BZG05C7V5-HE3-TR3

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The BZG05C7V5-HE3-TR3 is a Zener controlled single diode from Vishay Semiconductors designed for general purpose rectification and protection purposes. This package is an SOD-123 package that is only 1.4mm wide, 0.9mm high, and 1.3mm long. Its ultra-compact size combined with its top and side electrical terminals allow it to be used in a wide range of applications.

Application Field

The BZG05C7V5-HE3-TR3 is a general-purpose rectifier and protection diode suitable for a variety of applications and intended primarily for the Automotive sector. It is particularly adapted to the power electronics segment where integration of the device onto the PCB is a crucial factor. This device is great for applications that require high power with limited space. It is also suitable for applications where noise must be avoided as it includes an integrated external resistor to reduce the effect of switching events.

This diode can also be used in various electrical situations including under high-voltage overshoot and reversed-battery protection and connecting battery and DC/DC converters. It is also suitable for overvoltage protection for low ohm potential dividers, protection circuits for DC command signals and sure grip relays, and suppress EMI/RFI noise in computers or audio equipment. In addition, this device can be used in prevention of reversed and low voltage circuit conditions, combinational logic circuits, and in car audio switches.

Working Principle

The BZG05C7V5-HE3-TR3 is a Zener diode, regulated using a specialZener voltage. All types of diode are subject to a gradual decrease in reverse voltage when the reverse voltage is increased beyond a certain value, the Zener diode is unique in that the voltage on the reverse direction never decreases, but always remains the same. The integrated external resistor ensures that the Zener voltage is kept constant even when the current is increased.

When there is a regular voltage current flowing through the device, it will work as a rectifier and will allow only the current flowing in one direction to pass through. As soon as the reverse voltage exceeds the predetermined Zener voltage, the device will start to conduct the reverse voltage and will protect the sensitive components. This protection is essential for many automotive applications.

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