DZ3S056D0L Discrete Semiconductor Products

DZ3S056D0L: Application Field and Working Principle

DZ3S056D0L is a Zener array device from the family of diodes. It is a three-pin device featuring 56V Zener diode which is divided into four arrays and each array has 12 ohms of resistor with 25mW. It is suitable for stabilizing voltage and clamping the circuit. Hence, it is widely used in electronic circuits for protection, voltage monitoring, and clamping.

Applications

DZ3S056D0L is a transistor type of device usually used as a protection against spike voltages. Due to its capability to provide over-voltage protection, it is highly suitable for automotive applications, where it ensures protection against voltage spikes that might cause damage to the set.It is also very useful in dynamical application like transformers, relays and motors.

Furthermore, DZ3S056D0L is used in the device interface which is used to detect signals or conditions outside of the main device. These external signals are monitored and protected from external overvoltages. Similarly, it is also used to balance and stabilize the supply rail in order to prevent transient overvoltages from harming the system. Additionally, it is sometimes used for current limitation and for isolating high voltage from circuit.

Working Principle

DZ3S056D0L is a zener array device which means that it combines zener diodes and resistors together to control the current. The thing which makes it different from a normal diode is that it functions even when the voltage reverses. The way how it works is that when the reverse voltage reaches the breakdown voltage of the diode, the diode starts to conduct current. This current is then limited by the resistor which is placed parallel to the diode.

When the voltage is reversed, the current flow is limited to the zener diode and the resistor. This current is then limited by the resistor and the zener diode starts to breakdown again. The zener diode then absorbs the excess current and the resistor limits the current to the desired level. This also gradually reduces the voltage to the breakdown voltage of the diode.

In conclusion, the main purpose of DZ3S056D0L is to provide protection against overvoltage, monitor and protect signals and conditions, balance the supply rail and limit the current. It is widely used in various electronic devices due to the reliable protection which it provides, and its relatively low price.