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Electronics is the branch of science that deals with the study of flow and control of electrons (electricity)Electronics Dictionary and the study of their behavior and effects in vacuums, gases, and semiconductors, and with devices using such electrons. This control of electrons is accomplished by devices that resist, carry, select, steer, switch, store, manipulate, and exploit the electron.

Here are the Most Commonly Terms and definitions used in Electronics and Electronics Engineering:

A (amp)- Ampere                
AC/DC-
Alternating current or direct current            
ADC -Analog-to-digital converter
AFT -Automatic fine tuning                  
AFC -Automatic flow controller, used in controlling the flow of gasses under pressure into a vacuum system
AGC-Automatic gain control      

AM/FM -Amplitude modulation or Frequency modulation   
AMM
-Analog Multimeter

antilog - Antilogarithm

Ap -Power gain
Apc-
Automatic phase control
Av -Voltage gain

AVC
-Automatic volume control  
AWG
-American wire gauge
AC- Alternating current
A/D-
Analog to digital
AF-
Audio frequency

AFC -Automatic frequency control
Ah -Ampere hour
AM-Amplitude modulation
Ai -Current gain
c -Centi (10-2)
 


 
C -Capacitance or capacitor       
CAD
-Computer aided design

CAM -Computer aided manufacture    
CATV
-Cable TV

CB -Common base configuration
CB-
Citizen's band
CC -Common collector                
CE-
Common emitter

cm
–Centimeter

cmil -Circular mil

CPU- Central processing unit      
C (Q)-
Coulomb
CR cr -Junction diode                 
CRO-
Cathode ray Oscilloscope
CRT -Cathode ray tube
CT -
Total capacitance
cw
-Continuous transmission
E DC- or Erms Difference in potential

 

e -Instantaneous difference in potential 
ECG-
Electrocardiogram

ECL -Emitter coupled logic         
EHF-
Extremely high frequency

EHV- Extra high voltage              
ELF- Extremely low frequency

EMF-Electromotive force            
EMI-
Electromagnetic interference

EW-
Electronic warfare
G-
Gravitational force
G
-Conductance

G-
Giga (109 )
JFET-
Junction field effedt transistor
L-
Coil, inductance
LC-
Inductance-capacitance
LCD-
Liquid crystal display

L-C-R
-Inductance-capacitance-resistance
LDR-
Light-dependent resistor
LED-
Light emitting diode

LF-
Low frequency
LM-
Mutual inductance

LNA-
Low noise amplifier
LO
-Local oscillator

LSI-
Large scale integration
LT -
Total inductance

N
-Number of turns in an inductor
N-
Revolutions per minute
n-
Nano (10-9)

N-
Negative
NA-
Nanoampere

NC-
Normally closed
NC
No- connection
NEG, neg –Negative
NF
-Nanofarad

nH
-Nanohenry
nm-
Nanometer

NO-
Normally open
NPN-
Negative-positive-negative

Ns-
Nanosecond
NW-
Nanowatt
OP AMP- Operational amplifier
R-
Potentiometer
R-
Resistance

RAM-
Random access memory
RC-
Resistance-capacitance, also Radio controlled

Rcvr-
Receiver
Rect-
Rectifier

Ref-
Reference
Rf-
Radio frequencies

RF-
Radio frequencies
RFI-
Radio frequency interference

RL-
Load resistor
RLC-
Resistance-capacitance-inductance
RMS, rms- Root mean square
ROM-
Read only memory

Rpm-
Revolutions per minute
T-
Tera (1012)
T
-Torque
T
-Transformer

t-
Time in seconds
TC-
Time constant, also temperature coefficient

TE-
Transverse  electric
Temp-
Temperature

THz-Terahertz
TM-
Transverse magnetic

TR-
Transmit-receive
TTL-
Transistor-transistor logic
TWT-
Travelling wave tube
TV - Television

W
–Watt
XC
-Capacitive reactance

XL
-Inductive reactance
Y
-Admittance

Z
–Impedance
Zin
-Input impedance

Zo
-Output impedance
Zp
-Primary impedance

Zs
-Secondary impedance
ZT
-Total impedance

B
-Flux density
BCD -Binary coded decimal

bfo -Beat frequency oscillator
BJT -Bipolar junction transistor

BW-Bandwidth
d-
Deci (10-1)

