BZX85B2V7-TAP

The BZX85B2V7-TAP is a silicon epitaxial planar Zener diode, commonly used in applications such as voltage reference, reverse-current protection, and peak-voltage clamping. As a single Zener diode, it is designed to maintain a constant voltage across its terminals when exposed to high reverse voltages; this allows for the regulated regulation of a wide range of voltages in circuit applications.

In terms of its physical characteristics, the BZX85B2V7-TAP is a 3 pin diode available in a DO-35 package. Its total power dissipation is equal to 500mW and the thermal resistivity of its junction is equal to 300K/W. Furthermore, its reverse breakdown voltage ranges from 2.4 to 2.7V and its Zener impedance is equal to 7.5 ohms.

Regarding its practical applications, the BZX85B2V7-TAP diode can be employed for a variety of purposes. One of the most frequent uses of this device is for the regulation of reverse-currents. For example, in auto-reset circuits, this diode is used to protect the circuitry from sudden surges. The diode also serves as an excellent voltage-clamping device, which allows for efficient peak-voltage protection. In addition, its Zener characteristics allow it to be employed in stabilizing circuitry, as well as voltage-reference circuits.

Another significant use of the BZX85B2V7-TAP is related to the electrolytic capacitor. As this diode can fail in a virtually open-circuit mode, it proves to be of great importance in the proper functioning of electrolytic capacitors. This is due to the forward conduction characteristics of the BZX85B2V7-TAP; because of this, it may be used to reduce the surge current through the electrolytic capacitor by highly regulating and restricting the current.

The working principle of the BZX85B2V7-TAP is based on the principle of reverse breakdown of a diode. In view of its properties, it may be observed that, when a certain reverse voltage is applied across the diode, a large current flows in the opposite direction, causing the voltage to remain constant and independent of the applied voltage. This is a highly beneficial characteristic as it allows for stabilised outputs and protection from transient over-voltages in devices.

In conclusion, the BZX85B2V7-TAP single Zener diode is a highly efficient and practical device, owing to its high standby power rating, excellent thermal properties and accurate voltage regulation. It is commonly used in applications such as voltage-reference, reverse-protection, and peak-voltage clamping.