Electrical And Electronics Engineering.

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<tr><th width="48"><h1><span style="font-size: small;">Electrical and electronic circuit symbols are used for drawing schematic diagram.</span></h1><h1><span style="font-size: small;">please select This item And Copy  or Open MS Word and Paste </span></h1>The symbols represent electrical and electronic components.<br />
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<tr><th width="48"><span style="font-size: 0.8em;">Symbol</span></th><th width="193">Component name</th><th>Meaning</th></tr>
<tr><th colspan="3"><h4><a href="http://www.blogger.com/post-edit.g?blogID=4365676431210399719&postID=2966087797685999035" name="wire symbols"></a>Wire Symbols</h4></th></tr>
<tr><td width="48"><img alt="electrical wire symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/wire.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Electrical_wiring">Electrical Wire</a></td><td>Conductor of electrical current</td></tr>
<tr><td width="48"><img alt="connected wires symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/wires%20connected.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Electrical_wiring">Connected Wires</a></td><td>Connected crossing</td></tr>
<tr><td width="48"><img alt="unconnected wires symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/wires%20not%20connected.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Electrical_wiring">Not connected Wires</a></td><td>Wires are not connected</td></tr>
<tr><th colspan="3"><h4><a href="http://www.blogger.com/post-edit.g?blogID=4365676431210399719&postID=2966087797685999035" name="switch symbols"></a>Switch Symbols and Relay Symbols</h4></th></tr>
<tr><td width="48"><img alt="SPST switch symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/switch.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Switch">SPST Toggle Switch</a></td><td>Disconnects current when open</td></tr>
<tr><td width="48"><img alt="SPDT switch symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/switch%20II.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Switch">SPDT Toggle Switch</a></td><td>Selects between two connections</td></tr>
<tr><td width="48"><img alt="push button symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/push%20button.GIF" width="48" /></td><td width="193">Pushbutton Switch (N.O)</td><td>Momentary switch - normally open</td></tr>
<tr><td width="48"><img alt="push button symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/push%20button%20II.GIF" width="48" /></td><td width="193">Pushbutton Switch (N.C)</td><td>Momentary switch - normally closed</td></tr>
<tr><td width="48"><img alt="dip switch symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/dip_switch.GIF" width="48" /></td><td width="193"><a href="http://www.rapidtables.com/electric/DIP_Switch.htm">DIP Switch</a></td><td>DIP switch is used for onboard configuration</td></tr>
<tr><td width="48"><img alt="spst relay symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/relay_spst.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Relay">SPST Relay</a></td><td rowspan="2">Relay open / close connection by an electromagnet</td></tr>
<tr><td width="48"><img alt="spdt relay symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/relay_spdt.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Relay">SPDT Relay</a></td></tr>
<tr><td width="48"><img alt="jumper symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/jumper.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Jumper_%28computing%29">Jumper</a></td><td>Close connection by jumper insertion on pins.</td></tr>
<tr><td width="48"><img alt="solder bridge symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/solder%20bridge.GIF" width="48" /></td><td width="193"><a href="http://www.rapidtables.com/electric/Solder_Bridge.htm">Solder Bridge</a></td><td>Solder to close connection</td></tr>
<tr><th colspan="3"><h4><a href="http://www.blogger.com/post-edit.g?blogID=4365676431210399719&postID=2966087797685999035" name="ground symbols"></a>Ground Symbols</h4></th></tr>
<tr><td width="48"><img alt="earth  ground symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/ground%20earth.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Ground_%28electricity%29">Earth Ground</a></td><td>Used for zero potential reference and electrical shock protection.</td></tr>
<tr><td width="48"><img alt="chassis symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/ground%20chassis.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Ground_%28electricity%29">Chassis Ground</a></td><td>Connected to the chassis of the circuit</td></tr>
<tr><td width="48"><img alt="common digital ground symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/ground%20digital.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Ground_%28electricity%29">Digital / Common Ground</a></td><td></td></tr>
<tr><th colspan="3"><h4><a href="http://www.blogger.com/post-edit.g?blogID=4365676431210399719&postID=2966087797685999035" name="resistor symbols"></a>Resistor Symbols</h4></th></tr>
