This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is a square composition of the glyphs Latin Small Letter M, Latin Capital Letter V. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. U+33B7 offers a line break opportunity at its position, except in some numeric contexts.
The Wikipedia has the following information about this codepoint:
The volt (symbol: V) is the unit of electric potential, electric potential difference (voltage), and electromotive force in the International System of Units (SI).
Representations
System
Representation (click value to copy)
Nº
13239
UTF-8
E3 8E B7
UTF-16
33 B7
UTF-32
00 00 33 B7
URL-Quoted
%E3%8E%B7
HTML hex reference
㎷
Wrong windows-1252 Mojibake
㎷
Encoding: CP949 (hex bytes)
A7 C6
Encoding: EUC_KR (hex bytes)
A7 C6
Encoding: GB18030 (hex bytes)
81 39 E8 31
Encoding: ISO2022_JP_2 (hex bytes)
1B 24 28 43 27 46 1B 28 42
Encoding: ISO2022_KR (hex bytes)
1B 24 29 43 0E 27 46 0F
Encoding: JOHAB (hex bytes)
DC 56
Adobe Glyph List
mvsquare
RFC 5137
\u'33B7'
Bash and Zsh inside echo -e
\u33B7
C and C++
\u33B7
C#
\u33B7
CSS
\0033B7
Excel
=UNICHAR(13239)
Go
\u33B7
JavaScript
\u33B7
Modern JavaScript since ES6
\u{33b7}
JSON
\u33B7
Java
\u33B7
Lua
\u{33B7}
Matlab
char(13239)
Perl
"\x{33B7}"
PHP
\u{33b7}
PostgreSQL
U&'\33B7'
PowerShell
`u{33B7}
Python
\u33B7
Ruby
\u{33b7}
Rust
\u{33b7}
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