SMAJ4744A-TP Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	15V
Tolerance:	±5%
Power - Max:	1W
Impedance (Max) (Zzt):	14 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 11.4V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 100mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	DO-214AC, SMA
Supplier Device Package:	DO-214AC (SMA)
Base Part Number:	SMAJ4744

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SMAJ4744A-TP Application Field and Working PrincipleDiodes are an essential component in a wide variety of electronic devices and circuits. Zener diodes are specialized diodes with a reference voltage built within their component structure which differentiates them from regular diodes. In certain circuits and systems, it is necessary to maintain a constant reference voltage regardless of any changes applied to other components and parameters in the system. The SMAJ4744A-TP is a perfect example of a zener diode as it has a reference voltage built into its structural composition.The SMAJ4744A-TP is a Surface Mount Technology (SMT) single zener diode with a working voltage of 4.7 volts, a power rating of 0.5 Watts, and a breakdown Voltage of 4.7 ± 0.5 Volts. It is built on a 500-mils SMAJ package, with a maximum operating peak reverse voltage of 6.5 Volts and a maximum reverse leakage current of 0.5 milli-Amps (mA) at both ambient and maximum operating temperature. It has a maximum operating junction temperature range of -65°C to +150°C and a storage temperature range of -65°C to +150°C. Some of the features of the SMAJ4744A-TP Zener diode are its low cost, hermetically sealed SMT package, and a glass passivation that helps prevent possible damage from moisture and dust.The SMAJ4744A-TP Zener diode’s main purpose is to regulate the voltage in electronic circuits and systems, such as systems that utilize amplifiers and rectifiers. When a voltage is applied to the diode, electrons move from the anode and hyper-active electrons flow from the cathode to the anode, causing a current to flow through the circuit. This current will be constant regardless of the changes applied to other components and parameters in the circuit. In addition, once the input voltage applied to the diode exceeds the diode’s breakdown voltage, the current will no longer be limited but rather will be diverted through the diode, thus maintaining the voltage across the diode at a constant level.The SMAJ4744A-TP Zener diode is used for various applications including over-voltage protection, measurement, monitoring, signal conditioning, and clamping. It is also used in various digital and analog circuits for providing a stable reference voltage. Additionally, it can be used in power supply circuits for regulating the base voltage or current. Furthermore, it can be used in a wide range of automotive and communications systems such as LEDs and microprocessors.The SMAJ4744A-TP Zener diode is a small and compact device that is relatively easy to install and use in circuits and systems. The device is also designed to be robust and reliable, making it suitable for use in high-stress environments. Despite its small size, it is highly efficient and reliable, and is an excellent choice for a variety of applications.

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