<tr><td width="48"><img alt="resistor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/resistor.GIF" width="48" /></td><td width="193"><a href="http://www.rapidtables.com/electric/Resistor.htm">Resistor</a> (IEEE)</td><td rowspan="2">Resistor reduces the current flow.</td></tr>
<tr><td width="48"><img alt="resistor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/resistor%20II.GIF" width="48" /></td><td width="193"><a href="http://www.rapidtables.com/electric/Resistor.htm">Resistor</a> (IEC)</td></tr>
<tr><td width="48"><img alt="potentiomemer symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/potentiometer.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Potentiometer">Potentiometer</a> (IEEE)</td><td rowspan="2">Adjustable resistor - has 3 terminals.</td></tr>
<tr><td width="48"><img alt="potentiometer symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/potentiometer%20II.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Potentiometer">Potentiometer</a> (IEC)</td></tr>
<tr><td width="48"><img alt="variable resistor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/variable%20resistor.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Potentiometer">Variable Resistor / Rheostat</a> (IEEE)</td><td rowspan="2">Adjustable resistor - has 2 terminals.</td></tr>
<tr><td width="48"><img alt="variable resistor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/variable_resistor%20II.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Potentiometer">Variable Resistor / Rheostat</a> (IEC)</td></tr>
<tr><th colspan="3"><h4><a href="http://www.blogger.com/post-edit.g?blogID=4365676431210399719&postID=2966087797685999035" name="capacitor symbols"></a>Capacitor Symbols</h4></th></tr>
<tr><td width="48"><img border="0" height="48" src="http://www.rapidtables.com/electric/symbols/capacitor.GIF" width="48" /></td><td width="193"><a href="http://www.rapidtables.com/electric/Capacitor.htm">Capacitor</a></td><td rowspan="2">Capacitor is used to store electric charge. It acts as short circuit with AC and open circuit with DC.</td></tr>
<tr><td width="48"><img alt="capacitor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/capacitor%20II.GIF" width="48" /></td><td width="193"><a href="http://www.rapidtables.com/electric/Capacitor.htm">Capacitor</a></td></tr>
<tr><td width="48"><img alt="polarized capacitor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/capacitor%20polarized.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Capacitor">Polarized Capacitor</a></td><td><a href="http://en.wikipedia.org/wiki/Electrolytic_capacitor">Electrolytic capacitor</a></td></tr>
<tr><td width="48"><img alt="polarized capacitor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/capacitor%20polarized%20II.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Capacitor">Polarized Capacitor</a></td><td><a href="http://en.wikipedia.org/wiki/Electrolytic_capacitor">Electrolytic capacitor</a></td></tr>
<tr><td width="48"><img alt="variable capacitor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/variable%20capacitor.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Variable_capacitor">Variable Capacitor</a></td><td>Adjustable capacitance</td></tr>
<tr><th colspan="3"><h4><a href="http://www.blogger.com/post-edit.g?blogID=4365676431210399719&postID=2966087797685999035" name="inductor symbols"></a>Inductor / Coil Symbols</h4></th></tr>
<tr><td width="48"><img alt="inductor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/inductor.GIF" width="48" /></td><td width="193"><a href="http://www.rapidtables.com/electric/Inductor.htm">Inductor</a></td><td>Coil / solenoid that generates magnetic field</td></tr>
<tr><td width="48"><img alt="iron core inductor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/inductor%20iron.GIF" width="48" /></td><td width="193"><a href="http://www.rapidtables.com/electric/Inductor.htm">Iron Core Inductor</a></td><td>Includes iron </td></tr>
<tr><td width="48"><img alt="variable core inductor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/inductor%20variable.GIF" width="48" /></td><td width="193"><a href="http://www.rapidtables.com/electric/Inductor.htm">Variable Inductor</a></td><td></td></tr>
<tr><th colspan="3"><h4><a href="http://www.blogger.com/post-edit.g?blogID=4365676431210399719&postID=2966087797685999035" name="power supply symbols"></a>Power Supply Symbols</h4></th></tr>
<tr><td width="48"><img alt="voltage source symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/voltage%20source.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Voltage_source">Voltage Source</a></td><td>Generates constant voltage</td></tr>
<tr><td width="48"><img alt="current source symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/current%20source.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Current_source">Current Source</a></td><td>Generates constant current.</td></tr>
<tr><td width="48"><img alt="ac power source symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/AC%20source.GIF" width="48" /></td><td width="193">AC Voltage Source</td><td>AC voltage source</td></tr>
