MSMBJ58AE3

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TVS - Diodes

The MSMBJ58AE3 is a high-performance Transient Voltage Suppressor (TVS) diode, designed primarily to protect sensitive electronic components and circuit blocks from the harmful effects of transients, such as Electrostatic Discharge (ESD) or lightning. It is a high-speed, low-capacitance thyristor-type diode that can protect complex I/O circuits from damage due to voltage surges.

Application Field

The MSMBJ58AE3 is designed for a wide range of applications in which protection for sensitive components must be provided. It is suitable for use in automotive, industrial, telecommunications, and consumer electronics, etc. It is particularly suited for applications such as mobile communication switching, embedded processor-based systems, solid-state drive (SSD) circuits, load monitor circuits, power supply circuits, etc.

Working Principle

The MSMBJ58AE3 is essentially a Thyristor-type diode with an internal PN junction. Its typical response time is under 10 nanoseconds and its capacitance is low. When exposed to transient voltage levels, it operates similarly to a zener diode, by quickly clamping the voltage to a safe level. The trigger voltage on the diode is adjustable via the bias voltage that is applied to the anode and cathode." When the voltage is below the threshold, the diode passes the current with minimal resistance. When the voltage is above the threshold, the diode is triggered and its resistance is significantly increased, preventing the passage of further current and "clamping" the voltage to a safe level.

The MSMBJ58AE3 diode is packaged in a miniature 2-pin leaded SOT-23 package. It has an operating temperature range of -55°C to 125°C and is RoHS-compliant. The typical peak power dissipation is 1000W, and the typical junction capacitance is only 5pF. It has an on-state voltage of 13.2V to 13.9V and an off-state current of 400mA.

In conclusion, the MSMBJ58AE3 is a TVS diode with a wide range of applications. It is particularly suitable for protecting sensitive electronic components from the effects of transients. Its low junction capacitance and fast response time makes it one of the most efficient and reliable TVS devices available.

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