5KP40HE3/73

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TVS - Diodes are important components of circuit designs to protect active electronic devices from electrical transients such as lightning or power line bursts. The 5KP40HE3/73, a unidirectional transient voltage suppression diode, is part of this family of products and is used to protect automotive and industrial applications from voltage transients.

The 5KP40HE3/73, rated for 40V maximum, is a unidirectional, bidirectional, or bilateral transient voltage suppression diode. It is a low-profile device and comes in a hermetically sealed SOD-88 package. The 5KP40HE3/73 protects connected devices from surge energy up to 400W at 8/20μs, offering an IEC 61000-4-2 ESD protection level of ±2kV without blocking.

In terms of applications, the SOD-88 5KP40HE3/73 is typically used to protect automotive and industrial components, as well as communication lines, including RS232, V.35, V.36, T1/E1, and HDMI lines. The device can be used in combination with non-invasive line protection components, such as polymeric or MLV varistors, as well as ferrite devices. In addition, the 5KP40HE3/73 can also be used in audio/video ports or other areas where transient voltage protection is required.

When it comes to the device’s working principle, the 5KP40HE3/73 utilizes a “trap diode” technique. This technique works by activating a fast switching element in the device when an over-voltage is detected, effectively diverting the surge from the device’s input to its output. This technique also allows the device to respond quickly, sometimes in as little as 1ns.

The 5KP40HE3/73 provides excellent surge protection and its small form factor makes it ideal for applications where space is limited. The device’s hermetic seal also ensures that it is reliable and sealed against external environmental conditions, making it an ideal choice for automotive and industrial applications.

In short, the 5KP40HE3/73 is a versatile device for protecting automotive and industrial applications by up to 400W of surge energy. Its low profile and hermetic seal make it ideal for usage in limited space applications, as well as its fast response time thanks to its trap diode technique.

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