SMCJ58A-M3/9AT

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TVS - Diodes are electrical protection devices used in various applications to protect electronic components from damage caused by high voltage transients. These devices work by providing a high discharge capacity before or during an overvoltage event and regularly are used in systems which are exposed to power line surges or transients caused by lightning strikes. The SMCJ58A-M3/9AT is a unidirectional standard TVS-diode specifically designed to protect sensitive electronic equipment against damages caused by transients. It possesses a wide operating range of 5.0 to 170 volts, very low leakage current (100nA at 5V) and is capable of dissipating up to 9A peak pulse current.

The most common application of SMCJ58A-M3/9AT is protection circuits for portable electronic devices. This device is used in many products which are exposed to high voltage transient such as mobile phones, chargers, laptops, digital cameras, and accessories for gaming systems. In these applications, the SMCJ58A-M3/9AT provides fast response time for over-voltages which occurs suddenly and the low leakage current ensures the device does not influence the normal operation of the device. Another popular application of the SMCJ58A-M3/9AT is in automotive electronics, used in automotive electronic control units, lighting systems, navigation and infotainment systems, and power windows.

The SMCJ58A-M3/9AT works by forming a junction with the component it is supposed to protect and it starts operating as soon as overvoltage occurs. This is known as the breakdown voltage. When a voltage is applied which is greater than the breakdown voltage, a strong electric current will flow through the device and some of the electric energy is dissipated in the form of heat energy, thus protecting the component. The breakdown voltage of SMCJ58A-M3/9AT is 15V at 55°C which ensures reliable protection of electronic components. The device also has a low clamping voltage, which is the voltage at which the device begins to conduct current and limits the possible overvoltage to a certain level. The clamping voltage of SMCJ58A-M3/9AT is 25.2 V for a protective current of 8A.

The SMCJ58A-M3/9AT is a one-way valve, meaning that it only allows current to flow in one direction. This is an important feature of protection devices, since some transients can be bidirectional. By allowing only unidirectional current, the device can protect the circuit from both positive and negative transients.The SMCJ58A-M3/9AT is a low-cost, high-performance and widely used electronic protection device which provides reliable protection for a variety of applications.

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