source:Other information release time:2023-05-19 Hits: Popular:PCB Assembly company
"ZD" plus numbers in the circuit is expressed in the circuit.
1. Principles of voltage voltage stabilization: The characteristics of the stabilization diode are that after the breakdown, the voltage at both ends is basically unchanged.
In this way, when the regulatory tube is connected to the circuit, if the power supply voltage fluctuates, or other reasons, the electricity in each point in the circuit
When the voltage is changed, the voltage at both ends of the load will basically remain unchanged.
2. Failure characteristics: The failure of the stabilization diode is mainly manifested in the opening of the road, short circuit and stabilization value. Among these 3 faults,
The previous type of failure showed a rise in power supply voltage; the latter two faults manifested that the power supply voltage turned to zero or output unstable.
The model and stabilization value of the commonly used stabilization diode are as follows:
Type number 1N4728 1N4729 1N4730 1N4732 1N4733 1N4735 1N4744 1N4750 1N4751
1N4761
Stable voltage value 3.3V 3.6V 3.9V 4.7V 5.6V 6.2V 15V 27V 30V 75V
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