SMBJ5914BE3/TR13

The SMBJ5914BE3/TR13 is a single zener diode. It is a particular type of diode which is most commonly used for voltage regulation, signal clipping and limiting, and as a switch. Zener diodes have a reverse breakdown voltage, so that when a specified voltage is applied in the reverse bias direction, the diode "breaks down" stopping current flow, like a switch. This voltage can be set by the user through proper selection of the series resistor.

The SMBJ5914BE3/TR13 is a low-capacity zener diode, and is mainly used for voltage regulation, signal clipping, and general switching applications. It has a maximum reverse breakdown voltage of 59 V and 14 mA of average zener current. The maximum power dissipation is 500 mW and it has a temperature coefficient of 17 mV/C. It is rated for a maximum operating temperature of +125 C.

The most common applications for the SMBJ5914BE3/TR13 include voltage regulation and protection from transient overvoltages. It can be used to provide a regulated voltage to a load, even when the input voltage is varying. It can also be used to provide protection against scintillation and overvoltage spikes, which can be generated by an external source or due to a load fault. Another common application is signal clipping and limiting. A Zener diode can be used to limit the peak level of a signal, which can be important in protecting a system from damage due to excess voltage.

The working principle of the SMBJ5914BE3/TR13 is based on the Zener effect, which is the phenomenon of current conduction in the opposite direction to known as the “zener region”. The zener region is a range of voltages between the breakdown voltage (Vz) and the knee voltage (Vk). As the applied voltage increases between these two points, the zener current rises proportionally. At the knee voltage, the zener current sharply increases, causing the zener diode to breakdown and current to flow in the opposite direction.

The SMBJ5914BE3/TR13 is completely encapsulated for environmental and mechanical protection, making it suitable for a wide range of applications. It is available in both surface mount and through hole packages, which makes it suitable for both through-hole and surface mount assembly. Its small size, low cost, and robust construction make it ideal for a variety of applications, including voltage regulation, power supply design, signal clipping, limiting, and general switching.