5 calculators in this category
- LED Series Resistor CalculatorIEC 60063 preferred resistor values (E6/E12/E24)Give this calculator your supply voltage, the LED's forward voltage and the current you want through it, and it returns the…
- Op-Amp Gain CalculatorIdeal op-amp model with finite gain-bandwidth productPick a topology, enter the two resistors, and this calculator returns the closed-loop gain in volts per volt and in decibels…
- 555 Timer CalculatorTI xx555 datasheet timing equationsEnter R1, R2 and the timing capacitor and this calculator returns the astable output frequency, period, high and low times and…
- PCB Trace Width CalculatorIPC-2221B, Generic Standard on Printed Board DesignA PCB trace is a resistor you did not intend to design, and its width is set by how much temperature rise you are willing to…
- dBm to Watts CalculatordBm is a power level expressed on a logarithmic scale referenced to one milliwatt, and it exists because RF systems span an…
Which one do you need?
- LED Series Resistor Calculator
- Calculate the current-limiting resistor for one or more LEDs: exact ohms, the nearest E24 standard value, actual LED current and the resistor wattage you need.
- Op-Amp Gain Calculator
- Calculate op-amp closed-loop gain in V/V and dB, output voltage and bandwidth for inverting, non-inverting and difference stages, or solve for the Rf you need.
- 555 Timer Calculator
- Calculate 555 astable frequency, period, duty cycle and monostable pulse width from R1, R2 and C, or solve for the resistor or capacitor you need.
- PCB Trace Width Calculator
- Size a PCB trace for current and temperature rise using the IPC-2221 curve fit, and get cross-section, trace resistance, voltage drop and power dissipated.
- dBm to Watts Calculator
- Convert RF power between dBm, dBW, watts, milliwatts and microwatts, and get the equivalent RMS and peak-to-peak voltage into 50, 75 or any impedance.