SMBG4744C/TR13

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Voltage - Zener (Nom) (Vz):	15V
Tolerance:	±2%
Power - Max:	2W
Impedance (Max) (Zzt):	14 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 11.4V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	DO-215AA, SMB Gull Wing
Supplier Device Package:	SMBG (DO-215AA)
Base Part Number:	SMBG4744

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Diodes – Zener – SingleThe SMBG4744C/TR13 has a variety of uses and applications within the world of electronics. The device is a single Zener diode characterized with a breakdown voltage of 4.7 volts, that offers a maximum power dissipation of 400 mW, an operating temperature range between -65°C and +150°C, and a maximum operating current of 1.5 A. This diode is also characterized with a maximum reverse standby current of 20 nA and a Vz tolerance of 5%. The SMBG4744C/TR13finds a number of uses and applications in the electronic world. One primary use of the device is as a controller or reference device. Commonly in the world of electronics, a Zener diode is used as an active device to accurately regulate an applied voltage due to its ability to control the needed current, protection against overvoltage, and operation across a wide temperature rang. This means that the SMBG4744C/TR13 can be used as as a voltage regulator or as a voltage reference device. In addition to voltage regulation, the SMBG4744C/TR13 can find use as a circuit protection device. Zener diodes are commonly used as overvoltage protection devices, ie, the Zener diode will conduct the overload voltage instead of the electronic device connected to it.The SMBG4744C/TR13 operates under the same principles as other diodes, however the breakdown voltage of the diode becomes a constant voltage after the breakdown voltage is reached. This is caused by the Zener effect, which is the phenomenon in which an increase in the electric field strength of a semiconductor causes an increase in the number of free carriers and also reduces the electron-hole recombination rate. The result of this effect is an increase in the electric current, resulting in the diode staying at a constant voltage (the breakdown voltage). This can be seen in lower breakdown voltages such as 1.2V and 3.3V, whereas higher breakdown voltages such as 4.7V or 6.2V are most commonly used for voltage regulation or voltage reference applications. The SMBG4744C/TR13 is a perfect device for applications needing either a voltage regulator or a voltage reference. The diode’s low reverse standby current, wide operating temperature range, and high power dissipation makes it ideal for a variety of applications such as consumer electronics, automotive systems and industrial electronics. Additionally, the SMBG4744C/TR13’s low breakdown voltage and wide Vz tolerance makes it an excellent choice for applications that require an accurate voltage reference. In summary, the SMBG4744C/TR13 is a single Zener diode characterized with a breakdown voltage of 4.7V and a variety of features that make it an ideal device for voltage regulation, voltage reference, and overvoltage protection applications. The device’s wide operating temperature range, low reverse standby current, and high power dissipation makes it suitable for a broad range of consumer, automotive, and industrial applications. The SMBG4744C/TR13 is a great device to consider when an application requires the use of a Zener diode.

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