SMAJ4476E3/TR13

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Diodes - Zener - Single - SMAJ4476E3/TR13 Application Field and Working Principle

The SMAJ4476E3/TR13 is a surface-mount zener diode from Bourns. It features an operating temperature range from -65°C to +175°C and a power dissipation of 600 mW max. It provides an operating voltage between 5.1 and 5.6 V and a maximum reverse current of 500 mA. This diode is intended for protector circuits, U.V. exposure meters, static protection, voltage regulator, and similar applications.

The SMAJ4476E3/TR13 is a very simple device. It is made with two zener diodes connected in parallel and a voltage dividing resistor array inside the package. The diodes are connected so that they are in series, with the zener diode function being to limit the reverse current that can pass through the diodes.

The Zener diode works by providing a reverse voltage that is higher than the voltage applied across the circuit. If a high-enough voltage is applied to the circuit, the Zener diode can fire and divert the voltage away from the circuit. The voltage from the Zener diode is then returned to the point of origin. If the applied voltage is not high enough to trigger the diode, the voltage of the circuit will remain stable.

The resistor array acts as a voltage divider, reducing the effect of the Zener diode. As the applied voltage reaches the level of the Zener diode\'s breakdown voltage, the resistor array reduces the voltage issued by the diode, bringing it back down to the original level. This allows the diode to remain effective even at lower voltages.

The SMAJ4476E3/TR13 provides a maximum reverse voltage of 5.6 V, a maximum forward voltage of 6 V, and a maximum reverse current of 500 mA. It also provides a dynamic impedance of 4 Ω and an operating temperature range of -65°C to 175°C. With these specifications, the diode can provide effective voltage regulation and protection against transient voltages.

Due to its low capacitance and high frequency operation, the SMAJ4476E3/TR13 is ideal for applications that require protection from transients, such as automotive and telecommunications systems. It also provides protection for U.V. exposure meters, static protection for static sensitive devices, and voltage regulation for digital circuits.

The SMAJ4476E3/TR13 is a great choice for a variety of scenarios due to its simple construction, relatively low cost, and reliable performance. Even in applications where cost is a major factor, such as in consumer electronics or automotive applications, the cost of the diode is well worth the reliability it provides.

The specific data is subject to PDF, and the above content is for reference