SMBJ45A-13-F

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TVS (Transient Voltage Suppression) Diodes play an essential role in protection circuitry for electronic systems. This is especially true in many mobile and telecom related products, where sudden voltage spikes, either from the power rail or signal paths, can cause extensive damage. In such cases, the SMBJ45A-13-F can help protect valuable systems.

Specifically designed for high-speed telecom applications, the SMBJ45A-13-F is a fast-acting TVS diode which is designed to operate as a specially designed bidirectional protection device for overvoltage transients. It operates in the breakdown region. This device has an operating voltage range of 5.0 to 83.0 Volts, with a peak pulse power rating of 600 Watts (at 1.8μs pulse width) and a clamping voltage of 45V. It has a reverse standoff voltage of 13 Volts. It is housed in a SMD-6 JEDEC Type package.

The TVS diode is basically a Zener diode with a combination of avalanche and Zener junctions. The avalanche junction exhibits a sharp current-voltage peak, and the Zener junction displays a steep current-voltage change. This combination offers UL listed, fast response, transient voltage protection for sensitive electronics. When a voltage transient occurs, the diode is almost instantaneously activated and the voltage is clamped at a safe level for the protected system.

When voltage transients such as ESD strikes, the avalanche junction will breakdown first and allow current to flow in both directions. The Zener junction starts to conduct as the transient voltage rises further. The combined response of the TVS diode is fast enough that most surges are quickly clamped at the rated standoff voltage. Additionally, the diode will self-reset when the transient has been absorbed.

The SMBJ45A-13-F can be used in a variety of applications where transient protection is needed. Mobile device designers and telecom manufacturers have adopted the device in their protection schematic. It can also be found in many automotive and IT related products. Its high power rating and fast switching speed make it an ideal choice for these high-speed designs.

In summary, the SMBJ45A-13-F is a fast acting, bidirectional TVS diode, manufactured in a SMD-6 JEDEC Type package, that offers exceptional protection against overvoltage transients. With its wide operating voltage range of 5.0 to 83.0 Volts, and clamping voltage of 45V, it offers a reliable solution in protecting valuable electronic systems from damage caused by voltage transients.

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