1KSMB30AHR5G

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TVS or transient voltage suppressors are semiconductor devices which provide protections against surges in the circuit. The 1KSMB30AHR5G TVS diode is designed for automotive applications. This study will look at the application field and working principle of the 1KSMB30AHR5G.

Design Features

The 1KSMB30AHR5G TVS diode is a monolithically integrated three-terminal device which is designed for automotive power supply applications. It features transient voltage suppression and low-clamping ratio. The device is designed to provide a high level of electrical protection against overvoltage or high voltages which can be cause by automotive power surges. The device is designed to be low on-state voltage and very low leakage current. It also features fast response times and a wide operating temperature range. The device is rated for 30V and is able to withstand up to 8A of peak current.

Application Field

The 1KSMB30AHR5G TVS diode is designed for use in automotive circuits where protection against overvoltage is needed. It is specifically designed to protect against very high frequency power supply input to microcontrollers, FPGAs, and Switching Supplies. The device is also suitable for protecting microcontrollers and other integrated circuits which are being used in systems which must meet Automotive Safety Integrity Level 2 (ASIL 2) and Automotive Safety Integrity Level 3 (ASIL 3) standards. The device is also suitable for protecting against overvoltage and ESD events in other automotive systems such as power supply modules, ECUs, transceivers, and solenoids.

Working Principle

The 1KSMB30AHR5G TVS diode operates on a simple principle. It works by clamping the voltage at the anode of the device when the voltage at the cathode rises above its rated value. This prevents the voltage from rising further and keeps it below the rated value. This also reduces the peak current that can flow through the device. The device is designed to provide a low clamping ratio to keep the peak current flowing through it low. This helps to protect the device and the circuit from short-term overvoltage, ESD, surge, and transient events.

The 1KSMB30AHR5G TVS diode is designed to operate in the breakdown region continuously. The device is designed to allow low leakage current and low on-state voltage, ensuring that the device does not cause too much energy to be dissipated. The fast response time ensures that the device can provide protection against fast transient events and voltage spikes.

Conclusion

The 1KSMB30AHR5G TVS diode is an ideal choice for automotive applications which require protection from overvoltage and transient events. It features a low clamping ratio and fast response times, ensuring that it can provide effective protection against high frequency input operations and surges in power supply input. It is also designed to be low on-state voltage and very low leakage current, making it an energy efficient device. By providing an effective level of protection against overvoltage and transients, the device helps to ensure the safety and reliability of automotive systems.

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