DZ4J300K0R

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Configuration:	2 Independent
Voltage - Zener (Nom) (Vz):	30V
Tolerance:	±5%
Power - Max:	200mW
Impedance (Max) (Zzt):	160 Ohms
Current - Reverse Leakage @ Vr:	50nA @ 23V
Voltage - Forward (Vf) (Max) @ If:	1V @ 10mA
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	4-SMD, Flat Leads
Supplier Device Package:	SMini4-F3-B

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Diodes - Zener - Arrays: DZ4J30K0R Application Field and Working Principle

Diodes - Zener - Arrays, also referred to as DZAs, are a type of semiconductor devices used in electronics applications. Specifically, they are designed to control or regulate voltage, or manage multiple voltage sources. The device most often used in this function is the DZ4J30K0R, which is a field-effect diode array package (FEDAP) produced by Diodes Incorporated.The DZ4J30K0R is a four-channel array of 30V N-channel MOSFETs. Each device has its own polarity, which is denoted by the "+" and "-" on the respective pinouts. The device is packaged with a UL flammability rating of 94V-0, indicating its capability to withstand high temperatures and power surges. The zener diodes used in the DZ4J30K0R package have a breakdown voltage of 30 volts, which allows them to control the voltage level in a circuit. The primary application field of the DZ4J30K0R is in automotive, audio/video, and telecom applications. The device is primarily used in low-side voltage regulation applications, such as audio/video applications, or to provide a low-side MOSFET switch in automotive circuits. As a low-side voltage regulator, it is beneficial in applications where the incoming voltage is higher than the required voltage level. The device is also used in telecom applications where reliable supply voltage must always be maintained. The working principle of the DZ4J30K0R is straight-forward. The device uses four series-connected zener diodes to control the voltage levels in a circuit. When the input voltage is higher than 30 Volts, the MOSFETs will close and the zener diodes are turned on, allowing the current to flow in the opposite direction and cancel the excess voltage. On the other hand, when the input voltage is lower than 30 Volts, the MOSFETs will open, and the zener diodes will turn off, allowing the current to flow in the same direction as the input voltage, thus amplifying it. In addition to its voltage regulation capabilities, the DZ4J30K0R can also be used as a low-side switch. When the voltage at the MOSFETs\' gate is high, the MOSFET will conduct current and allow the flow of power to the load. When the voltage at the MOSFETs\' gate falls low, the MOSFETs will switch off and the power supply to the load will be turned off. In this way, the device can be used to switch the load on or off, allowing for precise control over circuits. All in all, the DZ4J30K0R is a highly versatile device that can be used in a variety of applications. Its primary use is as a voltage regulator, particularly in audio/video and automotive circuits due to its ability to accurately control voltage levels. It can also be used as a low-side switch to precisely control the power supply to circuits. The device is UL flammability rated, making it particularly suitable for use in safety-critical applications.

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