SMBJ6.5CA-E3/5B

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TVS (transient voltage suppression) diodes are unique devices that protect sensitive electronic components from exposure to sudden, sharp increases in voltage or electrical spikes. This type of protection prevents damage from overvoltage caused by lightning, short circuits, static electricity, and many other sources. The SMBJ6.5CA-E3/5B is a transient voltage suppressor, a diode designed for the specific purpose of protecting more sensitive components. In this article, we will explore the application field and working principle of this device.

Application Field

The SMBJ6.5CA-E3/5B is a bidirectional LED-resettable device. It is most often used in broadcast, industrial, networking, telecommunication, and automotive applications. This device is commonly employed to protect sensitive devices such as processors, storage devices and A/D & D/A converter circuits. It can also be applied for protection in applications such as inductive load switching and protection against audio noise or other EMI interference between multiple devices.

The protective device Surge Breakdown Voltage (VBR) of the SMBJ6.5CA is 6.5V, with an absolute maximum breakdown voltage of 5V. The device features low clamping voltage, fast response time (<1ns), and low leakage current, making it an ideal choice for application with both high surge currents and fast switching times. The SMBJ6.5CA is also RoHS compliant and halogen free.

Working Principle

A transient voltage suppressor (TVS) is an electrical component that is specifically designed to protect vulnerable electrical components from sudden voltage spikes. It essentially works like an avalanche diode, and can be thought of as an active component because it requires a certain voltage to trigger its clamping action. The SMBJ6.5CA-E3/5B works by quickly switching to a conductive state when a sharp surge in voltage is detected. This will absorb and dissipate the sudden increase in voltage, preventing further damage to the components. The device is designed to recover quickly, resetting to it’s normal non-conductive state after the surge in voltage has dissipated.

The SMBJ6.5CA-E3/5B is a bidirectional device, meaning that it can protect both AC and DC circuits from voltage transients. It also has a wide operating temperature range of -65°C to +175°C, and is available in a relatively small package size, making it a great choice for applications that have space constraints.

In summary, the SMBJ6.5CA-E3/5B is a reliable and effective transient voltage suppressor. It provides fast-acting protection for vulnerable components from voltage transients, and its small form factor makes it an ideal choice for space-constrained applications. Its combination of fast response time, low clamping voltage, low leakage current, high surge breakdown voltage, and wide operating temperature make it a great choice for a variety of applications.

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