1N4738A-TR

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1N4738A-TR Application Field and Working Principle

Diodes - Zener - Single group includes a wide range of devices that comprise of single diode and resistors, providing stable operation and protection solutions. These are essential components used in a variety of electronics and electrical systems. To that end, 1N4738A-TR is a type of Zener single diode, which is commonly used for overvoltage protection. Therefore, this article will discuss the application field of 1N4738A-TR and its working principle.

Application Field of 1N4738A-TR

1N4738A-TR is a 6.2V zener diode, which is most commonly used for the overvoltage protection in electronic devices. As such, it is widely used for the regulation of current in electrical and electronics systems. It is designed to withstand 4mA of current, offers a breakdown voltage of 6.2V, has an operating temperature range of −55°C to +150°C and comes in a DO-35 (DO-204AH) package. In addition, the low leakage current, fast recovery time and low noise level makes it ideal to be used in power-failure protection, circuit protection, and discrete or integrated circuit applications.

Apart from that, 1N4738A-TR is also used in fuses, temperature and voltage protection circuits, frequency multipliers, clutches, shock protection, variable control circuits, current limiting circuits and sample-hold circuits. It also has an excellent power handling ability and is known for its reliability, making it suitable for a wide range of applications. However, it is important to take into consideration that the safe operating area should not be exceeded as it can result in permanent damage.

Working Principle of 1N4738A-TR

1N4738A-TR is a Zener single diode that works on a simple principle. When a positive voltage is applied to the diode, the current flowing through the diode will increase until it reaches the breakdown voltage at which point the current becomes constant. When the reverse voltage is applied to the diode, the current flow is much less than the forward voltage, and this is the basic principle behind Zener diodes. This is why a Zener diode like 1N4738A-TR is perfect for overvoltage protection.

It should be noted that the breakdown voltages characterised by 1N4738A-TR is not absolute, but instead changes fairly with operational temperatures due to the variation of the voltage regulation. As such, further precautions must be taken when designing around the Zener diodes, such as selecting the correct resistance values suitable for the characteristics of the device, and for the surrounding environment.

Conclusion

1N4738A-TR is a 6.2V zener diode from the Diodes - Zener - Single group, which is suitable for overvoltage protection purposes. This diode comes with excellent features such as low leakage current, fast recovery time and low noise level, making it a reliable choice for various electrical and electronics applications. Furthermore, it works on a simple principle of increasing current flow until the breakdown voltage, at which point the current remains constant. As such, this diode is suitable for a wide range of applications, and also offers great stability and reliable protection.

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