Symbols & abbreviations used in electrical & electronic work



A = Ampere
mA = Milliampere
µA = Microampere
Ah = Ampere-hour (or "amp-hour")
mAh = Milliampere-hour (or "milliamp-hour")
cm = Centimeter
mm = Millimeter
nm = Nanometer (visible light spans a range of ~380nm to ~740nm)
cp = Candlepower
dc = Direct current
ac = Alternating current
F = Farad
µF = Microfarad
fc = Footcandle
ft = Foot
H = Henry (used with inductor coils)
J = Joule
K = Kelvin (use without degree symbol)
µ = Micro ohm (or "Microohm")
m = Milliohm
= Ohm
k = Kilohm
M = Megohm
mcd = Millicandelas (The standard intensity measurement unit for LEDs)
Wavelength = Greek lambda -- used to describe wavelength
lm/ft² = Lumen per square foot (foot-candles)
lm/m² = Lumen per square meter (lux)
lm•s = Lumen second
lm/W = Lumen per watt
lx = Lux
MW = Megawatt
kW = Kilowatt
W = Watt
mW = Milliwatt
µW = Microwatt
scp = Spherical candlepower
MV = Megavolt
kV = Kilovolt
V = Volt
mV = Millivolt
µV = Microvolt
Wh = Watthour
mWh = Milliwatthour




List courtesy of scott.cr from Candlepower Forums.
Last updated 05-20-10 (Added a symbol).




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