<tr><td width="48"><img alt="generator symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/generator.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Electrical_generator">Generator</a></td><td>Electrical voltage is generated by mechanical rotation of the generator</td></tr>
<tr><td width="48"><img alt="battery cell symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/battery%20cell.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Battery_%28electricity%29">Battery Cell</a></td><td>Generates constant voltage</td></tr>
<tr><td width="48"><img alt="battery symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/battery.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Battery_%28electricity%29">Battery</a></td><td>Generates constant voltage</td></tr>
<tr><td width="48"><img alt="controlled voltage source symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/controlled%20voltage%20source.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Voltage_source">Controlled Voltage Source</a></td><td>Generates voltage as a function of voltage or current of other circuit element.</td></tr>
<tr><td width="48"><img alt="controlled current source symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/controlled%20current%20source.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Current_source">Controlled Current Source</a></td><td>Generates current as a function of voltage or current of other circuit element.</td></tr>
<tr><th colspan="3"><h4><a href="http://www.blogger.com/post-edit.g?blogID=4365676431210399719&postID=2966087797685999035" name="meter symbols"></a>Meter Symbols</h4></th></tr>
<tr><td width="48"><img alt="voltmeter symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/voltmeter.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Voltmeter">Voltmeter</a> </td><td>Measures voltage. Has very high resistance. Connected in parallel.</td></tr>
<tr><td width="48"><img alt="ammeter symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/ammeter.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Ammeter">Ammeter</a></td><td>Measures electric current. Has near zero resistance. Connected serially.</td></tr>
<tr><td width="48"><img alt="ohmmeter symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/ohmmeter.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Ohmmeter">Ohmmeter</a></td><td>Measures resistance</td></tr>
<tr><td width="48"><img alt="wattmeter symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/wattmeter.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Wattmeter">Wattmeter</a></td><td>Measures electric power</td></tr>
<tr><th colspan="3"><h4><a href="http://www.blogger.com/post-edit.g?blogID=4365676431210399719&postID=2966087797685999035" name="lamp light symbols"></a>Lamp / Light Bulb Symbols</h4></th></tr>
<tr><td width="48"><img alt="lamp symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/lamp.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Lamp_%28electrical_component%29">Lamp</a> / light bulb</td><td rowspan="3">Generates light when current flows through</td></tr>
<tr><td width="48"><img alt="lamp symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/lamp2.GIF" width="48" /></td><td width="193">Lamp / light bulb</td></tr>
<tr><td width="48"><img alt="lamp symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/lamp3.GIF" width="48" /></td><td width="193">Lamp / light bulb</td></tr>
<tr><th colspan="3"><h4><a href="http://www.blogger.com/post-edit.g?blogID=4365676431210399719&postID=2966087797685999035" name="diode symbols"></a>Diode / LED Symbols</h4></th></tr>
<tr><td width="48"><img alt="diode symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/diode.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Diode">Diode</a></td><td>Diode allows current flow in one direction only (left to right).</td></tr>
<tr><td width="48"><img alt="zener diode" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/zener%20diode.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Zener_diode">Zener Diode</a></td><td>Allows current flow in one direction, but also can flow in the reverse direction when above breakdown voltage </td></tr>
<tr><td width="48"><img alt="schottky diode symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/schottky%20diode.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Schottky_diode">Schottky Diode</a></td><td>Schottky diode is a diode with low voltage drop</td></tr>
<tr><td width="48"><img alt="varicap diode symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/varicap%20diode.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Varicap">Varactor / Varicap Diode</a></td><td>Variable capacitance diode</td></tr>
<tr><td width="48"><img alt="tunnel diode symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/tunnel_diode.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Tunnel_diode">Tunnel Diode</a></td><td></td></tr>
<tr><td width="48"><img alt="led symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/led.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/LED">Light Emitting Diode (LED)</a></td><td>LED emits light when current flows through</td></tr>
