GLL4742-E3/97

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	12V
Tolerance:	±10%
Power - Max:	1W
Impedance (Max) (Zzt):	9 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 9.1V
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	DO-213AB, MELF
Supplier Device Package:	MELF DO-213AB

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GLL4742-E3/97 application field and working principleThe GLL4742-E3/97 is a 3.0-volt 500 mW surface-mount Zener diode rated for operating temperature range of -55 to + 125 °C. It belongs to a family of Zener diodes that are widely used in various applications such as over-voltage protection, voltage regulation, and clamping. This diode is characterized by high power dissipation, low forward voltage drop and excellent temperature stability.As a Zener diode, the GLL4742-E3/97 is a semiconductor device with a p-n junction that conducts current in both the forward and reverse direction, to be used as a voltage regulator. In the forward biased mode, the diode acts as a normal rectifying diode passing current when the voltage across the diode exceeds its forward voltage drop (VF). In the reverse biased mode, the diode conducts current when the reverse voltage above the breakdown voltage (VZ) exceeds the voltage drop across its PN junction. As an over-voltage protection device, the GLL4742-E3/97 can protect electronic components from damage caused by high voltage transients that may occur in power supplies and data lines.The GLL4742-E3/97 has a relatively low reverse leakage current, reduced thermal shock, superior recovery time and industry-leading power dissipation, making it suitable for high temperature and high speed applications. Its small size and low profiles make it suitable for use in circuit boards and other electronic devices with tight spacing requirements.In addition, the GLL4742-E3/97 is also used for voltage clamping, where it serves to limit the voltage at a certain level in order to protect other components from voltage spikes. This feature is useful in applications where the supply voltage tends to fluctuate or are subject to high voltage transients.Finally, the diode also finds application as a voltage regulator, where it is used to maintain a constant voltage output. By using the same device to regulate both voltage and current, the GLL4742-E3/97 offers designers a cost-efficient solution for applications that require precise voltage regulation.To sum it up, the GLL4742-E3/97 is a versatile and reliable Zener diode that is suitable for a wide range of applications. Its enhanced features, performance and temperature ratings make it an excellent choice for both high-power and high-speed applications. It can also be used in voltage regulation, voltage clamping and over-voltage protection in order to provide reliable protection from external transients. All in all, it is an ideal solution for both commercial and industrial applications.

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