1.5KE91AHA0G

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TVS (transient voltage suppressors) diodes are devices used to protect electronic components from unexpected power or voltage surges. The 1.5KE91AHA0G is a TVS diode specifically designed to protect components from voltages greater than 1.5kV. It is used in a wide variety of applications, especially in the automotive industry where surge protection becomes especially important. This article will discuss the 1.5KE91AHA0G\'s application field and working principle.

The 1.5KE91AHA0G is a unidirectional diode that is designed to protect components from overvoltages of up to 1.5kV. It is typically used in automotive applications, including engine control systems, ECU, and fuel injection systems. The 1.5KE91AHA0G is designed to protect components from sudden voltage surges that can cause significant damage. It has a surge current rating of up to 500A and a very low clamping voltage across its terminals due to its low junction capacitance.

The 1.5KE91AHA0G offers a variety of features that make it ideally suited for automotive applications. It has a wide operating temperature range, from -55°C to 150°C, ensuring that it will perform reliably in both cold and hot environments. It is also hermetically sealed, making it highly resistant to shock, vibration, and mechanical stress. Additionally, the 1.5KE91AHA0G has high peak pulse power capability of up to 1000 Watts, making it suitable for use in a wide variety of automotive applications.

The 1.5KE91AHA0G\'s working principle can be described as a “crowbar” action. When an overvoltage is present across the terminals of the diode, the p-n junction will become forward-biased. This causes the diode to act as a low-resistance conductor, allowing current to flow from anode to cathode. The result is a sudden, current-limited transition from a high-voltage state to a low-voltage state. This allows the diode to protect the electronic components from the effects of overvoltage while still allowing normal operation at lower voltages.

In summary, the 1.5KE91AHA0G is a TVS diode designed to protect components from overvoltages of up to 1.5kV. It is used in a variety of automotive applications due to its wide operating temperature range, hermetic seal, and high peak pulse power capability. The 1.5KE91AHA0G works by conducting current in a current-limited manner when an overvoltage is present. This allows it to protect components from overvoltage while still allowing normal operation at lower voltages.

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