T-cedilla (majuscule: Ţ, minuscule: ţ) is a letter which is part of the Gagauz alphabet, used to represent the sound /t͡s/, the voiceless alveolar affricate (like ts in bolts, or like the letter C in Slavic languages).
It is written as the letter T with a cedilla below and it has both the lower-case (U+0163) and the upper-case variants (U+0162).
[1] This character was used in Kabyle (Berber) for the affricate /t͡s/ (now represented with a tt).
In early versions of Unicode, the Romanian letter Ț (T-comma) was considered a glyph variant of Ţ, and therefore was not present in the Unicode Standard.
The letter was only added to the standard in Unicode 3.0 (1999), and some texts in Romanian still use Ţ instead.