identify the different variations of the capacitors, specifying rated capacitance, voltage, and further details. Also, standardized rated capacitance and voltage codes are supplied for reference. Different series within these product lines are designed to cater to a range of applications, and their development status is also mentioned.
Additional Information
Details on taping code, case code, dimensions, and additional specification references are included in the datasheet for the F92 Compact Series, indicating depth on several parameters on subsequent pages.
For further information on surge, derated voltage at 125°C, and comprehensive characterization tables, readers are directed to various pages in the full datasheet. For design-in applications, contact with local Nichicon sales offices is recommended.
References:
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