AAmpere (AC rms or DC)
aAmpere (peak)
A/DAnalog to digital
ACAlternating current
AC/DCAlternating current or direct current
ADCAnalog-to-digital converter
AFAudio frequency
AhAmpere hour
AMAmplitude modulation
AWGAmerican wire gauge
BTransistor Base electrode
BMagnetizing Flux density
BCDBinary coded decimal
BJTBipolar junction transistor
BVBreakdown voltage
BVCEOBreakdown voltage, collector-to-emitter junction reverse biased (base open)
BVCESBreakdown voltage, collector-to-emitter junction reverse biased (base shorted)
BVCOBBreakdown voltage, collector-to-base junction reverse biased (emitter open)
BWBandwidth
cCenti (10-2)
CCapacitance or capacitor
CTransistor collector electrode
C (Q)Coulomb
CBCommon base configuration
CCCommon collector
CECommon emitter
CLLoad capacitance
COOutput capacitance
dDeci (10-1)
D/ADigital to analog
DCDirect current
DIPDual in-line package
ETransistor emitter electrode
EHFExtremely high frequency
EHVExtra high voltage
ELFExtremely low frequency
EMFElectromotive force
EMIElectromagnetic interference
FFarad
fFrequency
fabCommon base small-signal cutoff frequency
faeCommon emitter small-signal utoff frequency
FETField effect transistor
FFFlip Flop
FMFrequency modulation
foscMaximum frequency of oscillation
frFrequency at resonance
GConductance
GGiga (109 )
gmSmall-signal transconductance
gM, gFEStatic or DC transconductance
GM, GFELarge-signal transconductance
HHenry
HMagnetic field intensity, Magnetizing flux
hhecto (102)
HFHigh frequency
hfbCommon base small signal forward current transfer-ratio
hfeCommon emitter small-signal forward current transfer-ratio (base input)
hFECommon emitter DC forward current transfer-ratio, current gain (IC/IB)
hrbCommon base small signal reverse transfer voltage ratio (emitter input)
hrcCommon collector small signal reverse transfer voltage ratio (base input)
hreCommon emitter small signal reverse transfer voltage ratio (base input)
HzHertz
ICurrent
iInstantaneous current
I/OInput/output
IBBase current
ICIntegrated circuit
ICCollector current
ICBO, ICOCollector cutoff current (emitter open)
ICEOCollector cutoff current (base open)
ICERCollector cutoff current (specified resistance base-emitter)
IEEmitter current
IEBOEmitter cutoff current (collector open)
IeffEffective current
IFForward current (DC)
iFrForward recovery current (specified instantaneous value)
IOOutput current (DC)
IRInfrared
IRReverse current (DC)
iRReverse current (peak)
iRrReverse recovery current (specified instantaneous value)
ISSecondary current
isurgeSurge current
IZZener current
IZKZener knee current
IZMZener maximum current
IZTZener test current
JFETJunction field effect transistor
KCoefficient of coupling
kkilo (103)
kHzKilohertz
kWhKilowatt-hour
LCoil, inductance
LCInductance-capacitance
LCDLiquid crystal display
LCRInductance-capacitance-resistance
LDRLight-dependent resistor
LEDLight emitting diode
LFLow frequency
LMMutual inductance
LNALow noise amplifier
LSILarge scale integration
µMicro (10-6 )
mMilli (10-3 )
MMega (106)
MMutual conductance
MCUMicrocontroller
MFMedium frequency
MHzMegahertz
MIMutual inductance
mmfMagnetomotive force
MOSMetal oxide semiconductor
MOSFETMetal oxide semiconductor field effect transistor
MPUMicroprocessor unit
NNumber of turns of inductor/transformer
nNano (10-9)
NCNormally closed
NCNo connection
NONormally open
NPNNegative-positive-negative
OP AMPOperational amplifier
pPico (10-12)
PPower
pInstantaneous power
PALProgrammable Array Logic
PAMPulse amplitude modulation
PapApparent power
PavAverage power
PCBPrinted circuit board
PCMPulse-code modulation
PdPower dissipation of device (average)
PDMPulse-duration modulation
PIVPeak inverse voltage
PLDProgrammable Logic Device
PLLPhase locked loop
PMPhase modulation
PNPPositive-negative-positive
POTPotentiometer
P-PPeak to peak
PPMPulse-position modulation
PRFPulse repetition frequency
PRTPulse repetition time
PWMPulse width modulation
QCharge, also quality
qInstantaneous charge
QTransistor
RResistor
RCResistance-capacitance
rectRectifier
refReference
RFRadio frequencies
RFIRadio frequency interference
RLLoad resistor
RLCResistance-capacitance-inductance
RMSRoot mean square
rpmRevolutions per minute
SCRSilicon controlled rectifier
SHFSuper high frequency
SIPSingle in-line package
SMCSurface Mount Components
SMDSurface Mount Devices
SMTSurface Mount Technology
SNRSignal-to-noise ratio
SOSmall Outline
SODSmall Outline Diode
SOICSmall Outline Integrated Circuit
SOTSmall Outline Transistor
SPDTSingle pole double throw
SWShort wave
TTera (1012)
TTransformer
tTime
T, tempTemperature
TAAmbient Temperature
TCTemperature, case
TCTime constant, also temperature coefficient
tdPulse delay time
tfPulse fall time
tfrForward recovery time
TjJunction temperature
tPPulse time
trPulse rise time
tsPulse storage time
TTLTransistor-transistor logic
UHFUltra high frequency
UHVUltra high voltage
UJTUnijunction transistor
UVUltraviolet
VVolt (DC)
vVolt (peak), instantaneous voltage
VAVolt ampere
Va-cVolt (AC)
VBBBase voltage (DC) supply
VBEBase to emitter voltage (DC)
VCCCollector voltage (DC) supply
VCECollector to emitter voltage (DC)
VCEsatCollector to emitter saturation voltage
VEEEmitter voltage (DC) supply
VFForward voltage drop
VCOVoltage controlled oscillator
VHFVery high frequency
VinInput voltage
VLFVery low frequency
Vm, VmaxMaximum voltage
VO, VoutOutput voltage (DC)
VpPrimary voltage
VRReverse voltage (DC)
VrReverse voltage (peak)
WWatts (Max, Average, or rms)
wWatts (peak)
XCCapacitive reactance
XLInductive reactance
YAdmittance
ZImpedance
ZinInput impedance
ZoOutput impedance
ZpPrimary impedance
ZsSecondary impedance