<tr><td width="48"><img alt="photodiode symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/photodiode.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Photodiode">Photodiode</a></td><td>Photodiode allows current flow when exposed to light</td></tr>
<tr><th colspan="3"><h4><a href="http://www.blogger.com/post-edit.g?blogID=4365676431210399719&postID=2966087797685999035" name="transistor symbols"></a>Transistor Symbols</h4></th></tr>
<tr><td width="48"><img alt="npn transistor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/NPN%20transistor.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Bipolar_junction_transistor#NPN">NPN Bipolar Transistor</a></td><td>Allows current flow when high potential at base (middle)</td></tr>
<tr><td width="48"><img alt="pnp transistor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/PNP%20transistor.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Bipolar_junction_transistor#PNP">PNP Bipolar Transistor</a></td><td>Allows current flow when low potential at base (middle)</td></tr>
<tr><td width="48"><img alt="darlington transistor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/Darlington%20transistor.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Darlington_transistor">Darlington Transistor</a></td><td>Made from 2 bipolar transistors. Has total gain of the product of each gain.</td></tr>
<tr><td width="48"><img alt="JFET-N transistor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/JFET-N%20transistor.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/JFET">JFET-N Transistor</a></td><td>N-channel field effect transistor</td></tr>
<tr><td width="48"><img alt="JFET-P transistor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/JFET-P%20transistor.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/JFET">JFET-P Transistor</a></td><td>P-channel field effect transistor</td></tr>
<tr><td width="48"><img alt="nmos transistor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/NMOS%20transistor.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/MOSFET">NMOS Transistor</a></td><td>N-channel MOSFET transistor</td></tr>
<tr><td width="48"><img alt="pmos transistor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/PMOS%20transistor.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/MOSFET">PMOS Transistor</a></td><td>P-channel MOSFET transistor</td></tr>
<tr><th colspan="3"><h4>Misc. Symbols</h4></th></tr>
<tr><td width="48"><img alt="motor symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/motor.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Electric_motor">Motor</a></td><td>Electric motor</td></tr>
<tr><td width="48"><img alt="transformer symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/transformer.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Transformer">Transformer</a></td><td>Change AC voltage from high to low or low to high.</td></tr>
<tr><td width="48"><img border="0" height="48" src="http://www.rapidtables.com/electric/symbols/electric_bell.PNG" width="48" /></td><td width="193">Electric bell</td><td>Rings when activated</td></tr>
<tr><td width="48"><img border="0" height="48" src="http://www.rapidtables.com/electric/symbols/buzzer.PNG" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Buzzer">Buzzer</a></td><td>Produce buzzing sound</td></tr>
<tr><td width="48"><img alt="fuse symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/fuse.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Fuse_%28electrical%29">Fuse</a></td><td rowspan="2">The fuse disconnects when current above threshold. Used to protect circuit from high currents.</td></tr>
<tr><td width="48"><img alt="fuse symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/fuse%20II.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Fuse_%28electrical%29">Fuse</a></td></tr>
<tr><td width="48"><img alt="bus symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/bus.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Electrical_bus">Bus</a></td><td rowspan="3">Contains several wires. Usually for data / address.</td></tr>
<tr><td width="48"><img alt="bus symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/bus%20II.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Electrical_bus">Bus</a></td></tr>
<tr><td width="48"><img alt="bus symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/bus%20III.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Electrical_bus">Bus</a></td></tr>
<tr><td width="48"><img alt="optocoupler symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/optocoupler.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Optocoupler">Optocoupler / Opto-isolator</a></td><td>Optocoupler isolates onnection to other board</td></tr>
<tr><td width="48"><img alt="speaker symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/speaker.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Loudspeaker" target="_blank">Loudspeaker</a></td><td>Converts electrical signal to sound waves</td></tr>
<tr><td width="48"><img alt="microphone symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/microphone.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Microphone" target="_blank">Microphone</a></td><td>Converts sound waves to electrical signal</td></tr>
