What ㎊ means
It is pF, written inside one East Asian character cell. The unit pF means picofarad, a measure of electrical capacitance. The frame changes the character's width, not the measurement.
Unicode describes square abbreviations like this as compatibility forms from a wider repertoire associated with East Asian character sets. That repertoire draws on Korean KS X 1001, Chinese GB 2312, Japanese JIS X 0208 and JIS X 0213, and CNS 11643. The square lets a Latin unit abbreviation occupy one character cell alongside East Asian text; the unit's meaning stays the same.
Why is pF in a square?
The frame gives pF the width of one character cell.
Japanese typography guidance recommends full-width unit characters chiefly for vertical writing and prefers ordinary unit lettering in horizontal text. Use ㎊ when a one-cell layout or legacy format requires it; use pF in an ordinary horizontal sentence.
Technical and compatibility-driven: the square marks a layout choice, not a different measurement.
The square does not mean a different unit: ㎊ is still pF.
Part of the collection
Don't confuse it with
3pF It is the same unit as pF, written with two ordinary Latin letters; ㎊ takes one cell.
Questions people ask
1Why did ㎊ turn into pF?
Compatibility normalization replaces the compact form with its ordinary-letter equivalent: ㎊ becomes pF, keeping the unit but dropping the one-cell shape.
More like this
9
How to type or find ㎊
- Search it as
- pF · picofarad · picofarad symbol · pF symbol · square pF · full-width pF · zenkaku pF · capacitance
- Shows up in
- Anything that takes text · its shape is whatever your font draws
㎊\338ACodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.