Electrical / Electronics
Zener resistor
Calculates the series resistor for a simple Zener diode regulator.
Related calculators
Ohm's law resistance
Calculates resistance from voltage and current in a DC circuit.
DC electrical power
Calculates DC electrical power from voltage and current.
Resistor voltage divider
Calculates output voltage of an ideal two-resistor divider.
LED resistor calculator
Calculates resistance and resistor power for an LED current limiting resistor.
LED series resistor
Calculates a current limiting resistor for multiple LEDs connected in series.
BJT base resistor
Calculates a base resistor for simplified BJT transistor drive.