This character is a Nonspacing Mark and is mainly used in the Hebrew script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Nonspacing Mark. When changing direction it is not mirrored. U+05B6 prohibits a line break before it.
The Wikipedia has the following information about this codepoint:
Segol (modern Hebrew: סֶגּוֹל, IPA:[seˈɡol]; formerly סְגוֹל, səḡôl) is a Hebrew niqqud vowel sign that is represented by three dots forming an upside down equilateral triangle "ֶ ". As such, it resembles an upside down therefore sign (a because sign) underneath a letter. In modern Hebrew, it indicates the phoneme /e/ which is similar to "e" in the English word sound in sell and is transliterated as an e.
In Modern Hebrew, segol makes the same sound as tzere, as does the Hataf Segol (Hebrew: חֲטַף סֶגּוֹלIPA:[ħaˈtafseˈɡol], "Reduced Segol"). The reduced (or ħataf) niqqud exist for segol, patah, and kamatz which contain a shva next to it.
Representations
System
Representation (click value to copy)
Nº
1462
UTF-8
D6 B6
UTF-16
05 B6
UTF-32
00 00 05 B6
URL-Quoted
%D6%B6
HTML hex reference
ֶ
Wrong windows-1252 Mojibake
◌ֶ
Encoding: CP1255 (hex bytes)
C6
Encoding: GB18030 (hex bytes)
81 30 F6 36
Adobe Glyph List
afii57795
Adobe Glyph List
segol
Adobe Glyph List
segol13
Adobe Glyph List
segol1f
Adobe Glyph List
segol2c
Adobe Glyph List
segolhebrew
Adobe Glyph List
segolnarrowhebrew
Adobe Glyph List
segolquarterhebrew
Adobe Glyph List
segolwidehebrew
RFC 5137
\u'05B6'
Bash and Zsh inside echo -e
\u05B6
C and C++
\u05B6
C#
\u05B6
CSS
\0005B6
Excel
=UNICHAR(1462)
Go
\u05B6
JavaScript
\u05B6
Modern JavaScript since ES6
\u{5b6}
JSON
\u05B6
Java
\u05B6
Lua
\u{5B6}
Matlab
char(1462)
Perl
"\x{5B6}"
PHP
\u{5b6}
PostgreSQL
U&'\05B6'
PowerShell
`u{5B6}
Python
\u05B6
Ruby
\u{5b6}
Rust
\u{5b6}
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