The SMAJ4469CE3/TR13 is a diode from the single zener diode family. It belongs to the surface mount technology (SMT) which helps reduce the size and complexity of a design as well as saving space on the board. It has a Zener voltage breakdown of 4.7V and an operating temperature range between -55 and 125 °C.
This diode has a variety of different applications, ranging from noise protection, surge protection, regulating power supplies, and aiding in the creation of oscillators. In addition, it can be used to create a voltage reference circuit by incorporating the diode in a voltage divider.
This device works on the principle of Avalanche Breakdown. When the voltage applied to this Zener diode is more than the built-in breakdown voltage, the voltage across the diode increases and starts to reduce the current exponentially. This breakdown has a very sharp curve and is of a predictable nature, which allows precise voltage regulation.
When the breakdown occurs, carriers start to recombine without producing heat, resulting in the Zener junction achieving stable breakdown. This allows for a predictable performance across a wide range of temperature and voltage ranges, which makes the SMAJ4469CE3/TR13 an ideal choice for usage in power supplies and voltage regulation circuits.
In addition, this diode is highly reliable and has a negligible power dissipation. This helps save energy to a certain degree and increases the longevity of the device in environmentally harsh conditions.
To summarise up, the SMAJ4469CE3/TR13 is a highly reliable, efficient, and precise Zener diode that can be used in a variety of applications such as noise and surge protection, creatingReference/Voltage Regulation circuits, and as an oscillator. It is also highly versatile, with a variety of different temperature, voltage and power dissipation ranges and can be safely used with minimum maintenance.