TV15C8V0JB-G Circuit Protection

TVS - Diodes

TV15C8V0JB-G, a kind of Transient Voltage Suppression (TVS) Diode, is designed to protect the electronic equipment from transient overvoltage. It is a two-terminal, unidirectional or bidirectional device, often made with silicon-oxide or zinc-oxide based materials. Its application field and working principle will be discussed in this article.

Application Field

The TV15C8V0JB-G are most commonly used for ESD (Electrostatic Discharge) protection and switching load transient protection. ESD occurs when an electrostatically charged object suddenly releases its charge to a conductor, resulting in an overvoltage surge, that is why ESD protection is an essential part in all electrical design projects. TVS Diodes are also ideal for protecting sensitive components from lightning transients or power cross surges, usually caused by lightning strikes or by electric utility switches, etc. Besides, it can also be used in the communication line, such as V24 RS232, IEEE1394, Ethernet, USB, etc.

Working Principle

The TV15C8V0JB-G is used to clamp the voltage by limiting the peak transient current. It works by forming a low impedance path between the two terminals to temporarily absorb the huge amount of current during an overvoltage surge and keep the power voltage within the acceptable range. When exposed to a sudden increase in voltage, the diode will begin to conduct; as the voltage rises, the current will also increase until it reaches its peak and then decrease as the capacitance between the terminals is fully charged. This working principle allow the transient voltage to be clamped down and the protected circuit is kept from any overvoltage.

The TV15C8V0JB-G also carries out the automotive industry’s Qualified Environmental Stress Screening (QESS) requirements, which include power cycling and operating temperature tests. This is to ensure that the TVS Diodes can withstand long-term exposure to harsh environments.

Conclusion

The TV15C8V0JB-G TVS Diode is a two-terminal, unidirectional or bidirectional electronic device most commonly used for ESD and switching load transient protection as well as lightning transients or power cross surges protection. It can also be used in various communication lines. During an overvoltage surge, the diode will conduct to form a low impedance path between the two terminals, limiting the peak transient current, and clamping the voltage within the acceptable range.