SMBJ6.5D-M3/H

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TVS (Transient Voltage Suppressor) diodes are an important type of protection device used to combat against various destructive electrical surge phenomena such as Electrostatic Discharge (ESD) and lightning. The SMBJ6.5D-M3/H is a popular example of a transient voltage surge suppressor designed for surface mount technology and its application field and working principle will be discussed in detail here.

In terms of its application field, the SMBJ6.5D-M3/H is used to protect components and circuits from the destructive ESD current that can reach up to 35kV. It is also used to protect Against Lightning Induced Transients (ALITs) reaching up to 30kA in eight/20us waveform. As it is designed for surface mount technology, it is used in a variety of applications such as telecommunications, computers, peripherals and industrial equipment.

In terms of its working principle, the SMBJ6.5D-M3/H utilizes a junction of reverse biased PN junctions in order to absorb the surge current generated by ESD and ALITs. When the device is exposed to a surge event, the reverse biased PN junction voltage begins to increase until it reaches a breakdown voltage. Since the breakdown voltage is relatively low, it is able to absorb a significant amount of surge current. The device is then able to restore itself and resume its normal state once the surge event dissipates.

When comparing the SMBJ6.5D-M3/H to other transient voltage surge suppressors, it has a very low response time, only 2 nanoseconds, making it well-suited for low-capacitance protection. Furthermore, it has a peak pulse power of 400W and an operating temperature range from -55°C to 125°C, making it quite resilient and reliable. Finally, it has a maximum voltage range of 600V, making it an ideal choice for protecting circuits against ESD and ALITs.

In conclusion, the SMBJ6.5D-M3/H is an excellent choice for providing ESD and ALITs protection. Its low response time, peak pulse power and operating temperature range make it an ideal device for various applications listed above. Its reverse biased PN junction technology also enables it to absorb a significant amount of surge current and then restore itself in a normal state once the surge event dissipates. The SMBJ6.5D-M3/H proves to be an excellent choice for transient voltage surge protection and should be considered for any of its listed applications.

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