What is the voltage of 1n4148 Zener diode?
What is the voltage of 1n4148 Zener diode?
1N4148 Zener Diode
| Brand | NXP / Philips / Goodark / Nexperia |
|---|---|
| Usage/Application | Electronic |
| Repetitive Peak Reverse Voltage | Max. 100 V |
| High Switching Speed | Max. 4 ns |
| Minimum Order Quantity | 10000 Piece |
What does a 12v Zener diode do?
Zener Diodes can be used to produce a stabilised voltage output with low ripple under varying load current conditions. By passing a small current through the diode from a voltage source, via a suitable current limiting resistor (RS), the zener diode will conduct sufficient current to maintain a voltage drop of Vout.
What is 3v3 Zener diode?
These 3.3V Zener diodes are well suited for protection on 3.3V circuits like those found on the Raspberry Pi. A Zener diode works like a conventional diode up until the point you hit the breakdown voltage (the point at which the diode can no longer “hold back” the current trying to flow backwards in your circuit).
Can I use Zener diode to reduce voltage?
A Zener diode’s design has the special property of reducing a reverse voltage to a specified value. This makes Zener diodes good, low-cost voltage regulators. To use one in a circuit, you calculate a resistor value, then connect the resistor and Zener across the voltage you want to regulate.
How do I choose a Zener diode?
When choosing the Zener diode voltage, it should be remembered that the emitter voltage will be lower than the Zener voltage by the amount of the base-emitter voltage – about 0.6 volts for a silicon transistor.
Can current flow through a zener diode in both directions?
A Zener diode is a silicon semiconductor device that permits current to flow in either a forward or reverse direction.
How many amps can a zener diode handle?
around 5 to 10 mA
The current, IZM, of a Zener diode is the maximum current that can flow through a Zener diode at its rated voltage, VZ. Typically there is also a minimum current required for the operation of the diode. As a rough rule of thumb, this can be around 5 to 10 mA for a typical leaded 400 mW device.
What is the maximum zener current?
The maximum current is calculated by dividing the power rating by the Zener voltage: I=P/V = 3W/12V = 0.25A. In this case, the datasheet specifies 250 mA as the maximum current, so the calculation wasn’t necessary.