Questions tagged [symbol]

An electronic symbol is a pictogram used to represent various electrical and electronic devices

Filter by
Sorted by
Tagged with
3
votes
1answer
4k views

Different grounds

What is the meaning of different type of grounds in electronic circuits? Can we use any ground in any circuit or not?
3
votes
2answers
5k views

Can I change the size of a symbol in EagleCAD?

I am new to EagleCAD and I just finished generating a new complementary MOSFET in a TSOP-6 package. Everything was fine until I pulled the new component into my schematic and realized that it was way ...
13
votes
3answers
1k views

Schottky diode like BJT symbol

In this schematic, what do the Schottky diode like "barbs" mean on some of the BJTs where the base is connected? I haven't encountered this symbol before.
6
votes
2answers
5k views

Resistor symbol with a dot

I was looking for some reference and I found this resistor symbol: All the resistors in the schematic (several sheets) have the same symbol, so I concluded that it means nothing, but I'm not sure. ...
0
votes
2answers
5k views

Push (Button) Switch Symbol

I want to know what the symbol for a button switch is. It's the kind that if you push it, the circuit is complete, and if you release it, the circuit is broken. Also, it has four prongs, two on each ...
1
vote
1answer
4k views

Is there a standard symbol for a pressure sensor?

I am using Eagle to design a PCB that includes an analog pressure sensor. However, I can't seem to find if there is any standard symbol for the device. There isn't anything on the datasheet. I began ...
9
votes
1answer
956 views

What does this AC power connector symbol mean?

I've seen this on the wall-facing side of many (North American) AC power connectors. What is it called? What does it mean?
1
vote
2answers
277 views

Circuit Symbols

I am trying to design a circuit in Multisim and I am stuck on identifying the part circled in red. What in the hell is that? My initial thought was that it was a component that tells the Sensor ...
2
votes
1answer
547 views

Where is the text for the symbol stored in LTspice?

The following is an image of the symbol opamp.asy. I opened the same file using Notepad++ and have pasted the contents below: <...
11
votes
1answer
6k views

What do multiple emitters/collectors imply in a BJT schematics symbol?

I sometimes come across with BJT symbols from which multiple lines come out of emitter or collector. Are such BJTs different kind of devices? What does it mean in solid-state level?
6
votes
2answers
3k views

why in some circuit there is use of bubble followed by bar?

It is a circuit of ring counter. The clock here is negative triggered. but for set and clear it use bubble with bar.What is the need of bubble followed by bar. why it can not use a PRE and CLR (...
6
votes
1answer
374 views

Crystal oscillator in schematics

What the numbers 1 and 2 mean next to Crystal oscillator in hardware schematics? I tried to search online and went through about 20 lists with component symbols, but non had the numbers nor ...
6
votes
1answer
2k views

Is there a schematic symbol for a supercapacitor?

Is there a schematic symbol for a supercapacitor, as distinct from smaller polarized capacitors?
9
votes
5answers
4k views

What does this symbol indicate (line with brackets)?

I'm modelling a power system, and encountered a few symbols I have never seen before in a single line diagram. I believe the first one is a switch with three possible position. Closed, open and ...
7
votes
3answers
1k views

Switch symbol: Which line is normally-closed?

The symbol below is for the component TL32P0 (TINY SWITCH ON - MON), included in EAGLE 6.5. In this symbol, which pin is normally-closed (NC)? 1 or 3? Or is the symbol not a typical one, i.e. not ...
7
votes
2answers
2k views

Why does CircuitLab have the MOSFET symbols it has?

CircuitLab has [used to have -- they have changed their symbols since this question was asked] these goofy things: simulate this circuit – Schematic created using CircuitLab My eyes are much ...
3
votes
1answer
585 views

What is this schematic symbol? (Two small circles connecte by a bent line)

What does this symbol mean? It's part number is XM## and is connected in series with the output voltage of a chip.
4
votes
2answers
11k views

Meaning of FB symbol in schematics?

What does "FB" mean? I can only guess it's some kind of protective device because of F, like with FU for fuse. Is there any comprehensive online guide for such kind of symbols?
4
votes
2answers
965 views

What are these symbols?

Well I have these schematic of a vaccum tube amplifier, and I'm having some problems to understand some symbols. What are these symbols in red? What does exactly CW mean? It should be a logarithmic ...
5
votes
2answers
3k views

What does this schematic symbol mean? (triangle with a line crossing it out)

I found the following circuit symbol in an MSP430 User's Guide in the section describing the ADC: (I made a red circle around it) What does it represent?
18
votes
3answers
34k views

Use of ground symbols in circuit diagrams

In this question is the following diagram for a voltage booster intended for small battery powered devices The TPS61200 spec says GND is control/logic ground and PGND is power ground but this isn't ...
7
votes
3answers
27k views

Dots in a transformer symbol

I came across this schematic: What do the dots in the transformer indicate?
6
votes
1answer
1k views

Meaning of a small rectangle in schematic drawings

What is the meaning of the rectangle at the top of this schematic?
5
votes
1answer
3k views

Schematic symbol confusion

I'm looking at building an audio amplifier using the following the TDA7385 amplifier IC. Here is the data sheet: http://www.mouser.com/ds/2/389/CD00002618-109852.pdf I am confused by the application ...
0
votes
2answers
629 views

Capacitors in RFID reader

I'm trying to understand a schematic of an RFID reader. Circuit: What capacitors are used - electrolytic or ceramic capacitors? I've seen schemes of RFID readers that use electrolytic capacitors, ...
4
votes
1answer
205 views

Does the line on a zener diode correspond with the line in the symbol?

For a normal diode, the thin line on the component corresponds with the line of the symbol. Is this the same for a zener diode?
20
votes
3answers
19k views

What does a two overlapping circles symbol mean in an electrical schematic/diagram?

In the datasheet for a A3503 Hall Effect Sensor, I saw a circuit diagram labeled 'Functional Block Diagram', and it shows a symbol I have not seen before. It's shown here between 3 - Output and 2 - ...