1.5KE91CAHB0G

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TVS diodes are a common type of avalanche diode composed of two two-terminal PN junction devices. TVS diodes, or transient voltage suppressors, are used to protect sensitive electronics from voltage spikes and surges. The 1.5KE91CAHB0G is a particular type of TVS diode made by Littelfuse with the following characteristics: operating voltage of 91V, non-repetitive peak current of 1.5kA, and standoff voltage of 91V. This device offers excellent electrical characteristics with low leakage current and high capacitance. But, what is the 1.5KE91CAHB0G application field and working principle?

Application Field

The 1.5KE91CAHB0G is designed for use in many applications. It is commonly used in automotive, industrial, medical, and consumer electronics. It can also be used in instrumentation and telecommunications applications. The primary purpose of the 1.5KE91CAHB0G is to protect against electrostatic discharge (ESD) and electrical transients, which can cause data errors, malfunctioning of electronics, or component failure. It is a low-capacitance diode designed to clamp high transient voltages due to ESD or other high-energy events while allowing normal signal operations. The wide operating temperature range, fast response time, and performance make it a great choice for high-reliability and general use.

Working Principle

The working principle of the 1.5KE91CAHB0G is based on the PN junction avalanche effect. The PN junction consists of two types of semiconductor materials, n-type and p-type. When a voltage is applied across the PN junction, it creates a electric field that opposes the movement of electrons in the n-type material. When the applied voltage reaches the breakdown voltage of the PN junction, the electric field becomes so strong that it creates a condition called avalanche breakdown, where the electrons accelerate across the junction in a chain reaction. This produces a large voltage and current spike that can damage sensitive electronics components. The 1.5KE91CAHB0G is designed to provide protection by clamping the voltage and current spikes before they can cause any damage.

Conclusion

The 1.5KE91CAHB0G is a type of TVS diode designed to provide protection from ESD and other electrical transients. It can be used in many different applications where a low capacitance, wide operating temperature range, and fast response time is required. Its ability to quickly clamp the voltage and current spikes due to ESD or other high-energy events make it a great choice for protecting sensitive electronics from damage.

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