Electrical Engineering Toolbox
p = pico, n = nano, u/µ = micro, m = milli, k = kilo, M = mega, G = giga
Resistor Calculator
Input
R
Ω
I
A
θ
°C/W
Output
V
V
P
W
T
°C @ Ta = 25 °C
Resistor Divider Calculator
V1
V
V2
V
V3
GND (0 V)
R1
Ω
R2
Ω
I
A
P (R1)
W
P (R2)
W
LED calculator
Input
Vs
V
Vf
V
If
A
Output
R
Ω
P (R)
W
P (LED)
W
Trace Calculator
Input
Trace Width
mm
Trace Width
mil
Trace Length
mm
Trace Length
mil
Cu Thickness
µm
Cu Thickness
Cu oz/ft
2
Output
Limit @ Ta + 25°C
Trace Resistance
Ω
External Trace Max Current
A
Internal Trace Max Current
A
External Trace Power Loss
W
Internal Trace Power Loss
W
Timer Calculator
Input
Clock Frequency
Hz
Clock Divider
Prescaler
Counts
Output
Tick Frequency
Hz
Tick Period
s
Interrupt Frequency
Hz
Interrupt Period
s
