MSMBJ160CAE3

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TVS diodes are an essential component in power electronic devices, as they provide protection from electrical overstress. The MSMBJ160CAE3 is a commonly used TVS diode designed to protect sensitive electronic equipment from voltage surges. This article will discuss the application field and working principle of this device.

Application Field

The MSMBJ160CAE3 is a dual bi-directional device, designed for applications typically found in the consumer, automotive, telecommunications, and industrial markets. It is especially suitable for high frequency data lines, because of its low clamping voltage and low capacitance.

In automotive applications, this device is regularly combined with surface mount parasitic suppressor (PES) chips to offer superior protection against transient voltage spikes. In telecommunications applications, the versatility of this device makes it the preferred choice for protecting voltage sensitive telecommunications equipment from voltage surges.

The industrial segment also benefits from the use of this device. In industrial applications, the device is used for protecting motor control circuits and other industrial equipment from transient voltage conditions. Furthermore, the device can be used for protecting high voltages in the power grid, as well as for protecting CNC components in machine tools.

Working Principle

TVS diodes are transistors composed of three layers: a P-type substrate, an N-type collector layer, and a P-type emitter layer. A voltage is applied to the base, which controls the flow of current through the device. When a voltage spike is detected, the device triggers and a surge of current is allowed to flow through the circuit.

The MSMBJ160CAE3 device is composed of two back-to-back diode elements, connected in series to form a single bi-directional device. When a voltage spike is detected, one diode conducts current in one direction and the other conducts current in the opposite direction. This dual diode structure provides a higher breakdown voltage, lower surge current and better protection than an individual diode.

The device is rated at 160V breakdown voltage and has an 8A peak pulse current rating, with a peak pulse current surge of 100A. The maximum capacitance is 3pF, while the clamping voltage is 33V. It also has a 5% ESD protection level and is rated to an operating temperature range of -40°C to +125°C.

In Conclusion

The MSMBJ160CAE3 is a commonly used TVS diode, designed to protect sensitive electronic equipment from voltage surges. Its application field covers the consumer, automotive, telecommunications, and industrial markets. This is a dual bi-directional device, composed of two back-to-back diodes, connected in series. When a voltage spike is detected, the device triggers and a surge of current is allowed to flow through the circuit. The device is rated at 160V breakdown voltage and has an 8A peak pulse current rating, with a peak pulse current surge of 100A.

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