D/A or D-A-Digital to analog    
DC-
Direct current

DIP-
Dual in-line package            
DMM
-Digital Multimeter

DPDT -Double pole double throw
DTL-
Diode transistor logic

DVM-
Digital voltmeter
 – Frequency
FET-Field effect transistor

FF-Flip Flop    
fil
-Filament
FM- Frequency modulation    
f
r
-Frequency at resonance

fsk
-frequency-shift keying   
FSD-
Full scale deflection

H-
Henry
H-
Magnetic field intensity
H
-Magnetizing flux
h- hecto (102 )
h -Hybrid

HF- High frequency
hp -Horsepower

Hz
-Hertz
I
-Current
i -Instantaneous current
IB -DC Base current
IC -
DC Collector current
IC- Integrated circuit

Ie-
Total emitter current
Ieff- Effective current

IF-
Intermediate frequency
I
max -
Maximum current

I
min -
Minimum current
I/O-
Input/output
IR- Infrared
IR-
Resistor current

IS -
Secondary current
I
T -
Total current

K-
Coefficient of coupling
k-
Kilo (103 )

kHz-
Kilohertz
kV- Kilovolt

kVA-
Kilovoltampere
kW-
Kilowatt

kWh-
Kilowatt-hour
M
-Mega (106 )
M
-Mutual conductance

MI
-Mutual inductance
m-
Milli (10-3 )

mA-
Milliampere
mag-
Magnetron
max –Maximum
MF- Medium frequency

MH-
Millihenry
MHz
-Megahertz

min
–Minimum
mm-
Millimeter
mmf -Magnetomotive force
mW-
Milliwatt

MOS
-Metal oxide semiconductor
MOSFET
-Metal oxide semiconductor field effect transistor
MPU-
Microprocessor unit
MSI-
Medium scale integrated circuit
mV
–Millivolt
P-
Pico (10-12)
P-
Power
p-
Instantaneous power

P-
Positive, also peak
PA-
Public address or power amplifier

PA-
Picoampere
PAL-
Programmable Array Logic
PAM, pam- Pulse amplitude modulation
Pap-
Apparent power

Pav-
Average power
PCB-
Printed circuit board

PCM, pcm-
Pulse-code modulation
PDM-
Pulse-duration modulation

PF-
Picofarad
PLD-
Programmable Logic Device

PLL-
Phase locked loop
PM-
Phase modulation, also Permanent magnet

PNP-
Positive-negative-positive
POT, pot-
Potentiometer

P-P-
Peak to peak
PPM--
Pulse-position modulation

PRF-
Pulse repetition frequency
PRT-
Pulse repetition time

Pw-
Pulse width
PWM, pwm-
Pulse width modulation
Q-Charge, also quality
q-Instantaneous charge

SCR-
Silicon controlled rectifier
SHF-Super high frequency
SIP-
Single in-line package

SNR-
Signal-to-noise ratio
SPDT-
Single pole double throw

sq cm-
Square centimeter
SSB-
Single sideband

SW-
Short wave
SWR-Standing-wave ratio
SYNC, sync-Synchronous
UHF- Ultra high frequency
UHV-
Ultra high voltage

UJT-
Unijunction transistor
UV-
Ultraviolet

V-
Vacuum tube
V, v-
Volt

v-
Instantaneous voltage
VA-
Volt ampere

Vav-
Voltage (average value)
VBE-
DC voltage base to emitter

Vc-
Capacitive voltage
VCE-
DC voltage collector to emitter

VCO-
Voltage controlled oscillator 
VHF-
Very high frequency

VIn -
Input voltage
VL- Inductive voltage

VLF-
Very low frequency
V
m, Vmax
-Maximum voltage

VOM-
Volt ohm milliameter
 Vout -Output voltage

V
p -
Primary voltage
VS-Source voltage

V
SWR-
Voltage standing wave ratio
V
T-
Total voltage

Home

Basics of Electronics History of Electronics Electronics Terms Soldering in Electronics Electronic Circuits

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Electronic Components Electronic / Electrical Materials & Consumables Consumer Electronics Electronic Companies PCB
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