TZS4698-GS08

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Diodes - Zener - Single

The TZS4698-GS08 is a single, miniature zener diode from the TZS range that is designed to protect circuits against voltage spikes and surges. It is rated at 8V and packaged in industry standard SOT-23 housing that enables it to be soldered directly onto parent circuit boards. It operates in a wide temperature range of -55ºC to +125ºC and has an excellent surge current capacity of 350mA.

Applications

The TZS4698-GS08 is ideal for use in a variety of power management applications such as cellular phones, digital cameras, PDAs and automotive electronics. It is also suitable for protection circuits, oscillator circuits and power supplies. As it is packaged in an industry standard SOT-23 housing, the TZS4698-GS08 can be directly soldered onto the target circuit board, thereby reducing the need for additional components.

Working Principle

The zener diode works by allowing current to flow in one direction as normal, while resisting the flow from the other direction when a certain voltage has been reached. This ‘breakdown’ voltage, or zener voltage, is specified for each diode type. In the case of the TZS4698-GS08, this is 8V. Above this voltage the diode ‘breaks’ and the current flows freely in the reverse direction, ensuring that both positive and negative voltage spikes are equally restricted. This current limiting effect prevents the components downstream from being damaged by the voltage spike.

The TZS4698-GS08 also boasts excellent temperature characteristics, such as a reverse current of 10µA at +25ºC between -55ºC and +125ºC. This ensures that the diode will continue to provide adequate protection, even when used in extreme temperatures.

Conclusion

The TZS4698-GS08 is a single, miniature zener diode from the TZS range that is designed to protect circuits against voltage spikes and surges. Its wide temperature range of -55ºC to +125ºC, surge current capacity of 350mA, and excellent reverse current characteristics make it ideal for a variety of power management applications such as cellular phones, digital cameras, PDAs and automotive electronics. Its industry standard SOT-23 housing makes it easy to implement in existing circuit designs.

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