Passive-pull-down-output Symbol
⎑ is the passive-pull-down output symbol used in technical notations.
U+2391
The symbol ⎑ is called the passive-pull-down output symbol. It’s part of the Technical & Computer category and is useful when documenting or designing systems and signals. Below you’ll find practical ways to copy and use it correctly.
Passive-pull-down-output Symbol Symbol Meaning
⎑ (Unicode U+2391) is a technical symbol named “PASSIVE-PULL-DOWN-OUTPUT SYMBOL.” In technical diagrams and documentation, it represents a passive pull-down behavior for an output or signal line—commonly to indicate that the signal can be brought to a low state through a passive pull-down rather than an active drive. Because it’s a dedicated Unicode character, it’s often preferred over images when you’re writing specifications, annotations, UI labels, or code-related documentation for hardware-like behavior. Use it when you need a clear, standardized notation that will render consistently across text and platforms that support the glyph.
Common uses
- •Labeling signal behavior in hardware or electronics diagrams (text-first documentation)
- •Annotating UI elements in developer tools that describe pull-up/pull-down states
- •Writing technical notes or specifications where passive pull-down output is relevant
- •Adding concise legends or callouts in schematics rendered with plain text
- •Documenting software/hardware interfaces that model passive pull-down outputs
Examples
⎑ Passive-Pull-Down Output Symbol
- ⎑“When disabled, the output is shown as ⎑ (passive pull-down).”
- ⎑“Status line: ⎑ indicates a passive pull-down behavior.”
- ⎑“For this configuration, use ⎑ in the signal legend.”
- ⎑“The connector output follows ⎑ after reset.”
- ⎑“Draw the output state using ⎑ to show the pull-down.”
Variations
Ready to copy
Technical codes
| Unicode | U+2391 | |
| HTML Entity | ⎑ | |
| HTML Code | ⎑ | |
| CSS | \2391 | |
| Alt Code | Alt + 9105 | |
| Decimal | 9105 |
How to type Passive-pull-down-output Symbol (⎑)
On Windows
Hold Alt and type 9105 on the numeric keypad. In Word, type 2391 then press Alt + X.
On Mac
Switch to the Unicode Hex Input keyboard, then hold Option and type 2391. Or press Control + Command + Space and search.
On Linux
Press Control + Shift + U, type 2391, then press Enter or Space.
Anywhere
Copy ⎑ with the button above and paste it wherever you need it — this works on every device and in every app, with no keyboard shortcut to remember.
FAQ
What does the Passive-pull-down-output Symbol symbol mean?
⎑ (Unicode U+2391) is a technical symbol named “PASSIVE-PULL-DOWN-OUTPUT SYMBOL.” In technical diagrams and documentation, it represents a passive pull-down behavior for an output or signal line—commonly to indicate that the signal can be brought to a low state through a passive pull-down rather than an active drive. Because it’s a dedicated Unicode character, it’s often preferred over images when you’re writing specifications, annotations, UI labels, or code-related documentation for hardware-like behavior. Use it when you need a clear, standardized notation that will render consistently across text and platforms that support the glyph.
What Unicode character is ⎑?
⎑ is the PASSIVE-PULL-DOWN-OUTPUT SYMBOL at Unicode code point U+2391.
How do I copy ⎑ into HTML?
Use the HTML entity: ⎑
How do I use ⎑ in CSS?
Use the CSS escape: \\2391
How do I include ⎑ in JavaScript?
Use the JavaScript escape: \\u{2391}