1N8179

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

TVS - Diodes are some of the most widely used components in electrical engineering. The 1N8179 is a type of TVS diode that is used in high-speed switching and transient protection applications. This article will explain the application field and working principle of this device.

The 1N8179 is an ultrahigh-speed bidirectional diode capable of transmitting up to 20A. The device is ideal for applications such as high-speed signal switching and transient protection in automotive, telecommunications, and military applications. It is also widely used in low-voltage circuits.

The 1N8179 is a zener diode with an internal resistance that maintains a constant voltage when the voltage across the diode reaches the breakdown voltage. This property of zener diodes allows them to be used as signal level-shifters, clamps, shields, and surge dampers. The device can also withstand pulses up to 30A peak current.

The 1N8179 is composed of two light-triggered thyristors (LTTs) connected in series. Each light-triggered thyristor is connected to its own anode terminal. The two anode terminals are then connected to a reverse biased voltage divider network and a reverse biased zener diode. A resistor is connected across the reverse biased voltage divider network, which provides an alternative fail-safe measure. When the voltage applied across the device exceeds the breakdown voltage, the avalanche breakdown of the zener diode triggers the LTTs, which then reduce the current passing through the device.

The 1N8179 has a low on-state capacitance and low input capacitance. This makes the device suitable for high-speed, high-frequency switching applications. The internal resistance of the device also ensures low heat generation when it is switching. Additionally, the device has a wide operating temperature range from -65°C to +175°C.

The 1N8179 is a reliable device for high-speed applications, and it is also widely used in automotive applications and industrial power supplies. The device can be used for signal conditioning and EMI/RFI suppression. Additionally, it is also used in parallel with a transient voltage suppressor (TVS) to protect circuits and components from high transient voltages.

In summary, the 1N8179 is a multifunctional diode with wide application in high-speed signal switching, transient protection, and EMI/RFI suppression. The device has a low on-state capacitance and low input capacitance, which makes it suitable for high-frequency applications. It is also highly reliable and suitable for use in a wide operating temperature range.

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