Suppling 5v, 0.02 A (20 mA)
423
Choosing power supply, how to get the voltage and current ratings?
158149
Arduino with 5v Relay
36923
Which method or component is best to regulate 42 to 3.3 V?
156265
Use of 100K ohm resistor along with 0.1uF capacitor?
88894
Why does a 12V 2A adapter measure only 0.358A on a multimeter?
32052
how to reduce DC voltage using resistors?
151478
Calculating resistor for LEDs with different Forward Voltages in series
48777
Resistor requirement for 3.3v
151190
Line level voltage to drive LED display
124910
Is a current-limiting resistor required for LEDs if the forward voltage and supply voltage are equal?
32346
How to get 20 V from a USB-C charger?
9182
Driving LED with PIC 5V
17034
Calculating mAh needed to run a device
142745
Low Voltage AC Smoothing Capacitor Calculation
10649
Adding mAh when wiring battery cells in series?
82622
Calculating voltage in a simple circuit
26877
How to measure supply currents ranging from 1μA to 10mA?