<tr><td width="48"><img alt="operational amplifier symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/operational%20amplifier.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Operational_amplifier" target="_blank">Operational Amplifier</a></td><td>Amplify input signal</td></tr>
<tr><td width="48"><img alt="schmitt trigger symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/schmitt%20trigger.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Schmitt_trigger" target="_blank">Schmitt Trigger</a></td><td>Operates with hysteresis to reduce noise.</td></tr>
<tr><td width="48"><img border="0" height="48" src="http://www.rapidtables.com/electric/symbols/adc.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Analog-to-digital_converter">Analog-to-digital converter (ADC)</a></td><td>Converts analog signal to digital numbers</td></tr>
<tr><td width="48"><img border="0" height="48" src="http://www.rapidtables.com/electric/symbols/dac.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Digital-to-analog_converter">Digital-to-Analog converter (DAC)</a></td><td>Converts digital numbers to analog signal</td></tr>
<tr><td width="48"><img alt="crystal oscillator symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/oscillator%20crystal.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Crystal_oscillator">Crystal Oscillator</a></td><td>Used to generate precise frequency clock signal </td></tr>
<tr><th colspan="3"><h4><a href="http://www.blogger.com/post-edit.g?blogID=4365676431210399719&postID=2966087797685999035" name="antenna symbols"></a>Antenna Symbols</h4></th></tr>
<tr><td width="48"><img alt="antenna symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/antenna.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Antenna_%28radio%29">Antenna / aerial</a></td><td rowspan="2">Transmits & receives radio waves</td></tr>
<tr><td width="48"><img alt="antenna symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/antenna%20III.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Antenna_%28radio%29">Antenna / aerial</a></td></tr>
<tr><td width="48"><img alt="dipole antenna symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/antenna%20II.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Dipole_antenna">Dipole Antenna</a></td><td>Two wires simple antenna</td></tr>
<tr><th colspan="3"><h4><a href="http://www.blogger.com/post-edit.g?blogID=4365676431210399719&postID=2966087797685999035" name="logic gate symbols"></a>Logic Gates Symbols</h4></th></tr>
<tr><td width="48"><img alt="NOT gate symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/NOT%20gate.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/NOT_gate">NOT Gate (Inverter</a>)</td><td>Outputs 1 when input is 0</td></tr>
<tr><td width="48"><img alt="AND gate symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/AND%20gate.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/AND">AND Gate</a></td><td>Outputs 1 when both inputs are 1.</td></tr>
<tr><td width="48"><img alt="NAND gate symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/NAND%20gate.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/NAND_logic">NAND Gate</a></td><td>Outputs 0 when both inputs are 1. (NOT + AND)</td></tr>
<tr><td width="48"><img alt="OR gate symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/OR%20gate.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/OR_gate">OR Gate</a></td><td>Outputs 1 when any input is 1.</td></tr>
<tr><td width="48"><img alt="NOR gate symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/NOR%20gate.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/NOR_logic">NOR Gate</a></td><td>Outputs 0 when any input is 1. (NOT + OR)</td></tr>
<tr><td width="48"><img alt="XOR gate symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/XOR%20gate.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/XOR_gate">XOR Gate</a></td><td>Outputs 1 when inputs are different. (Exclusive OR)</td></tr>
<tr><td width="48"><img alt="D flip flop symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/D%20flip-flop.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Flip-flop_%28electronics%29#D_flip-flop">D Flip-Flop</a></td><td>Stores one bit of data</td></tr>
<tr><td width="48"><img alt="mux symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/mux%20II.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Multiplexer">Multiplexer / Mux</a> 2 to 1</td><td rowspan="2">Connects the output to  selected input line.</td></tr>
<tr><td width="48"><img alt="mux symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/mux.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Multiplexer">Multiplexer / Mux</a> 4 to 1</td></tr>
<tr><td width="48"><img alt="demux symbol" border="0" height="48" src="http://www.rapidtables.com/electric/symbols/demux.GIF" width="48" /></td><td width="193"><a href="http://en.wikipedia.org/wiki/Multiplexer">Demultiplexer / Demux</a> 1 to 4</td><td>Connects selected output to the input line. </td></tr>
</tbody></table>

Electrical Symbols and Electronic Symbols(1)

Electrical and electronic circuit symbols are used for drawing schematic diagram. please select This item And Copy or Open MS Word and Pas...