The tantalum SMT capacitor in its solid-state structure is typically rated as capable of 125C applications. The T498 tantalum surface mount capacitor introduced earlier this year has a maximum temperature rating of 150C. Now with the introduction of the T499, the temperature range capability has been extended to +175C. The difference between the T499 and the standard tantalum capacitor lies within its material set and design. The materials changed include the carbon, the silver epoxy, the silver paint, the plastic molded encapsulant, and the leadframe. These materials also differ from those changes incorporated with the T498. These materials still contain no lead 1