Studied by 11 people
Wire
Conductor of electrical current
Connected wires
Not connected wires
SPST switch
Disconnects current when open
SPDT switch
Selects between two connections
Pushbutton Switch (N.O)
Momentary switch - normally closed
Pushbutton switch (N.C)
Momentary switch - normally closed
DIP switch
is used for onboard configuration
SPST relay
Relay open / close connection by an electromagnet
SPDT relay
Relay open / close connection by an electromagnet
Jumper
Close connection by jumper insertion on pins
Solder bridge
Solder to close connection
Earth ground
Used for zero potential reference and electrical shock protection
Chassis Ground
Connected to the chassis of the circuit
Digital / Common Ground
Resistor
Reduces the current flow - IEEE
Resistor
IEC
Potentiometer
Adjustable resistor - has 3 terminals. IEEE
Potentiometer
Adjustable resistor - has 3 terminals. IEC
Variable resistor / Rheostat
Adjustable resistor - has 2 terminals. IEEE
Variable resistor / Rheostat
Adjustable resistor - has 2 terminals. IEC
Trimmer resistor
Preset resistor
Thermistor
Thermal resistor - change resistance when temperature changes
Photoresistor / light dependent resistor (LDR)
Change resistance with light intensity
Capacitor
Used to store electric charge. Acts as short circuit with AC and open circuit with DC
Capacitor
Used to store electric charge. Acts as short circuit with AC and open circuit with DC
Polarized capacitor
electrolytic capacitor
Polarized capacitor
Electrolytic capacitor
Variable capacitor
Adjustable capacitance
Inductor
Coil / solenoid that generates magnetic field
Iron core inductor
Includes iron
Variable inductor
Voltage source
Generate constant voltage
Current source
Generates constant current
AC voltage source
Generator
Electrical voltage is generated by mechanical rotation of the generator
Battery cell
Generates constant voltage
Battery
Generates constant voltage
Controlled voltage source
Generates voltage as a function of voltage or current of other circuit element.
Controlled current source
Generates current as a function of voltage or current of other circuit element
Voltmeter
Measures voltage. Has very high resistance. Connected in parallel
Ammeter
Measures current. Has near zero resistance. Connected serially
Ohmmeter
Measures resistance
Wattmeter
Measures electric power
Lamp / light bulb
Generates light when current flows through
Lamp / light bulb
Generates light when current flows through
Lamp / light bulb
Generates light when current flows through
Diode
Allow current flow in on direction only - left (anode) to right (cathode)
Zener diode
Allows current flow in one direction, but also can flow in the reverse direction when above breakdown voltage
Schottky diode
Is a diode with low voltage drop
Varactor / varicap diode
Variable capacitance diode
Tunnel diode
Light emitting diode
Emits light when current flows though
Photodiode
Photodiode allows current flow when exposed to light
NPN Bipolar transistor
Allows current flow when low potential at base (middle)
PNP Bipolar transistor
Allows current flow when low potential at base (middle)
Darlington transistor
Made from 2 bipolar transistors. Has total gain of the product of each gain.
JFET-N transistor
N-channel field effect transistor
JFET-P transistor
P-channel field effect transistor
NMOS transistor
N-channel MOSFET transistor
PMOS transistor
P-channel MOSFET transistor
Motor
Electric motor
Transformer
Change AC voltage from high to low or vice versa
Electric bell
Rings when activated
Buzzer
Produces buzzing sound
Fuse
Disconnects when current above threshold. Used to protect circuit from high currents
Fuse
Disconnects when current above threshold. Used to protect circuit from high currents
Bus
Contains several wires. Usually for data address
Bus
Contains several wires. Usually for data address
Bus
Contains several wires. Usually for data address
Optocoupler / opto-isolator
Isolates connection to other board
Loudspeaker
Converts electrical signal to sound waves
Microphone
Converts sound waves to electrical signal
Operational amplifier
Amplify input signal
Schmitt trigger
Operates with hysteresis to reduce noise
Analog to digital converter (ADC)
Converts analog signal to digital numbers
Digital to analog converter (DAC)
Converts digital numbers to analog signal
Crystal oscillator
Used to generate precise frequency clock signal
Antenna
Transmits and receives radio waves
Antenna
Transmits and receives radio waves
Dipole antenna
Two wires simple antenna
Not gate (inverter)
Outputs 1 when input is 0
And gate
Output 1 when both inputs are 1
NAND gate
Outputs 0 when both inputs are 1 (not + and )
Or gate
Output 1 when any input is 1
Nor gate
Output 0 when any input is 1. (Not + or)
XOR gate
Output 1 when inputs are different (exclusive or)
D flip-flop
Stores one bit of data
Multiplexer / mux 2 to 1
Connects the output to selected input line
Multiplexer / mux 4 to 1
Connects the output to selected input line
Demultiplexer / demux 1 to 4
Connects selected output to the input line
