SA45HE3/73

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A Transient Voltage Suppressor (TVS) diode is a device used in applications that require protection from short-term voltage spikes, typically to prevent damage to components or short-circuiting. The SA45HE3/73 is a 3-terminal, uni-directional spike suppressor diode that is designed to handle high current pulse loads and protect sensitive electronic components. It is able to absorb up to 23A of surge current and dissipate 1.2 kW of pulse power.

The SA45HE3/73 is most commonly used in telecommunications and automotive applications, as well as various industrial applications. Its wide voltage range and high surge current capability make it a reliable choice for a variety of protection needs. Furthermore, the diode is RoHS compliant and is a cost-effective solution for various voltage protection problems.

The SA45HE3/73 employs a reversed voltage structure that routes incoming transient currents into its internal power dissipation element rather than directly to the protected circuit. This limits the peak voltage levels seen at the protected circuit’s terminals, thus protecting it from destruction. The diode’s very low clamping voltage, typically around 12V, ensures that it can effectively control the energy flow.

The diode’s operating temperature range is -40°C to +125°C and it is able to handle a maximum peak pulse current of 23A, with pulses having duration times up to 8.3µs. It can also handle repetitive peak pulse currents of up to 6.5A. The diode’s robust construction provides excellent board level mechanical strength and its low inductance makes it an ideal choice for use in high-frequency applications.

The SA45HE3/73 is designed to provide fast acting protection while being very low on power consumption. It is necessary for the diode to be able to respond quickly to transient events, as the circuit it is protecting may become damaged if it is not quickly cut off. This diode is able to handle up to 600W of power dissipation and is able to clamp the voltage peaks in less than 1µs.

Due to its fast response time and high surge capability, the SA45HE3/73 is an excellent choice for use in telecommunications, automotive, and industrial applications where protection from voltage spikes is necessary. Its low inductance also makes it an ideal choice for use in high-frequency applications, ensuring maximum circuit protection.

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